Mechanical Sentence Examples

mechanical
  • The advances were not merely mechanical but chemical as well.

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  • Even then it looked more like a mechanical toy than a living creature.

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  • As it is with mechanical improvements, so is it to a still greater degree with changes in the function of timbre in art.

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  • Mayer, a physician at Heilbronn, published an attempt to determine the mechanical equivalent of heat from the heat produced when air is compressed.

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  • Judd that this structure may be due to mechanical stresses.

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  • These discoveries not only weakened or destroyed the respect for authority in matters of science, but brought about a marked tendency to mechanical explanations of life and disease.

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  • It has not indeed proved practically available; but his system of calculating cometary perturbations by means of "mechanical quadratures" has formed the startingpoint of all subsequent researches on the subject.

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  • The peasants are described as intelligent, and the artizans are justly celebrated for their ingenuity and mechanical skill.

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  • That it formed the starting-point, and largely prescribed the course of thought on the subject of planetary origin is due to the simplicity of its assumptions, and the clearness of the mechanical principles involved, rather than to any cogent evidence of its truth.

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  • Moreover, the ideas which are usually formed on these points at an early stage are incomplete; and, if the incompleteness of an idea is not realized, operations in which it is implied are apt to be purely formal and mechanical.

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  • Mechanical, commercial, economic and statistical facts (the latter usually involving the time-relation) afford numerous examples.

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  • It was reserved for Charles Darwin, in the year 1859, to place the whole theory of organic evolution on a new footing, and by his discovery of a mechanical cause actually existing and demonstrable by which organic evolution doctrine must be brought about, entirely to change the attitude in regard to it of even the most rigid exponents of the scientific method.

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  • Finally, it brought the simplest living matter or formless protoplasm before the mental vision as the startingpoint whence, by the operation of necessary mechanical causes, the highest forms have been evolved, and it rendered unavoidable the conclusion that this earliest living material was itself evolved by gradual processes, the result also of the known and recognized laws of physics and chemistry, from material which we should call not living.

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  • Other mechanical disturbances may assist in this production of congenital variation.

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  • To the mere tradition preserved by memory and handed on by speech was then added the written record and its later multiplication by the mechanical arts of printing, by which it acquired permanence and universal distribution.

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  • It may be well therefore to remember that precisely these laws apply to a secondary wave of sound, which can be investigated upon the strictest mechanical principles.

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  • The calcination is preferably effected in mechanical roasters, it being especially necessary to agitate the ore continually, otherwise it cakes.

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  • The results are not favourable to a mechanical view of prophecy as involving absolute accuracy of statement.

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  • He appears to have leaned to mechanical explanations of the symptoms of disease, as was especially the case with inflammation, of which he gave the first rational, though necessarily inadequate, theory.

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  • It is notable that an important instrument of research, the speculum, which has been reinvented in modern times, was used by Soranus; and specimens of still earlier date, showing great mechanical perfection, have been found among the ruins of Pompeii.

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  • But this example, combined with the Cartesian principles, set many active and ingenious spirits to work to reconstruct the whole of medicine on a physiological or even a mechanical basis - to endeavour to form what we should now call physiological or scientific medicine.

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  • The most important of these were the so-called iatro-physical or mechanical and the iatro-chemical schools.

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  • The tendency of the school was to explain the actions and functions of the body on physical, and especially on mechanical, principles.

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  • The more judicious of the mechanical or physical school refrained, as a judicious modern physiologist does, from too immediate an application of their principles to daily practice.

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  • Mechanical theories were introduced into pathology, in explanation of the processes of fever and the like, but had little or no influence on therapeutics.

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  • This phase is most clearly developed in Archibald Pitcairne (1652-1713), who, though a determined opponent of metaphysical explanations, and of the chemical doctrines, gave to his own rude mechanical explanations of life and disease almost the dogmatic completeness of a theological system.

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  • His countryman and pupil, George Cheyne (1671-1743), who lived some years at Bath, published a new theory of fevers on the mechanical system, which had a great reputation.

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  • Their English contemporaries and successors, John Freind, William Cole, and Richard Mead, leaned also to mechanical explanations, but with a distrust of systematic theoretical completeness, which was perhaps partly a national characteristic, partly the result of the teaching of Sydenham and Locke.

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  • Freind (1675-1728) in his Emmenologia gave a mechanical explanation of the phenomena of menstruation.

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  • His Mechanical Account of Poisons, in the first edition (1702), gave an explanation of the effects of poisons, as acting only on the blood.

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  • James Keill (1673-1719) applied Newtonian and mechanical principles to the explanation of bodily functions with still greater accuracy and completeness; but his researches have more importance for physiology than for practical medicine.

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  • For mechanical conceptions he substituted the theory of" animism "- attributing to the soul the functions of ordinary animal life in man, while the life of other creatures was left to mechanical laws.

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  • Laennec, it is hardly too much to say that this simple and purely mechanical invention has had more influence on the development of modern medicine than all the "systems" evolved by the most brilliant intellects of the 18th century.

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  • By them the demonstration of Harvey that the circulation of the blood is in large part a mechanical process, and nowhere independent of mechanical laws, was considerably enlarged and extended.

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  • It is under this closer occupation with mechanical conditions that surgery to-day is said - not without excuse, but with no more than superficial truth - to have made more progress than medicine.

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  • Nor was the theory of reflex action confined to the more "mechanical" functions.

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  • In the treatment of effusions into the pleura and, though with less advantage, of pericardial effusions, direct mechanical interference was practised by one physician and another, till these means of attaining rapid and complete cure took their places as indispensable, and were extended from thoracic diseases to those of the abdominal and other inner parts formerly beyond the reach of direct therapeutics.

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  • Here are collections of pictures and drawings, including the Raphael cartoons, objects of art of every description, mechanical and scientific collections, and Japanese, Chinese and Persian collections, and an Indian section.

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  • This can be done in inclined deposits, it can often be done by the aid of mechanical appliances, though sometimes at an expense not warranted in the saving in the labour of loading.

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  • Sharp curves should be avoided, especially for mechanical haulage.

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  • In metal mines, where, as a rule, mechanical haulage is inapplicable, the cars are moved by men (trammers).

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  • Animal haulage is employed chiefly in collieries and large metal mines; sometimes for main haulage lines, but oftener for distributing empty cars and making up trains for mechanical haulage.

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  • Taking into account the risk attending all mining operations, which make necessary large interest and amortization charges on the cost of a tunnel, it will in most cases be advisable to raise the water to the surface by mechanical means.

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  • A student of mining must receive thorough instruction in geology; he must study mining as practised in different countries, and the metallurgical and mechanical treatment of minerals; and he should have an engineering education, especially on mechanical and electrical lines.

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  • The invention of the mechanical air-pump is generally attributed to Otto von Guericke, consul of Magdeburg, who exhibited his instrument in 1654; it was first described in 1657 by Gaspar Schott, professor of mathematics at Wurttemberg, in his NI echanica hydraulico-pneumatica, and afterwards (in 1672) by Guericke in his Experimenta nova Magdeburgica de vacus spatia.

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  • The so-called oil air-pumps are much more efficient; the valve difficulty is avoided, and the risk of leakage minimized; whilst in addition there is no air clearance between the piston and the base of the cylinder as in the older mechanical forms. The Fleuss pump may be taken as an example.

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  • It is indeed not credible that Hero wrote two separate treatises on the subject of the mechanical powers, which are fully discussed in the Mechanics, ii., iii.

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  • He early distinguished himself as professor of mathematical and mechanical philosophy in the college of Ragusa; but after residing there for several years he returned to his native city, where he became a professor in the Collegio Nazareno, and began to form the fine mineralogical cabinet in that institution.

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  • The mechanical properties of the curves are treated in the article MECHANIcs,where various forms are illustrated.

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  • In some English works coal is still employed for direct heating with various forms of mechanical stokers.

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  • In England directly-heated coal furnaces are still in common use, which in many cases are stoked by mechanical feeders.

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  • Cutting and engraving are mechanical processes for producing decorative effects by abrading the surface of the glass when cold.

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  • The complicated and indirect process of sheet-glass manufacture has led to numerous inventions aiming at a direct method of production by more or less mechanical means.

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  • In this process, however, the entire operations of splitting and flattening are retained, and although the mechanical process is said to be in successful commercial operation, it has not as yet made itself felt as a formidable rival to hand-made sheet-glass.

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  • An effort at a more direct mechanical process is embodied in the inventions of Foucault which are at present being developed in Germany and Belgium; in this process the glass is drawn from the molten bath in the shape of flat sheets, by the aid of a bar of iron, previously immersed in the glass, the glass receiving its form by being drawn through slots in large fire-bricks, and being kept in shape by rapid chilling produced by the action of air-blasts.

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  • The mechanical operation is quite successful for thick sheets, but it is not as yet available for the thinner sheets required for the ordinary purposes of sheet-glass, since with these excessive breakage occurs, while the sheets generally show grooves or lines derived from small irregularities of the drawing orifice.

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  • In most modern works the greater part of these operations, as well as the actual rolling of the glass, is carried out by mechanical means, steam power and subsequently electrical power having been successfully applied to this purpose; the handling of the great weights of glass required for the largest sheets of plate-glass which are produced at the present time would, indeed, be impossible without the aid of machinery.

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  • This definition, however, is highly artificial and objectionable on principle, because when we speak of metals we think, not of their chemical relations, but of a certain sum of mechanical and physical properties which unites them all into one natural family.

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  • To this remarkable combination of properties more than to anything else the ordinary metals owe their wide application in the mechanical arts.

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  • The quality of plasticity is developed to very different degrees in different metals, and even in the same species it depends on temperature, and may be modified by mechanical or physical operations.

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  • This varies in metals from 594 (lithium) to 22.48 (osmium), and in one and the same species is a function of temperature and of previous physical and mechanical treatment.

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  • It has in general one value for the powdery metal as obtained by reduction of the oxide in hydrogen below the melting point of the metal, another for the metal in the state which it assumes spontaneously on freezing, and this latter value, in general, is modified by hammering, rolling, drawing, &c. These mechanical operations do not necessarily add to the density; stamping, it is true, does so necessarily, but rolling or drawing occasionally causes a diminution of the density.

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  • The presence in a metal of even small proportions of arsenide generally leads to considerable deterioration in mechanical qualities.

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  • From a collection of the best experiments by previous workers he selected eighty-two (fifty-one on the velocity of water in conduit pipes, and thirty-one on its velocity in open canals); and, discussing these on physical and mechanical principles, he succeeded in drawing up general formulae, which afforded a simple expression for the velocity of running water.

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  • At the same time, it delights the pure theorist by the simplicity of the logic with which the fundamental theorems may be established, and by the elegance of its mathematical operations, insomuch that hydrostatics may be considered as the Euclidean pure geometry of mechanical science.

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  • This mechanical axiom of the normality of fluid pressure is the foundation of the mathematical theory of hydrostatics.

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  • The emenders postulate mechanical errors in the writing of the figures, but, equally with those who accept them, regard the calculations of the native scribes as above reproach.

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  • Thus the human element is reduced to zero, and the conception of prophecy becomes mechanical.

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  • Determinism thus became a leading characteristic of Jewish apocalyptic, and its conception of history became severely mechanical.

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  • Great improvements have been made in the means of feeding the mills with canes by doing away with hand labour and substituting mechanical feeders or rakes, which by means of a simple steam-driven mechanism will rake the canes from the cane waggons on to the cane-carriers.

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  • In Louisiana the use of mechanical feeders is almost universal.

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  • In diffusion plants the milk of lime is added, in proper proportion, in the cells of the diffusion battery, and the chips or slices themselves act as a mechanical filter for the juice; while in the Sandwich Islands coral-sand filters have been employed for some years, in addition to the chips, to free the juice from impurities held in mechanical suspension.

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  • In endeavouring to make a pan of less power do as much and as good work as one of greater power, they have imagined many ingenious mechanical contrivances, such as currents produced mechanically to promote evaporation and crystallization, feeding the pan from many points in order to spread the feed equally throughout the mass of sugar being cooked, and so on.

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  • All their endeavours have obtained at best but a doubtful success, for they have overlooked the fact that to evaporate a given weight of water from the syrup in a vacuum pan at least an equal weight (or in practice about 15% more) of steam must be condensed, and the first cost of mechanical agitators, together with the expenditure they involve for motive power and maintenance, must be put against the slight saving in the heating surface effected by their employment.

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  • The pans are provided with steam worms to keep the mass hot as required, and with mechanical stirrers to keep it in movement and thoroughly mixed with the water and sweet water which are added to the sugar to obtain a solution of the specific gravity desired.

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  • Taylor bag filters are generally used for clearing the melted liquor of its mechanical impurities.

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  • Dinostratus, a Greek geometer and disciple of Plato, discussed the curve, and showed how it effected a mechanical solution of squaring the circle.

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  • In the mechanical analysis of the soil, after separation of the stones and fine gravel by means of sieves, the remainder of the finer earth is subjected to various processes of sifting and deposition from water with a view of determining the relative proportions of sand, silt and clay present in it.

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  • Given suitable climatic conditions, the type of tobacco produced is determined mainly by the soil, and particularly by its mechanical or physical condition.

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  • In practice, however, we never have to deal with pure zinc minerals, but with complex mixtures, which must first of all be subjected to mechanical operations, to remove at least part of the gangue, and if possible also of the heavy metallic impurities.

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  • Neither mechanical nor magnetic concentration can effect much in the way of separation when, as in many complex ores, carbonates of iron, calcium and magnesium replace the isomorphous zinc carbonate, when some iron sulphide containing less sulphur than pyrites replaces zinc sulphide, and when gold and silver are contained in the zinc ore itself.

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  • The ores of the Joplin district, in the Ozark uplift in the Mississippi Valley, are remarkable in that they are specially adapted to mechanical concentration.

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  • For the desulphurization of zinc blende where it is not intended to collect and save the sulphur there are many mechanical kilns, generally classified as straight-line, horse-shoe, turret and shaft kilns; all of these may be made to do good work on moderately clean ores which do not melt at the temperature of desulphurization.

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  • Furthermore, with the large furnaces which gas-firing makes possible mechanical appliances may be substituted for manual labour in many operations, such as removing and replacing broken retorts, mixing and conveying the charge, drawing and casting the metal, charging and emptying the retorts, and removing the residues and products.

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  • Ordinarily carbon is used as the electrode material, but when carbon comes in contact at high temperatures with any metal that is capable of forming a carbide a certain amount of combination between them is inevitable, and the carbon thus introduced impairs the mechanical properties of the ultimate metallic product.

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  • Among other ingenious applications, he used it to determine the form of movement of a vibrating string, by him first successfully reduced to mechanical principles.

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  • Manufactures.-Rhode Island is essentially a manufacturing state; of the 191,923 persons in the state engaged in gainful occupations in 1900, 101,162 (or 52.7%) were employed in manufacturing and mechanical pursuits.

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  • The prohibition of the exportation from England of machinery, models or drawings retarded mechanical improvement, but in 1790 an industrial company was formed at Providence to carry on cotton spinning, and in December of that year there was established at Pawtucket a factory equipped with Arkwright machines constructed by Samuel Slater.

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  • The existence of evil in opposition to the perfect goodness of God, as thus explained, need not be attributed to God's agency, inasmuch as the whole emanation-process is governed by necessary - as it were mechanical - laws, which may be compared to those of the physical universe.

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  • He will not tolerate the stagnation and tedium of a dull uniformity by mechanical reproduction.

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  • In color-printing, the colors, which are much the same as those in use in Europe, are mixed, with rice-paste as a medium, on the block for each operation, and the power of regulating the result given by this custom to an intelligent craftsman (who, again, is neither the artist nor the engraver) was productive in the best period of very beautiful and artistic effects, such as could never have been obtained by any mechanical device.

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  • It is scarcely possible to imagine a higher effort of hand and eve than this nunome-zOgan displays, for while intricacy and elaborateness are carried to the very extreme, absolute mechanical accuracy is obtained.

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  • It appears, therefore, that Spencer ultimately describes the Knowable in terms of the mechanical conceptions of matter and motion, and that this must give a materialistic colouring to his philosophy.

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  • On the one hand, his whole formulation of Evolution in mechanical terms urges him in the direction of materialism, and he attempts to compose the mind out of homogeneous units of consciousness (or" feeling ")" similar in nature to those which we know as nervous shocks; each of which is the correlative of a rhythmical motion of a material unit or group of such units "(§ 62).

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  • From 1716 to 1718 he published a scientific periodical, called Daedalus hyperboreus, a record of mechanical and mathematical inventions and discoveries.

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  • The same year he published various mathematical and mechanical works.

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  • It is almost impossible by mechanical means to detect the separate ingredients in such an alloy; we may cut or file or polish it without discovering any lack of homogeneousness.

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  • It is certain that the structure existing in the alloy is closely connected with the mechanical properties, such as hardness, toughness, rigidity, and so on, that make particular alloys valuable in the arts, and many efforts have been made to trace this connexion.

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  • Moreover, the three solids S,D and W will differ in minute structure and therefore, probably, in mechanical properties.

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  • Other cases could be quoted, but enough has been said to show the importance of solid solutions and their influence on the mechanical properties of alloys.

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  • The importance is now widely recognized of considering the mechanical properties of alloys in connexion with the freezing-point curves to which reference has already been made, but the subject is a very complicated one, and all that need be said here, is that when considered in relation to their meltingpoints the pure metals are consistently weaker than alloys.

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  • C. Roberts-Austen's six Reports (1891 to 2904) to the Alloys Research Committee of the Institution of Mechanical Engineers, London, the last report being concluded by William Gowland; the Cantor Lectures on Alloys delivered at the Society of Arts and the Contribution a l'etude des alliages (2902), published by the Societe d'encouragement pour l'industrie nationale under the direction of the Commission des alliages (2896-2900), should be consulted.

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  • Electrified bodies exert mechanical forces on each other, creating or tending to create motion, and also induce electric charges on neighbouring surfaces.

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  • Coulomb proved that this mechanical force varies inversely as the square of the distance between the centres of the spheres.

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  • The unit of mechanical force in the " centimetre, gramme, second " (C.G.S.) system of units is the dyne, which is approximately equal to 1/981 part of the weight of one gramme.

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  • For constant charges and distances the mechanical force is inversely as the dielectric constant.

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  • If a small conducting body is charged with Q electrostatic units of electricity, and placed in any electric field at a point where the electric force has a value E, it will be subject to a mechanical force equal to QE dynes, tending to move it in the direction of the resultant electric force.

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  • This provides us with a definition of a unit of electric force, for it is the strength of an electric field at that point where a small conductor carrying a unit charge is acted upon by unit mechanical force, assuming the dielectric constant of the surrounding medium to be unity.

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  • In the same manner, if an electrified body carries a positive charge Q electrostatic units and is placed in an electric field at a place where the electric force or electromotive intensity has a value E units, it is urged in the direction of the electric force with a mechanical force equal to QE dynes.

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  • The potential of a conductor has already been defined as the mechanical work which must be done to bring up a very small body charged with a unit of positive electricity from the earth's surface or other boundary taken as the place of zero potential to the surface of this conductor in question.

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  • It has been shown that this behaviour of dielectrics can be imitated by a mechanical model consisting of a series of perforated pistons placed in a tube of oil with spiral springs between each piston.

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  • The superiority of the empire was a mechanical one, and during the two centuries or so that the exarchate lasted it lost ground.

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  • The name thermodynamics is given to that branch of the general science of Energetics which deals with the relations between thermal and mechanical energy, and the transformations of heat into work, and vice versa.

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  • The converse process of the transformation of heat into mechanical work or other forms of energy is subject to limitations.

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  • The remainder is equivalent to the external work, W, done by the body in expanding or otherwise, which can be utilized for mechanical purposes, and ceases to exist as heat in the body.

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  • Mayer (1842) made this assumption in calculating the mechanical equivalent of heat.

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  • Joule (1845) was the first to prove it approximately by direct experiment, but did not see his way to reconcile Carnot's principle, as stated by Clapeyron, with the mechanical theory.

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  • Clausius (1850), applying the same assumption, deduced the same value of F'(t), and showed that it was consistent with the mechanical theory and Joule's experiments, but required that a vapour like steam should deviate more considerably from the gaseous laws than was at that time generally admitted.

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  • If mechanical work or kinetic energy is directly converted into heat by friction, reversal of the motion does not restore the energy so converted.

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  • For fuller details and explanations of the elements of the subject, the reader must be referred to general treatises such as Baynes's Thermodynamics (Oxford), Tait's Thermodynamics (Edinburgh), Maxwell's Theory of Heat (London), Parker's Thermodynamics (Cambridge), Clausius's Mechanical Theory of Heat (translated by Browne, London), and Preston's Theory of Heat (London).

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  • These are the only certain examples of natural combinations of the metal, the minute, though economically valuable, quantity often found in pyrites and other sulphides being probably only present in mechanical suspension.

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  • The foreign whites alone constituted 10.4% of the total number of persons engaged in agricultural pursuits; 11.4% of those in professional services; 2 5.7% in domestic and personal services; 19.2% in trade and transportation; and 30.6% of those engaged in manufacturing and mechanical industries.

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  • In addition to these, the native whites of foreign parentage constituted, in agriculture, &c., Io 6%; in professional service, 20.6%; in domestic and personal service, 16.4%; in trade and transportation, 25.7% in manufacturing and mechanical, 25.4% of all those engaged in those occupations.

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  • The people nominally profess the Buddhist religion, but in reality their religious exercises are confined to the propitiation of evil spirits, and the mechanical recital of a few sacred sentences.

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  • The National Physical Laboratory, for making scientific investigations of industrial importance, and for mechanical testing, was opened in Bushey House in 1902.

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  • Fraunhofer, however, did not execute this wish, on the ground that the mechanical difficulties were too great.

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  • In the main roads to the pit when the distance is not considerable horse traction may be used, a train of 6 to i 5 vehicles being drawn by one horse, but more generally the hauling or, as it is called in the north of England, the leading of the trains of tubs is effected by mechanical traction.

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  • Such a circulation of air can only be effected by mechanical means when the workings are of any extent, the methods actually adopted being - (i) The rarefaction of the air in the upcast pit by a furnace placed at the bottom; and (2) Exhaustion by machinery at the surface.

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  • Mechanical ventilation may be effected either by direct exhaustion or centrifugal displacement of the air to be removed.

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  • The drawing or winding of the coal from the pit bottom to the surface is one of the most important operations in coal mining, and probably the department in which winding mechanical appliances have been brought to the highest state of development.

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  • In spring dynamometers designed to measure a transmitted torque, the mechanical problem of ascertaining the change of form of the spring is complicated by the fact that the spring and the whole apparatus are rotating together.

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  • In this way the effective horse-power and also the mechanical efficiency of a number of large marine engines, each of several thousand horse-power, have been determined.

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  • The nominal amount of the public debt on the 1st of September 1908 was $3,989,400, but the figures are misleading, because, with the exception of $22,000 (held partly by counties), all of these obligations were in the permanent school fund or in funds for the University, the Agricultural and Mechanical College, and the various charitable institutions.

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  • In comparison with its other industries it stands also pre-eminently as an agricultural state; for of its 789,404 labourers in 1900, 371,604, or 47%, were engaged in agriculture, 129,006 being engaged in trade and transportation, and 124,803 in manufactures and mechanical pursuits.

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  • If the volume of the gas is kept constant, we put dv=o in equation (18) and dQ = JC0NmdT, where C v is the specific Specific heat of the gas at constant volume and J is the mechanical equivalent of heat.

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  • He maintained that old prejudices would disappear with the progress of knowledge, and that superstition and mechanical devices of salvation would be insensibly abandoned.

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  • Suffice it to say that in spite of its spiritualistic starting-point its general result was to give a stimulus to the prevailing scientific tendency as represented by Galileo, Kepler and Harvey to the principle of mechanical explanations of the phenomena of the universe.

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  • In continental philosophy the reaction against mechanical and pantheistic explanations of the universe found even more definite utterance than in English psychological.

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  • In interpreting its environment first as a world of things that seem to stand in a relation of exclusion to one another and to itself, then as a natural system governed by rigid mechanical necessity, the mind can yet feel that in its very opposition the world is akin to it, bone of its bone and flesh of its flesh.

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  • Even the resultant of mechanical forces refuses to resolve itself into its constituents.

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  • Of males (1,097, 581) engaged in 1900 in gainful occupations 47.1% were engaged in manufacturing and mechanical pursuits (77.9 in every loo in 1870 and 73 in 1900), 27.1 in trade and transportation, 14.2 in domestic and personal service, 7.4 in agricultural pursuits and 4.2 in professional service.

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  • When the war broke out it was her troops who first received hostile fire in Baltimore, and turning their mechanical training to account opened the obstructed railroad to Washington.

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  • His sympathies, however, were always with mechanical and scientific pursuits, and several of his inventions date from a time anterior to his final abandonment of the law.

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  • The subject received little attention in the United Kingdom, owing to the relatively high cost of home-produced alcohol as compared with that of imported petrol; and the use of alcohol in England for generating mechanical power was neither contemplated nor provided for by the Legislature before 1920, when, as the result of the consideration of the position by the Government, following on a report by a Departmental Committee appointed towards the end of 1918, clauses were inserted in the Finance Act of 1920 legalizing the use of alcohol for power purposes.

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  • Capture begins among the lower tribes with the hand, without devices, developing knack and skill in seizing, pursuing, climbing, swimming, and maiming without weapons; and proceeds to gathering with devices that take the place of the hand in dipping, digging, hooking and grasping; weapons for striking, whether clubs, missiles or projectiles; edged weapons of capture, which were rare in America; piercing devices for capture, in lances, barbed spears, harpoons and arrows; traps for enclosing, arresting and killing, such as pens, cages, pits, pen-falls, nets, hooks, nooses, clutches, adhesives, deadfalls, impalers, knife traps and poisons; animals consciously and unconsciously aiding in capture; fire in the form of torches, beacons, burning out and smoking out; poisons and asphyxiators; the accessories to hunting, including such changes in food, dress, shelter, travelling, packing, mechanical tools and intellectual apparatus as demanded by these arts.

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  • The reduction of friction by improved mechanical arrangements, and the introduction of electric firing, enabled the layer not only to train and elevate the gun himself, but also to fire it the moment it was truly " on " the target.

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  • There are mechanical works, match factories and stockinet factories, and a mineral spring rich in iron, the water of which is bottled for export.

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  • In regard to the purification of water, filtration was long looked upon as merely a mechanical process of straining out the solid particles, whereby a turbid water could be rendered clear.

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  • The constancy of composition shown by repeated analyses of atmospheric air led to the view that it was a chemical compound of nitrogen and oxygen; but there was no experimental confirmation of this idea, and all observations tended to the view that it is simply a mechanical mixture.

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  • In the course of ages every detail has been brought under a formal set of rules, which only need mechanical application.

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  • That these purely mechanical arrangements have any psychic, occult or predictive meaning is a fantastic imagination, which seems to have a peculiar attraction for certain types of mind, and as there can be no fundamental hypothesis of correlation, its discussion does not lie within the province of reason.

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  • Orebro is in close connexion with the iron-mining district of central Sweden; it has mechanical works and a technical college.

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  • According to Proclus, a man named Hippias, probably Hippias of Elis (c. 460 B.C.), trisected an angle with a mechanical curve, named the quadratrix.

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  • All these solutions were condemned by Plato on the ground that they were mechanical and not geometrical, i.e.

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  • The pursuit of mechanical methods furnished a stimulus to the study of mechanical loci, for example, the locus of a point carried on a rod which is caused to move according to a definite rule.

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  • The State College of Washington (1890) at Pullman, for instruction in agriculture, mechanical arts and natural sciences, includes an agricultural college, an experiment station and a school of science.

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  • Apart from a growing import trade in coal and machinery, its commerce has declined; but it is among the first twelve manufacturing places in Sweden, having large mechanical workshops.

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  • A plan of teaching him Greek by some kind of mechanical arrangement is not very intelligible, and was quite unsuccessful.

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  • A particular tendency to arrange history according to a mechanical rule appears in the constant endeavour to show that recompense and retribution followed immediately on good or bad conduct, and especially on obedience or disobedience to prophetic advice.

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  • It may be also described as a type of the mechanical or juridical theory of sovereignty.

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  • A good many years later he was entrusted by the committee of the British Association on standards of electric resist ance with the task of deducing the mechanical equivalent of heat from the thermal effects of electric currents.

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  • The first thing noticeable about him is that he defies all customary and mechanical classification.

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  • There are schools for higher education at Batavia, Surabaya and Semarang; at the first two of these towns are government schools for mechanical engineering, and at Batavia a crafts school and a medical school for natives.

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  • Private mechanical and crafts schools are established at Jokjakarta, Surabaya and Semarang, and there is an agricultural school at Buitenzorg.

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  • Although, however, gravitation has formed the most perfect instance of an influence completely expressible, up to the most extreme refinement of accuracy, in terms of laws of direct action across space, yet, as is well known, the author of this ideally simple and perfect theory held the view that it is not possible to conceive of direct mechanical action independent of means of transmission.

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  • They were content with a knowledge of the truth of the principle of gravitation; instead of essaying to explain it further by the properties of a transmitting medium, they in fact modelled the whole of their natural philosophy on that principle, and tried to express all kinds of material interaction in terms of laws of direct mechanical attraction across space.

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  • The problem is whether we can represent the facts more simply by supposing the intervening space to be occupied by a medium which transmits physical actions, after the manner that a continuous material medium, solid or liquid, transmits mechanical disturbance.

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  • The evidence for this view, that all these agencies are at bottom connected together and parts of the same scheme, was enormously strengthened during the latter half of the 19th century by the development of a relation of simple quantitative equivalence between them; it has been found that we can define quantities relating to them, under the names of mechanical energy, electric energy, thermal energy, and so on, so that when one of them disappears, it is replaced by the others to exactly equal amount.

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  • Thus, if we are treating of energy, we can separate out mechanical and electric and other constituents in it; and there will be a residue of which we know nothing except its quantity, and which we call thermal.

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  • MacCullagh's hands the correct equations were derived from a single energy formula by the principle of least action; and while the validity of this dynamical method was maintained, it was frankly admitted that no mechanical analogy was forthcoming.

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  • The most fundamental experimental confirmation that the theory of the aether has received on the optical side in recent years has been the verification of Maxwell's proposition that radiation exerts mechanical force on a material system, on which it falls, which may be represented in all cases as the resultant of pressures operating along the rays, and of intensity equal at each point of free space to the density of radiant energy.

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  • The ritual had a mechanical character and was by no means attractive.

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  • The second volume (1817) relates to the Eulerian integrals, and to various integrals and series, developments, mechanical problems, &c., connected with the integral calculus; this volume contains also a numerical table of the values of the gamma function.

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  • Christiansand is an important fishing centre (salmon, mackerel, lobsters), and sawmills, wood-pulp factories, shipbuilding yards and mechanical workshops are the principal industrial works.

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  • This provides for taking water from the Ohio river at a point on the Kentucky side opposite the village of California, Ohio, and several miles above the discharge of the city sewers; for the carrying of the water by a gravity tunnel under the river to the Ohio side, the water being thence elevated by four great pumping engines, each having a daily capacity of 30,000,000 gallons, to settling basins, being then passed through filters of the American or mechanical type, and flowing thence by a gravity tunnel more than 4 m.

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  • The technical services, in which the mechanical skill and ingenuity of the American had full play, developed remarkable efficiency.

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  • Mines, torpedoes and submarines were all employed, and with the "Monitor" may fairly be said to have begun the application of mechanical science to the uses of naval war.

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  • What was formerly the State Agricultural and Mechanical College at Lexington became the State University by legislative enactment (1908) there is no tuition fee except in the School of Law.

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  • We may assume that like the practice of the soothsaying priest (the earlier type of priest) and of the Izosem (diviner), so the procedure of the roeh was mechanical and magical in character.

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  • In this philosophy the mystical properties of numbers are a leading feature; absurd and mechanical notions are glossed over with the sheen of sacramental mystery; myths are explained by pious fancies and fine-sounding pietistic reflections; miracles, even the most ridiculous, are believed in, and miracles are wrought.

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  • In 1617 he published a small work entitled Rabdologia relating to mechanical methods of performing multiplications and divisions, and in the same year he died.

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  • He personally sought to demonstrate such origin, first, in the existence of a specific internal growth force, which he termed bathmic force, and second in the direct inheritance of acquired mechanical modifications of, the teeth and feet.

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  • During the last two decades of the 19th century the number of inhabitants engaged in agricultural pursuits decreased from 45,122 to 38,782; and the number engaged in manufacturing and mechanical pursuits increased from 57,283 to 75,945.

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  • Properties of the limagon may be deduced from its mechanical construction; thus the length of a focal chord is constant and the normals at the extremities of a focal chord intersect on a fixed circle.

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  • Bouillier (1813-1899), which makes life, or life and mind, the directive principle in evolution and growth, holding that all cannot be traced back to chemical and mechanical processes, but that there is a directive force which guides energy without altering its amount.

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  • Certain actions being admittedly automatic, Descartes maintained that, in regard of the lower animals, all action is purely mechanical.

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  • The same theory has since been applied to man, with this difference that, accompanying the mechanical phenomena of action, and entirely disconnected with it, are the phenomena of consciousness.

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  • The word is also applied to many mechanical devices by which raw material is transformed into a condition ready for use or into a stage preparatory to other processes, e.g.

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  • This is the port for a considerable coal-mining district, and its harbour, on the south side of the river, is provided with mechanical appliances for shipping coal.

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  • Moreover, whatever the rocky understructure, the till soil has been averaged by a thorough mechanical mixture of rock grindings; hence the prairies are continuously fertile for scores of miles together.

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  • He has also the almost mechanical function of representing the state for various formal purposes, such as demanding from other states the extradition of offenders, the issuing of writs for the election of members of the legislature and of members of the Federal House of Representatives, and the receiving of reports from various state officials or boards.

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  • It should comprise a mill, a bakehouse, stables and cow-houses, together with accommodation for carrying on all necessary mechanical arts within the walls, so as to obviate the necessity of the monks going outside its limits.

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  • The calculator's work having now become easier and more mechanical, calculation went on apace.

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  • The use of mechanical refrigerating plants for chilling the pork has made it practicable to cure the bacon with the use of a small percentage of salt, leaving it mild in flavour when delivered in European markets.

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  • The government offered subventions to those who would provide cold-storage warehouses at various points where these were necessary, and also arranged with the owners of ocean steamships to provide cold-storage chambers on them by means of mechanical refrigerators.

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  • The adductor muscles placed in the concavity of the shells act upon the long arms of the lever at a mechanical advantage; their contraction keeps the shells shut, and stretches the ligament or spring h.

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  • The mechanical result of the concrescence of the outer lamellae to the mantle-flap, and of the inner lamellae to one another as shown' in section D, fig.

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  • Had the copies made of ancient writings been mechanical reproductions of the originals, such as the photographic facsimiles of modern times, there would have been little here for textual criticism to do.

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  • This is very common in half intelligent or half mechanical copying.

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  • Paradoxical as it may seem, the mechanical corruptions of a stupid but faithful copyist may tell us more than the intelligent copyings of a less faithful one.

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  • But God is no mechanical mover.

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  • Its principal industrial establishments are mechanical works (both in the city and at Lundby), saw-mills, dealing with the timber which is brought down the Gota, flour-mills, margarine factories, breweries and distilleries, tobacco works, cotton mills, dyeing and bleaching works (at Levanten in the vicinity), furniture factories, paper and leather works, and shipbuilding yards.

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  • The mouth blowpipe is unsuitable for the production of a large flame, and cannot be used for any lengthy operations; hence recourse must be made to types in which the air-blast is occasioned by mechanical means.

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  • In 1906-1907 eleven agricultural and mechanical arts colleges were established, one in each congressional district of the state.

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  • Affiliated with the university, but not receiving state funds, are three preparatory schools, the South Georgia Military and Agricultural College at Thomasville, the Middle Georgia Military and Agricultural College at Milledgeville, and the West Georgia Agricultural and Mechanical College at Hamilton.

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  • A great obstacle to the development of the port is the absence of modern mechanical appliances for loading and unloading vessels, and of quay space and dock accommodation.

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  • In this water the cocoons are kept stirring by small brushes rotated by mechanical means, and as the silk softens the brushes gradually rise out of the water, bringing entangled with them the loose floss, and thereby revealing the main filament of each cocoon.

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  • And these now rare and coveted pieces remain to rebuke us for our modern preference for the mechanical and unnatural chiaroscuro of photogravure - the successor and destroyer of the graver's art.

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  • In Europe it is raised less for bread than for mechanical purposes; the panicles are made into the so-called rice-brooms and into brushes.

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  • The mechanical idea, named the parallelogram of velocities, permits a ready and easy graphical representation of these facts.

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  • We must now inquire a little more closely into the mechanical conception of radiation.

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  • A spectroscope may be compared to a mechanical harmonic analyser which when fed with an irregular function of one variable represented by a curve supplies us with the sine curves into which the original function may be resolved.

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  • This analogy is useful because the application of Fourier's analysis to the optical theory of spectroscopes has been doubted, and it may be urged in answer to the objections raised that the instrument acts in all respects like a mechanical analyser,' the applicability of which has never been called into question.

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  • The discussion as to the causes of this widening has turned a good deal on the question whether it is primarily due to changes of density, pressure or temperature, but some confusion has been caused by the want of proper definition of terms. For the cause of this the writer of the present article is jointly with others at any rate partly responsible, and clearness of ideas can only be re-established by investigating the mechanical causes of the effect rather than by applying terms which refer to a different order of physical conceptions.

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  • It would probably not be difficult to imagine a mechanical system having a number of free periods which when set into motion by a forced vibration shows a corresponding effect.

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  • From the first the lad had taken an extraordinary interest in the technical and mechanical arts, and their application to military and naval science.

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  • The Lahainaluna Seminary on west Maui, founded in 1831 as a training school for teachers, furnishes instruction to Hawaiian boys in agriculture, carpentry, printing and mechanical drawing.

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  • He finally arrived at the conclusion that Condillac's notion of passive receptivity as the one source of conscious experience was not only an error in fact but an error of method - in short, that the mechanical mode of viewing consciousness as formed by external influence was fallacious and deceptive.

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  • The "class of usefulness" was divided into three groups, agricultural, mechanical and educational, with such subdivisions as necessity dictated, and an exact account of labour was kept.

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  • Alford was a not inconsiderable artist, as his picture-book, The Riviera (1870), shows, and he had abundant musical and mechanical talent.

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  • No real advance in metaphysics can take place, and natural science itself is in some danger, until the true history of the evidences of the laws of mechanical force is restored; and then it will soon appear that in the force of collision what we know is not material points determining one another's opposite accelerations, but bodies by force of impenetrable pressure causing one another to keep apart.

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  • Tremendous forces have been at work, suggesting earthquakes and eruptions; but really all is due to the chemical and mechanical action of water.

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  • They are also fitted with different forms of suspension in which the compass is mounted to obviate the mechanical disturbance of the card caused by the vibration of the hull in ships driven by powerful engines.

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  • Instead of observing the deviation solely for the purposes of correcting the indications of the compass when disturbed by the iron of the ship, the practice is to subject all deviations to mathematical analysis with a view to their mechanical correction.

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  • Here we get the link with physics and chemistry alluded to above, which is obtained by the recognition of new forms of energy, interchangeable with what may be called mechanical energy, or that associated with sensible motions and changes of configuration.

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  • For the substantial publication of these researches reference must be made to the Transactions of the Royal Society; but an account of many of them was incorporated in his best-known books, namely, the famous Heat as a Mode of Motion (1863; and later editions to 1880), the first popular exposition of the mechanical theory of heat, which in 1862 had not reached the textbooks; The Forms of Water, &c. (1872); Lectures on Light (1873); Floating Matter in the Air (188x); On Sound (1867; revised 1875, 1883, 1893).

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  • The town is regularly built, with wide streets, some of them lined with trees, and is a wealthy town, which has become an industrial centre for the region especially on account of its steam flour-mills, in which it is second only to Odessa, its distilleries, mechanical workshops, tobacco and tallow factories and brickworks.

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  • His labours were chiefly in the field of descriptive geometry, with its application to the arts and mechanical engineering.

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  • To facilitate this mechanical lifting, gear is provided which is readily controlled, and can raise or lower the periscope at a speed approaching 25 ft.

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  • It is owing to the power of disintegrating by both mechanical and chemical means the rocks on which they are growing that lichens play such an important part in soil-production.

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  • Hudson Taylor in 1853 went to China as the agent of a number of folk in England who feared that missionary work was becoming too mechanical.

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  • Part I.-Principles Or Science Of Horticulture Horticulture, apart from the mechanical details connected with the maintenance of a garden and its appurtenances, may be considered as the application of the principles of plant physiology to the cultivation of plants from all parts of the globe, and from various altitudes, soils and situations.

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  • The best way of performing transplantation depends greatly on the size of the trees, the soil in which they grow, and the mechanical appliances made use of in lifting and transporting them.

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  • Means of affording ventilation in all plant houses should be provided in at least two places - as near the floor as practicable, and at the top. Mechanical contrivances whereby whole sets of ventilators may be operated simultaneously are now in common use, and are much more convenient and economical than the older method of working each ventilator separately.

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  • Vegetable refuse of all kinds, when smother-burned in a similar way, becomes a valuable mechanical improver of the soil; but the preferable course is to decompose it in a heap with quicklime and layers of earth, converting it into leaf-mould.

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  • These operate by electrostatic induction and convert mechanical work into electrostatic energy by the aid of a small initial charge which is continually being replenished or reinforced.

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  • These variations in the properties of iron are brought about in part by corresponding variations in mechanical and thermal treatment, by which it is influenced profoundly, and in part by variations in the proportions of certain foreign elements which it contains; for, unlike most of the other metals, it is never used in the pure state.

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  • The rapid advance in mechanical engineering in the latter part of this second period stimulated the iron industry greatly, giving it in 1728 Payn and Hanbury's rolling mill for rolling sheet iron, in 1760 John Smeaton's cylindrical cast-iron bellows in place of the wooden and leather ones previously used, in 1783 Cort's grooved rolls for rolling bars and rods of iron, and in 1838 James Nasmyth's steam hammer.

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  • Thus the distinctive work of the second and third periods is freeing the metal from mechanical impurities by fusion.

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  • Just as a granite is a conglomerate or mechanical mixture of distinct crystalline grains of three perfectly definite minerals, mica, quartz, and felspar, so iron and steel in their usual slowly cooled state consist of a mixture of microscopic particles of such definite quasiminerals, diametrically unlike.

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  • This removal of graphite doubtless further stimulates the formation of graphite, by relieving the mechanical and perhaps the osmotic pressure.

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  • Steel castings have initially the extremely coarse structure due to cooling without mechanical distortion from their very high temperature of solidification; they are " annealed," i.e.

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  • But, intermediate in richness between these two extremes, the iron ores mined to-day and these 2 and 3% ores, there is an incalculably great quantity of ore capable of mechanical concentration, and another perhaps vaster store of ore which we do not yet know how to concentrate mechanically, so that the day when a pound of iron in the ore will cost as much as a pound of copper in the ore costs to-day is immeasurably distant.

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  • The shaping processes include the mechanical ones, such as rolling, forging and wire-drawing, and the remelting ones such as the crucible process of melting wrought iron or steel in crucibles and casting it in ingots for the manufacture of the best kinds of tool steel.

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  • As soon as a hot billet A is withdrawn by pushing it endwise out of the exit door B, the whole row is pushed forward by a set of mechanical pushers C, the billets sliding on the raised water-cooled pipes D, and, in the hotter part of the furnace, on the magnesite bricks E, on which iron slides easily when red-hot.

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  • These principles of association determine the imagination to combine ideas in various modes, and by this mechanical combination Hume, for a time, endeavoured to explain what are otherwise called judgments of relation.

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  • He saw all the mechanical difficulties that had to be overcome in mining; he learned the nature and succession of rocks, the physical properties of minerals, ores and metals; he got a notion of mineral waters; he was an eyewitness of the accidents which befel the miners, and studied the diseases which attacked them; he had proof that positive knowledge of nature was not to be got in schools and universities, but only by going to nature herself, and to those who were constantly engaged with her.

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  • The largest mechanical works are those of Munktell and Tunafors.

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  • By a deficiency in development of parenchyma and an increase in the mechanical tissue, leaves are liable to become hardened and spinescent.

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  • His scheme was first to work out, in a separate treatise De corpore, a systematic doctrine of Body, showing how physical phenomena were universally explicable in terms of motion, as motion or mechanical action was then (through Galileo and others) understood - the theory of motion being applied in the light of mathematical science, after quantity, the subject-matter of mathematics, had been duly considered in its place among the fundamental conceptions of philosophy, and a clear indication had been given, at first starting, of the logical ground and method of all philosophical inquiry.

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  • They are now broken apart and sorted by mechanical sifters into the various grades or qualities, which are described as Orange Pekoe, Pekoe, Pekoe Souchong and Souchong, each of which names represents approximately the leaf-bud and the three lower leaves.

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  • The machinery in use is very varied in character, and it has been evolved principally by practical planters of a mechanical turn.

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  • The points which require constant attention are - the perfect freedom of all carriers, feeders and drains from every kind of obstruction, however minute; the state and amount of water in the river or stream, whether it be sufficient to irrigate the whole area properly or only a part of it; the length of time the water should be allowed to remain on the meadow at different periods of the season; the regulation of the depth of the water, its quantity and its rate of flow, in accordance with the temperature and the condition of the herbage; the proper times for the commencing and ending of pasturing and of shutting up for hay; the mechanical condition of the surface of the ground; the cutting out of any very large and coarse plants, as docks; and the improvement of the physical and chemical conditions of the soil by additions to it of sand, silt, loam, `` chalk, &c.

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  • He learned practical engineering at Middlesborough-on-Tees, and about 1850 invented a mechanical system for the drainage of land.

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  • Later, he interested himself in the problem of mechanical flight.

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  • He soon made himself known by a variety of useful mechanical inventions, and in 1818 came over to England with a plan for engraving bank-notes on steel, which ultimately proved a signal success, and was carried out by Perkins in partnership with the English engraver Heath.

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  • Experience, however, has shown that even when the movements of the ground are alarming the actual range of motion is so small that a satisfactory record can be obtained only by some mechanical (or optical) method of multiplication.

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  • If we wish to obtain mechanical registration from a horizontal pendulum of the above type, we may minimize the effect of the friction of the writing index - say a glass fibre touching the smoked surface of moderately smooth paper - by using a considerable weight and placing it near to the outer end of the boom.

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  • The town is an important industrial centre, having tobacco and leather factories, electrical and other mechanical works, and breweries.

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  • The explanation of the fact may partly be that the mechanical and other discoveries of the most ingenious minds among them, when not in constant requisition by later generations, were misunderstood or forgotten, and even in other cases were preserved only as rules of thumb by the craftsmen and experts, who would jealously hide them as secrets of trade.

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  • Prehistoric.The earliest civilized population of Egypt was highly skilled in mechanical accuracy and regularity, but had little sense of organic forms. They kept the unfinished treatment of the limbs and extremities which is so characteristic of most barbaric art; and the action was more considered than the form.

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  • And soon after, under Rameses II., mere mechanical copying, hard lifeless routine of stone-cutting, regardless of truth and of nature, dominated the whole.

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  • This property is the liberation of some of the energy contained in the chemical compounds of the cells in such a way as to give mechanical work.

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  • The mechanical work is obtained by movement resulting from a change, it is supposed, in the elastic tension of the framework of the living cell.

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  • The tetanic or summed contractions are more extensive than the simple, both in space and time, and liberate more energy, both as mechanical work and heat.

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  • It is a brief extension of the limb at the knee-joint, due to a simple contraction of the extensor muscle, elicited by a tap or other short mechanical stimulus applied to the muscle fibres through the tendon of the muscle.

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  • Rock-salt when pure is colourless and transparent, but is usually red or brown by mechanical admixture with ferric oxide or hydroxide.

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  • The second year is devoted to dogmatic (kalam and tawhid), taught in the same mechanical way.

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  • Most of the mechanical contrivances which made Tycho Brahe's instruments so superior to those of his contemporaries were adopted at Cassel about 1584, and from that time the observations made there seem to have been about as accurate as Tycho's; but the resulting longitudes were 6' too great in consequence of the adopted solar parallax of 3'.

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  • Cements of the Portland type differ in kind from those of the pozzuolanic class; they are not mechanical mixtures of lime and active silica ready to unite under suitable conditions, but consist of definite chemical compounds of lime and silica and lime and alumina, which, when mixed with water, combine therewith, forming crystalline substances of great mechanical strength, and capable of adhering firmly to clean inert material, such as stone and sand.

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  • The quality of Portland cement is ascertained by its analysis and by determining its specific gravity, fineness, mechanical strength Tesfing.

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  • The college now grants the degrees of "Bachelor of Arts," "Cultural Bachelor of Science" and "Vocational Bachelor of Science"; the Department of Graduate Studies, the degrees of "Graduate in a School," "Master of Arts," "Master of Science" and "Doctor of Philosophy"; the Department of Law, the degree of "Bachelor of Laws"; the Department of Medicine, the degree of "Doctor of Medicine"; the Department of Engineering, the degrees of "Civil Engineer," "Mechanical Engineer," "Electrical Engineer," "Mining Engineer" and "Chemical Engineer"; and the Department of Agriculture, the degree of "Bachelor of Science in Agriculture."

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  • In addition to publishing a number of works on geometrical and mechanical subjects, Poinsot also contributed a number of papers on pure and applied mathematics to Lionville's Journal and other scientific periodicals.

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  • Any philosophy of history which emphasized the importance of general causes seemed to him to imply a simply mechanical doctrine and to deny the efficacy of the great spiritual forces.

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  • Many of the most important improvements in the construction of ships, especially steam vessels, are due to the enterprise and skill of the Clyde shipbuilders, who, from the time of Robert Napier of Shandon (1791-1876), who built and engined the first steamers for the Cunard Company, formed in 1840, have enjoyed an unrivalled reputation for the construction of leviathan liners, both as regards mechanical appliances and the beauty and convenience of the internal arrangements.

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  • He appeared to believe, however, that the successive variations and modifications had arisen in response to mechanical laws of the organisms themselves rather than to the influence of their surroundings.

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  • Bateson is pre-eminent, would appear to simplify the problem of variation, especially on its mechanical and physiological sides.

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  • It is not known precisely when the mechanical device of the rosary was first used.

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  • In 1900 more than seven-tenths of the inhabitants in gainful occupations were engaged in agriculture (25.6%), manufactures and mechanical pursuits (26.7%), and trade and transportation (22%).

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  • If our increased appreciation and knowledge of Greek and Roman art makes us at times impatient with the mechanical perfection of the works of Wedgwood and his contemporaries, the fault is even more the fault of a nation and a period than that of any individual, however com - manding.

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  • Many other forms of heliostats have been designed, the chief difference consisting in the mechanical devices for maintaining the constant direction of the reflecting ray.

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  • From Byzantium the special skill in this art was transmitted in the 9th and 10th centuries to the Rhenish provinces of Germany and to Italy, and thence to the whole of western Europe; in this way the 18th century smith who wrought the Hampton Court iron gates was the heir to the mechanical skill of the ancient metalworkers of Phoenicia and Greece.

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  • More mechanical in execution, though still very rich in effect, is that sort of iron tracery work produced by cutting out patterns in plate, and superimposing one plate over the other, so as to give richness of effect by the shadows produced by these varying planes.

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  • The introduction of gas as an illuminant, about 1816, at once induced a large demand and a novel description of metal fitting; and the craft fell under the control of a new commercial class, intent on breaking with past traditions, and utilizing steam power, electro-deposition, and every mechanical and scientific invention tending to economize metal or labour.

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  • Much light has been thrown on facts which have long been known in a practical way, by the labours of the Alloys Research Committee of the Institution of Mechanical Engineers (England).

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  • The process is carried out either in hand-wrought furnaces,or mechanical furnaces, both called " decomposing " or " salt-cake furnaces."

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  • Since the work with ordinary hand-wrought salt-cake furnaces is disagreeable and costly, many attempts have been made to construct mechanical salt-cake furnaces.

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  • There is only a slight mechanical loss, which is reduced in the best managed works to about parts of manganese dioxide to ioo of bleachingpowder.

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  • These mechanical furnaces do the work of from four to ten ordinary furnaces according to their size, with comparatively very little expense for labour, but they must be very carefully managed and the black-ash from them is more difficult to lixiviate than that from hand-wrought furnaces, because it is less porous.

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  • Many, therefore, prefer mechanical stirring by means of paddles, fixed either to a vertical or to a horizontal shaft, and inject only sufficient steam to keep the mass at the proper temperature.

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  • He managed to make practical use of his calculus about his farms, and seems to have been remarkably apt in the practical application of mechanical principles.

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  • He did not attempt the formation of a parabolic figure on account of the probable mechanical difficulties, and he had besides satisfied himself that the chromatic and not the spherical aberration formed the chief faults of previous telescopes.

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  • Further, by causing the hour circle, and with it the polar axis, to rotate by clockwork or some equivalent mechanical contrivance, at the same angular velocity as the earth on its axis, but in the opposite direction, the telescope will, apart from the effects of refraction, automatically follow a star from rising to setting.

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  • The driving circle is also much too small, so that a very slight mechanical freedom of the screw in the teeth involves a large angular freedom of the telescope in right ascension, while its position at the lower end of a too weak polar axis tends to create instability from torsion of that axis.

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  • In all these types the longer the telescope and the greater its diameter (or weight) the more massive must be the mounting and the greater the mechanical difficulties both in construction and management.

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  • The motors were practically useless on account of mechanical defects and were abandoned early in the great march.

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  • The international position of the Ottoman empire was strengthened by the able, if Machiavellian, statecraft of the sultan; while the danger of disruption from within was lessened by the more effective central control made possible by railways, telegraphs, and the other mechanical improvements borrowed from western civilization.

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  • The two most important varieties of the method are (a) mechanical, and (b) electrical.

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  • These methods have reached their highest development in connexion with the determination of the mechanical equivalent of heat, but they may be applied with great advantage in connexion with other problems, such as the measurement of the variation of specific heat, or of latent heats of fusion or vaporization.

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  • The phrase " mechanical equivalent of heat" is somewhat vague, but has been sanctioned by long usage.

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  • It is generally employed to denote the number of units of mechanical work or energy which, when completely converted into heat without loss, would be required to produce one heat unit.

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  • The numerical value of the mechanical equivalent necessarily depends on the particular units of heat and work employed in the comparison.

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  • The Value Of The International Electrical Units Has By This Time Been So Accurately Determined In Absolute Measure That They Afford A Very Good, Though Indirect, Method Of Determining The Mechanical Equivalent Of Heat.

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  • In Any Case The Value Of The Mechanical Equivalent Is Uncertain To At Least I In 2000.

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  • Newton did indeed first show synthetically what kind of motions by mechanical laws have their ground in a centripetal force varying inversely as the square of the distance (all P is M); but his next step was, not to deduce synthetically the planetary motions, but to make a new start from the planetary motions as facts established by Kepler's laws and as examples of the kind of motions in question (all S is P); and then, by combining these two premises, one mechanical and the other astronomical, he analytically deduced that these facts of planetary motion have their ground in a centripetal force varying inversely as the squares of the distances of the planets from the sun (all S is M).

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  • An aggregate analysed into its mechanical parts is as much and as little known as they.

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  • Where new conceptions emerge, the imperfection of the instruments, mechanical and methodological, of the sciences renders them unfruitful, until their rediscovery in a later age.

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  • It is a mechanical combination of propositions as these of terms which are counters to express concepts often ill-defined.

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  • Employing Joule's value of the mechanical equivalent of heat, then recently published, in connexion with the value of the ratio of the specific heats of air S/s=I.

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  • The university was chartered in 1866; it embraces a school of technology, with courses in civil, mechanical, metallurgical, mining, electrical and chemical engineering, electrometallurgy and chemistry, and a school of general literature (1878), with classical and Latin-scientific courses.

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  • The principal buildings of the university are Packer Hall (1869), largely taken up by the department of civil engineering, the chemical and metallurgical laboratory, the physical and electrical engineering laboratory, the steam engineering laboratory, Williams Hall for mechanical engineering, &c., Saucon Hall for the English department, Christmas Hall, with drawing-rooms and the offices of the Y.M.C.A., the Sayre astronomical observatory, the Packer Memorial Church, the university library (1897), dormitories (1907) given by Andrew Carnegie, Drown Memorial Hall, a students' club, the college commons, and a gymnasium.

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  • Also under state control are the home for care and training of feeble-minded children, at Eldridge, Sonoma county; the institution for the deaf and the blind at Berkeley, and the home of mechanical trades for the adult blind at Oakland.

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  • Within the town the arcades (or Lauben) on either side of the main street, and the numerous elaborately ornamented fountains attract the eye, as well as the two remaining towers that formerly stood on the old walls but are now in the centre of the town; the Zeitglockenthurm (famous for its singular 16th- century clock, with its mechanical contrivances, set in motion when the hour strikes) and the Kdfichthurm.

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  • The college offers four-year courses in agronomy, animal husbandry, dairying, domestic economy, general science, veterinary medicine, and civil, mechanical, electrical and mining engineering.

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  • His idea of revelation depends upon the same mechanical conception of the relation of God to the world which dominates his Natural Theology; and he seeks to prove the divine origin of Christianity by isolating it from the general history of mankind, whereas later writers find their chief argument in the continuity of the process of revelation.

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  • A simple mechanical, illustration is afforded by the pendulum.

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  • This shows that mechanical energy is lost at the rate 2 F per unit time.

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  • The amount and effect of the variations of pressure and temperature undergone by the air depend on the principles of the mechanical action of heat, or THERMODYNAMIcS, and are foreign to the subject of pure mechaifisni.

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  • It is the work, in short, not of artists but of skilled workmen; the ideal artist is " Daeda-us," a name which implies mechanical skill and intricate workmanship, not beauty of design.

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  • The birth of modern physical science on the other hand in the investigations of Bacon and Descartes obscured the metaphysical issue by the predominance of the mechanical principles of natural philosophy.

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  • In some cases purely mechanical means such as the use of Spanish clay or filtration are employed for fining purposes.

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  • Mechanical uniformity and minute regulation are inadequate substitutes for observance of the canons of equality, certainty and economy in the operation of the tax system.

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  • His table of springs of actions shows the same mean-spirited omissions that we notice in his predecessors; he measures the quantity of pleasures by the coarsest and most mechanical tests; and he sets up general pleasure as the criterion of moral goodness.

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  • In place of these straggling efforts of the unassisted human mind, a graduated system of helps was to be supplied, by the use of which the mind, when placed on the right road, would proceed with unerring and mechanical certainty to the invention of new arts and sciences.

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  • His general conception of the universe may therefore be called mechanical or statical; the cause of each phenomenon is supposed to be actually contained in the phenomenon itself, and by a sufficiently accurate process could be sifted out and brought to light.

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  • It is evident that if the tables were complete, and our notions of the respective phenomena clear, the process of exclusion would be a merely mechanical counting out, and would infallibly lead to the detection of the cause or form.

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  • Such was the method devised by Bacon, and to which he ascribed the qualities of absolute certainty and mechanical simplicity.

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  • The mechanical character both of the natural history and of the logical method applied to it, resulted necessarily from Bacon's radically false conception of the nature of cause and of the causal relation.

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  • If_ that power form part of the true method, then the mind is not wholly passive or recipient; it anticipates nature, and moulds the experience received by it in accordance with its own constructive ideas or conceptions; and yet further, the minds of various investigators can never be reduced to the same dead mechanical level.'

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  • He proposed to separate the fibre by purely mechanical means without any retting whatever; but after the Irish Linen Board had expended many thousands of pounds and much time in making experiments and in erecting his machinery, his entire scheme ended in complete failure.

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  • A really good chemical, mechanical or other method would probably be the means of reviving the flax industry in the remote parts of the British Isles.

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  • It is not clear how the first printers struck off their copies, but without doubt Gutenberg did use at an early period in his career a mechanical press of some kind, which was constructed of wood.

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  • The rotary presses in use at the present time are indeed wonderful specimens of mechanical ingenuity, all the various operations of damping (when necessary), feeding, printing (both sides), cutting, folding, pasting, wrapping (when required) and counting being purely automatic. These machines are of various kinds, and are specially made to order so as to cope with the particular class of work in view.

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  • On the other hand, Judaism has never been without its heroes, martyrs or saints, and the fact that it still lives is sufficient to prove that the mechanical legalism of the Talmud has not hindered the growth of Jewish religion.

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  • The radical contrast between mechanical and spiritual religion, though fundamental for modern theology, is alien to the primitive point of view, and is therefore inappropriate to the purposes of anthropological description.

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  • Hand rabbling in fixed furnaces has been largely superseded by mechanical rabbling.

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  • In other furnaces the ore rests on a series of horizontal plates, and either remains on the same plate throughout the operation (0111vier and Perret furnace), or is passed from plate to plate by hand (Maletra), or by mechanical means (Spence and M`Dougall).

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  • The other items of cost are labour, the quantity of which depends on the mechanical appliances provided for handling the converter shells and inserting the lining; and the blast, which in barrel-shaped converters is low and in vertical converters is high, and which varies therefore from 3 to is lb to the square inch.

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  • The dependence of the mechanical qualities of the copper upon the current-density employed is well known.

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  • The success of the mechanical method of spinning and weaving of jute in Dundee and district led to the introduction of textile machinery into and around Calcutta.

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  • Since the distribution of electricity may be considered to be constant over the surface S of the attracted disk, the mechanical force f on it is given by the expression,' f S(V - v)2 8 ird2 where d is the distance between the two plates.

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  • The great mechanical works are found at or near Malmo, Stockholm, JOnkoping, Trollhattan, Motala on Lake Vetter, Lund, Gothenburg, Karlstad, Falun and Eskilstuna, which is especially noted for its cutlery.

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  • The chewed material is then placed in a bowl, and water or coco - nut milk is poured over it, the whole is well stirred, and subsequently the woody matter is removed by an ingenious but simple mechanical manipulation.

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  • The pile of buildings known as the corn warehouses are traversed by a canal which gives access to its several departments, and are provided with mechanical grain-elevators.

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  • In 1869 the institution was removed to Baton Rouge, and in 1877 it was united with the Agricultural and Mechanical College, established in 1873 and in 1874 opened at New Orleans.

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  • Returning to Scotland in 1790, he first settled as a carpenter at Glasgow and afterwards removed to Helensburgh, on the Firth of Clyde, where he pursued his mechanical projects, and also found occasional employment as an engineer.

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  • In consequence of the absence of mechanical stimulant the bowels act more slowly, and constipation is the result.

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  • Where the stomach and bowels are irritable, all food likely to cause mechanical irritation should be avoided, such as skins, bones, fibres and seeds.

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  • Thus the stimulating effect of sea-bathing is more marked than simple salt-water baths, for in addition to the effect upon the skin produced by the salt and by the temperature of the water, we have the quicker removal of heat by the continual renewal of the water as the waves dash over the body, and mechanical stimulus from its weight and impetus.

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  • In 1830, Arago, who always professed liberal opinions of the extreme republican type, was elected a member of the chamber of deputies for the Lower Seine, and he employed his splendid gifts of eloquence and scientific knowledge in all questions connected with public education, the rewards of inventors, and the encouragement of the mechanical and practical sciences.

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  • They have (besides their purely spiritual work) opposed the sale of alcohol, denounced inhumanity from the farmers, encouraged the natives to labour and taught them mechanical arts.

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  • Halifax, however, concludes by desiring to moderate the roughness of his picture by emphasizing the excellence of his intellect and memory and his mechanical talent, by deprecating a too censorious judgment and by dwelling upon the disadvantages of his bringing up, the difficulties and temptations of his position, and on the fact that his vices were those common to human frailty.

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  • The composition of his various satires shows no negligence, but rather excess of elaboration; but it produces the impression of mechanical contrivance rather than of organic growth.

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  • The two active elements interpenetrate the two lower or more relaxed, winding through all parts of matter and so pervading the greater masses that there is no mechanical mixture, nor yet a chemical combination, since both " force " and " matter " retain their relative characters as.

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  • This Reason even non-rational man unconsciously manifests in his mechanical or instinctive actions which tend to the preservation of himself.

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  • The facts of existence, however, are not adequately explained by the mechanical categories.

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  • Systems life Spinozism, which seem to form a third class, neither sacrificing force to thought nor thought to force, yet by their denial of final causes inevitably fall back into the Democritic or essentially materialistic standpoint, leaving us with the great antagonism of the mechanical and the organic systems of philosophy.

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  • Wolf that at ordinary temperatures the latent heat of extension of the surface of water is dynamically equivalent to about half the mechanical work done in producing the surface-extension.

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  • The practical effect of the bactericidal action of solar light is the destruction of enormous quantities of germs in rivers, the atmosphere and other exposed situations, and experiments have shown that it is especially the pathogenic bacteria - anthrax, typhoid, &c. - which thus succumb to lightaction; the discovery that the electric arc is very rich in bactericidal rays led to the hope that it could be used for disinfecting purposes in hospitals, but mechanical difficulties intervene.

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  • And although effects may some times be produced in a mechanical manner by bacteria plugging capillaries of important organs, e.g.

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  • In physics, Descartes had prepared the way for the final triumph of the mechanical explanation of the world in Newton's system.

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  • Everything can be explained by a purely mechanical (but not fortuitous) system, in which there is no room for the idea of a providence or an intelligent cause working with a view to an end.

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  • He occasionally contributed papers to the Albany Institute, in the years 1824 and 1825, on chemical and mechanical subjects; and in the latter year, having been unexpectedly appointed assistant engineer on the survey of a route for a state road from the Hudson river to Lake Erie, a distance somewhat over 300 m., he at once embarked with zeal and success in the new enterprise.

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  • This diversion from his original bent gave him an inclination to the career of civil and mechanical engineering; and in the spring of 1826 he was elected by the trustees of the Albany Academy to the chair of mathematics and natural philosophy in that institution.

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  • In 1835 he combined the short circuit of his monster magnet (of 1834) with the small "intensity" magnet of an experimental telegraph wire, thereby establishing the fact that very powerful mechanical effects could be produced at a great distance by the agency of a very feeble magnet used as a circuit maker and breaker, or as a "trigger" - the precursor of later forms of relay and receiving magnets.

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  • The roasting is carried on in hand and mechanical reverberatory furnaces, and occasionally in muffle-furnaces.

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  • The apparatus for drying ore and salt varies greatly, drying-floors, dry-kilns and continuous mechanical reverberatory furnaces with stationary and revolving hearths being used.

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  • In 1823, when Faraday liquefied chlorine, he read a paper which suggested the application of liquids formed by the condensation of gases as mechanical agents.

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  • Inst., 1867; " On the Mechanical Appliances by which Flight is attained in the Animal Kingdom," by the same author, Trans.

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  • Inst., 1867; " On the Mechanical Appliances by which Flight is attained in the Animal Kingdom," Trans.

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  • The twisting referred to is partly a vital and partly a mechanical act; - that is, it is occasioned in part by the action of the muscles and in part by the greater resistance experienced from the air by the tip and posterior margin of the wing as compared with the root and anterior margin, - the resistance experienced by the tip and posterior margin causing them to reverse always subsequently to the root and anterior margin, which has the effect of throwing the anterior and posterior margins of the wing into figure-of-8 curves, as shown at figs.

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  • The prosperity and great population of the Pennine region date from the discovery that pit-coal could smelt iron as well as charcoal; and this source of power once discovered, the people bred in the dales developed a remarkable genius for mechanical invention and commercial enterprise, which revolutionized the economic life of the world and changed England from an agricultural to an industrial country.

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  • The mechanical properties of the cycloid were investigated by Christiaan Huygens, who proved the curve to be tautochronous.

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  • Gotha is one of the most active commercial towns of Thuringia, its manufactures including sausages, for which it has a great reputation, porcelain, tobacco, sugar, machinery, mechanical and surgical instruments, musical instruments, shoes, lamps and toys.

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  • As to the mechanical conditions of the human body, the upright posture has always been recognized as the chief.

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  • Differences in the mechanical organs, such as the perfection of the human hand as an instrument, or the adaptability of the human voice to the expression of human thought, are indeed of great value.

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  • The employment of mechanical instruments, of which instances of monkeys using sticks and stones furnish the only rudimentary traces among the lower animals, is one of the often-quoted distinctive powers of man.

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  • He was full of new ideas concerning both the laws and the applications of mechanical forces.

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  • From the beginning of his residence with Ludovico his combination of unprecedented mechanical ingenuity with apt allegoric invention and courtly charm and eloquence had made him the directing spirit in all court ceremonies and festivities.

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  • I n mechanical, scientific and theoretical studies of all kinds it was a period, as these MSS.

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  • The pope, indeed, is said to have been delighted with Leonardo's minor experiments and ingenuities in science, and especially by a kind of zoological toys which he had invented by way of pastime, as well as mechanical tricks played upon living animals.

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  • Florence had had other sons of comprehensive genius, artistic and mechanical, Leon Battista Alberti perhaps the chief.

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  • In order to give an adequate account of its subject-matter, psychology may require higher or more complex categories than are employed in the other sciences, just as biology, for example, cannot work with mechanical categories alone, but introduces the conception of development or growth.

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  • The steel used throughout the entire structure should be subjected to the most thorough chemical and mechanical tests and inspection, first at the mill and subsequently at the fabricating shops and the building, ensure that Used.

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  • The curious and varied mechanical arrangements by which these supplies of animal food are obtained and utilized are described under the headings of the more important plants.

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  • The other was a new determination of the mechanical equivalent of heat.

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  • The mechanical skill of the Walachians was found useful by the Turks, who employed them as carpenters and pontonniers; and during the siege of Vienna in 1683 the Walachian contingent, which, under the voivode erban Cantacu zene, had been forced to co-operate with the Turks, was entrusted with the construction of the two bridges over the Danube above and below Vienna.

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  • Del Chiaro notices the great imitative capacity of the race, both artistic and mechanical.

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  • Manufactures.-Manufacturing and mechanical pursuits absorbed in 1900 the labours of 19.5% of all persons engaged in gainful occupations, less than half as many as were engaged in agriculture.

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  • It is useful to form a conception of the mechanical state within the sun's body.

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  • Both these filters arrest the organisms by purely mechanical action, and if the joints are water-tight and they receive proper attention and frequent sterilization, they both give satisfactory results on a small scale for domestic purposes.

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  • Mechanical devices for determining weights or comparing the masses of bodies may be classified as (a) equal-armed balances, (b) unequal-armed balances, (c) spring balances and (d) automatic machines.

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  • The rod which transmits the pull of the long body lever of the platform machine to the knifeedge at the end of the short arm of the steelyard is continued up - wards, and by a simple mechanical arrangement transmits to an upper steelyard any additional pull of the long body lever due to the weight of goods placed on the platform.

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  • Maletra, and mechanical burners, which were formerly almost entirely confined to America, where the saving of labour is a primary consideration.

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  • The first really successful mechanical pyrites-burner was constructed many years ago by MacDougall Bros.

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  • In America, and quite exceptionally also in Europe, mechanical furnaces are used for the roasting of blende.

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  • The gas produced in the burning of sulphur ores, when issuing from the burner, holds in mechanical suspension a considerable quantity of" flue-dust,"which must be removed as far as is practicable before the gas is subjected to further treatment.

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  • The burner gas is introduced at one end, the waste gases issue from the other, the movement of the gases being impelled partly by their own chemical reactions, partly by the draught produced by a chimney (or tower), or by mechanical means.

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  • Ultimately the waste gas is drawn off by a chimney, or sometimes by mechanical means.

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  • The principal features of this invention are, first, a much more thorough purification of the burner-gas than had been practised up to that time, both in a chemical and a mechanical sense, and second, the prevention of superheating of the contact substance, which formerly always occurred by the heat generated in the process itself.

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  • The State University was founded (under the Federal Land Grant Act of 1862) in 1865 as the State Agricultural and Mechanical College, was opened in 1866, and was a college of Kentucky University until 1878.

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  • The university has a College of Agriculture, a College of Arts and Science, a College of Law, a School of Civil Engineering, a School of Mechanical and Electrical Engineering, and a School of mining Engineering.

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  • The worm-wheel shaft then sometimes carries a spur-pinion gear ing with a spur-wheel on the lifting shaft, whereby a much greater mechanical advantage is obtained with a small loss by friction of the spur gearing.

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  • Here he first interpreted the process of digestion, which he proved to be no mere mechanical process of trituration, but one of actual solution, taking place primarily in the stomach, by the action of the gastric juice.

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  • The reputation of the university is particularly high in mechanical engineering; Sibley college was built up primarily under Prof. Robert Henry Thurston (1839-1903), a well-known engineer, its director in 1885-1903.

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  • The regular annual tuition fee is $100, but in medicine, in architecture, and in civil and mechanical engineering it is $150.

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  • He displayed very early a taste and an aptitude for mechanical contrivances.

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  • His mother's brother, William Ayscough, the rector of Burton Coggles, the next parish, was a graduate of Trinity College, Cambridge, and when he found that Newton's mind was wholly devoted to mechanical and mathematical problems, he urged upon Mrs Smith the desirability of sending her son to his own college.

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  • It is impossible that there should be liberty, for if so the mechanical order of phenomena, by means of which they are comprehensible, would be disturbed, and we should have an unintelligible world, coupled with the requirement that it shall be understood.

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  • At last a quinqueradiate symmetry influenced the plates of the theca, partly through the development of a plate at the end of each groove (terminal), partly through plates at the aboral pole of the theca (basals and infrabasals) arising in response to mechanical pressure, but soon intimately connected with the cords of an aboral nervous system.

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  • On the other hand, the still half-heathen world outside broke every moral law with indifference; and in the effort to restrain men's vices church discipline became mechanical instead of sympathetic, penal rather than paternal.

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  • The manufacture and sale of intoxicating liquors except for medical, scientific and mechanical purposes were prohibited by a constitutional amendment adopted in 1880.

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  • The provision of the law permitting the sale of whisky for medicinal, scientific or mechanical purposes was repealed by a law of 1909 prohibiting the sale, manufacture or barter of spirituous, malt, vinous or any other intoxicating liquors within the state.

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  • How he gathered, scholars from the continent, Wales and Ireland; how he collected the old heroic poems of the nation, how he himself translated books from the Latin tongue, started schools, and set his scribes to write up the Anglo-Saxon Chronicle, is told elsewhere, as are his mechanical inventions, his buildings, and his dealings with missionaries and explorers (see ALFRED).

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  • The notions of distance and of lines at right angles are connected with the circular points; and almost every construction of a curve by means of lines of a determinate length, or at right angles to each other, and (as such) mechanical constructions by means of linkwork, give rise to curves passing the same definite number of times through the two circular points respectively, or say to circular curves, and in which the fixed centres of the construction present themselves as ordinary, or as singular, foci.

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  • The influence of literature on Burke lay partly in the direction of emancipation from the mechanical formulae of practical politics; partly in the association which it engendered, in a powerful understanding like his, between politics and the moral forces of the world, and between political maxims and the old and great sentences of morals; partly in drawing him, even when resting his case on prudence and expediency, to appeal to the widest and highest sympathies; partly, and more than all, in opening his thoughts to the many conditions, possibilities and "varieties of untried being," in human character and situation, and so giving an incomparable flexibility to his methods of political approach.

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  • In the floor of the mouth, between the two branches of the lower jaw, and supported behind by the hyoid apparatus, lies the tongue, an organ the free surface of which, especially in its posterior part, is devoted to the sense of taste, but which by reason of its great mobility (being composed almost entirely of muscular fibres) performs important mechanical functions connected with masticating and procuring food.

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  • The gas which is obtained by the destructive distillation of coal, and which we employ as our chief illuminant, is not a definite com pound, but a mechanical mixture of several gases, some Gaseous .

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  • This system shows a greater economy in the cost of carbonizing the coal, but the large outlay and the wear and tear of the mechanical appliances involved have so far prevented its very general adoption.

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  • There are also textile manufactures, paper-factories (on Munksjii), and mechanical works.

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  • The reduction of the outgrowth-bearing " corm " of the parapodium of either a Chaetopod or an Arthropod to a simple cylindrical stump, devoid of outgrowths, is brought about when mechanical conditions favour such a shape.

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  • There are, nevertheless, serious difficulties involved in the supposition that the changes in the brain with which physiology and the biological sciences deal can be satisfactorily explained by the mechanical and mathematical conceptions common to all these sciences, or, indeed, that any of these organic changes is susceptible in the last resort of explanation derived from purely material premises.

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  • The phenomena of life and growth and assimilation have not been satisfactorily explained as mechanical modes of motion, and the fact that identical cerebral movements have not been discovered to recur makes scientific and accurate prediction of future cerebral changes an impossibility.

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  • Meaning, design and purpose are to him terms far more explanatory of his movements in the outer world than the mechanical and mathematical equivalents to which his actions will ultimately be reduced if the sciences should achieve their avowed purpose.

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  • Modern theoretical astronomy, taken in the most limited sense, is based upon Celestial Mechanics, the science by which, using purely deductive mechanical methods, the laws of motion of the heavenly bodies are derived by deductive methods from their mutual gravitation towards each other.

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  • But these, to the untutored imagination, present a mystical, as well as a mechanical aspect; and barbaric familiarity with the heavens developed at an early age, through the promptings of superstition, into a fixed system of observation.

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  • Kepler, on the contrary, was endowed with unlimited powers of speculation, but had no mechanical faculty.

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  • Galileo Galilei, Kepler's most eminent contemporary, took a foremost part in dissipating the obscurity that still hung over the very foundations of mechanical science.

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  • The true foundations of a mechanical theory of the heavens were laid by Kepler's discoveries, and by Galileo's dynamical demonstrations; its construction was facilitated by the development of mathematical methods.

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  • It consisted, first, in the identification, by strict numerical comparisons, of terrestrial gravity with the mutual attraction of the heavenly bodies; secondly, in the following out of its mechanical consequences throughout the solar system.

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  • It was especially adapted to the tracing out of " secular inequalities," or those depending upon changes in the orbital elements of the bodies affected by them, and hence progressing indefinitely with time; and by its means, accordingly, the mechanical stability of the solar system was splendidly demonstrated through the successive efforts of Lagrange and Laplace.

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  • Each increase of mechanical skill claims a corresponding gain in the subtlety of analysis; and vice versa.

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  • Sir Isaac Newton devised the following mechanical construction.

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  • The higher institutions of learning established by the state are the Oklahoma Agricultural and Mechanical College, a land grant college with an agricultural experiment station at Stillwater; the Oklahoma School of Mines at Wilburton; the Colored Agricultural and Normal University at Langston; the Central Normal School at Edmond; the North-western Normal School at Alva; the South-western Normal School at Weatherford, Custer county; the South-eastern Normal School at Durant, Bryan county; the East Central Normal School at Ada; the Northeastern Normal School at Tahlequah, Cherokee county; and the University of Oklahoma at Norman.

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  • The university, agricultural and mechanical college and normal schools also are maintained to a considerable extent out of the proceeds of section 13 in several townships.

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  • The perusal of Galileo's Dialoghi delle nuove scienze (1638) inspired him with many developments of the mechanical principles there set forth, which he embodied in a.

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  • Among the new truths detected by him was the valuable mechanical principle that if any number of bodies be so connected that, by their motion, their centre of gravity can neither ascend nor descend, then those bodies are in equilibrium.

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  • Thus light, pressure, or mechanical stimulation acting on the retina and optic nerve invariably produces luminous impressions.

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  • Nor is his theory of the weight essential to atoms as being due to an inner force impelling them to motion in any way reconcilable with his general doctrine of mechanical causes.

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  • The state supports wholly or in part, the university of South Carolina (before 1906 South Carolina College), established at Columbia in 1801; the South Carolina Military Academy (locally called " The Citadel ") established at Charleston in 1845, Clemson Agricultural College (1889), at Clemson, Oconee county, with departments of agriculture, chemistry, mechanics and electricity, textiles and military, and academic and preparatory courses; Winthrop Normal and Industrial College for Girls (1895) at Rock Hill, and the Coloured Normal, Industrial, Agricultural and Mechanical College (1896) at Orangeburg.

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  • Showing from his earliest years a strong mechanical bent, young Ericsson, at the age of twelve, was employed as a draughtsman by the Swedish Canal Company.

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  • Alloys prepared in this way, and known as phosphor bronze, may contain only about 1% of phosphorus in the ingot, reduced to a mere trace after casting, but their value is nevertheless enhanced for purposes in which a hard strong metal is required, as for pump plungers, valves, the bushes of bearings, &c. Bronze again is improved by the presence of manganese in small quantity, and various grades of manganese bronze, in some of which there is little or no tin but a considerable percentage of zinc, are extensively used in mechanical engineering.

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  • But these were only provisionary and desperate expedients, superposed upon the old routine, a further charge in addition to those already existing; and this entirely mechanical system, destructive of private initiative and the very sources of public life, worked with difficulty even in time of peace.

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  • From his earliest childhood Galileo, the eldest of the family, was remarkable for intellectual aptitude as well as for mechanical invention.

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  • This method, on which he laid great stress, and for the facilitation of which he invented a binocular glass, and devised some skilful mechanical contrivances, was offered by him in 1616 to the Spanish government, and afterwards to that of Tuscany, but in each case unsuccessfully; and the close of his life was occupied with prolonged but fruitless negotiations on the same subject with the states-general of Holland.

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  • Some valuable but isolated facts and theorems had been previously discovered and proved, but it was he who first clearly grasped the idea of force as a mechanical agent, and extended to the external world the conception of the invariability of the relation between cause and effect.

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  • The problem of the heavens is essentially a mechanical one; and without the mechanical conceptions of the dependence of motion upon force which Galileo familiarized to men's minds, that problem might have remained a sealed book even to the intelligence of Newton.

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  • We find Newton's theorem, that "action and reaction are equal and opposite," stated with approximate precision in his treatise Della scienza meccanica, which contains the substance of lectures delivered during his professorship at Padua; and the same principle is involved in the axiom enunciated in the third of his mechanical dialogues, that "the propensity of a body to fall is equal to the least resistance which suffices to support it."

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  • He studied with attention the still obscure subject of molecular cohesion, and little has been added to what he ascertained on the question of transverse strains and the strength of beams, first brought by him within the scope of mechanical theory.

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  • The conception of God as wholly external to man, a purely mechanical theory of the creation, is throughout Christendom regarded as false to the teaching of the New Testament as also to Christian experience.

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  • Besides agriculture, the course of instruction at the college includes chemistry, natural and mechanical philosophy, natural history, mensuration, surveying and drawing, and other subjects of practical importance to the farmer, proficiency in which is tested by means of sessional examinations.

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  • The same may be said of charcoal, both for heating and mechanical purposes.

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  • By the theory of minute constituents of things, and his emphasis on mechanical processes in the formation of order, he paved the way for the atomic theory.

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  • Fungus parasites have been used with some, but on the whole rather slight, success, and mechanical appliances with perhaps greater success, in combating these pests.

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  • He was president of the Agricultural and Mechanical College of Texas from -1902 to 1905 and then returned to the university of Texas as president.

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  • Archimedes contributed to the knowledge of these curves by determining the area of the parabola, giving both a geometrical and a mechanical solution, and also by evaluating the ratio of elliptic to circular spaces.

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  • The common notions of the devil as black, ill-favoured, malicious, destructive and the like, have occasioned the application of the term to certain animals (the Tasmanian devil, the devil-fish, the coot), to mechanical contrivances (for tearing up cloth or separating wool), to pungent, highly seasoned dishes, broiled or fried.

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  • Mechanical Arrangements Although the optical system is the first consideration in a microscope, the system is valueless if the fittings do not allow its correct use.

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  • Since then the hydraulic press has practically completely superseded all other appliances used for expression, and in consequence of this epoch-making invention, assisted as it was later on by the accumulator - invented by William George (later Lord) Armstrong in 1843 - the seed-crushing industry reached a perfection of mechanical detail which soon secured its supremacy for England.

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  • The heat equivalent of the mechanical work performed on the piston is abstracted from the air, which is discharged at the temperature T 1.

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  • The principle of the absorption process is chemical or physical rather than mechanical; it depends on the fact that many Absorp- vapours of low boiling-point are readily absorbed in water, and can be separated again by the application of heat.

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  • The process is continuous, and is identical with that of the compression machine, with the exception of the return from the temperature T 1 to the temperature T2, which is brought about by the direct application of heat instead of by means of mechanical compression.

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  • On the other hand, a great advantage is gained in the absorption machine by using the direct heat of the steam, without first converting it into mechanical work, for in this way its latent heat of vaporization can be utilized by condensing the steam in the coils and letting it escape in the form of water.

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  • Each pound of steam can thus be made to give up some 950 units of heat; while in a good steam engine only about 200 units are utilized in the steam cylinder per pound of steam, and in addition allowance has to be made for mechanical inefficiency.

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  • Though the adoption of refrigerating and ice-making machinery for industrial purposes practically dates from the year 1880, the manufacture of these machines has already assumed very great proportions; indeed, in no branch of mechanical engineering, with the exception of electrical machinery, has there been so remarkable a development in recent years.

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  • The development of periderm was a constant feature, and this tissue attained a great thickness, consisting chiefly of a phelloderm, produced on the inner side of the formative layer, and no doubt subserving a mechanical function.

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  • The relations between capital and labour are the subject of a series of statutes, which prohibit the employment of children under fourteen years of age in any mechanical, mercantile or manufacturing establishment, punish with fine or imprisonment any attempt by an employer to influence his employee's vote or to prevent him from joining a labour union, and in cases of insolvency give preference over general liabilities to debts of $100 or less for labour.

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  • Sugars, Starches, Gums, Gelatin, &c. - Although these and allied bodies are used in various ways as remedies, their action is for the most part purely mechanical or dietetic.

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  • His life was arranged with mechanical regularity; and, as he never married, he kept the habits of his studious youth to old age.

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  • Starting with the assumption of conscious experience as the content or filling-in of the individual mind, Locke proceeds to explain its genesis and nature by reference co the real universe of things and its mechanical operation upon the mind.

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  • Knowledge is regarded as a mechanical product, part furnished by the subject, part given to the subject, and is thus viewed as mechanically divisible into a priori and a posteriori, into pure and empirical, necessary and contingent.

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  • Assuming at the outset an opposition between the two, self and matter of knowledge, he is driven by the exigencies of the problem of reconciliation to insert term after term as means of bringing them together, but never succeeds in attaining a junction which is more than mechanical.

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  • In strictness, sense, understanding, imagination and reason ought to have had their functions defined in close relation to the elements of knowledge with which they are severally connected, and as these elements have no existence as separate facts, but only as factors in the complex organic whole, it might have been possible to avoid the error of supposing that each subjective process furnished a distinct, separately cognizable portion of a mechanical whole.

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  • He very commonly employs the term affection of the faculty of sense as expressing the mode of origin, but offers no further explanation of a term which has significance only when interpreted after a somewhat mechanical fashion.

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  • For in man self-determination and mechanical determination by empirical motives coexist, and only in so far as he belongs and is conscious of belonging both to the sphere of sense and to the sphere of reason does moral obligation become possible for him.

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  • There are breweries and large works for the manufacture of machinery, among which may be mentioned the Kockum mechanical works, with yards for the construction of vessels of war, and others; of cotton and woollen goods, gloves, chocolate, sweetmeats and tobacco.

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  • These results are confirmed by the mechanical analysis of clays.

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  • To diminish the item of expenditure on this head, various kinds of mechanical furnaces have been adopted, all of which can be classified under three heads of gravitating furnaces, mechanical stirrers and revolving furnaces.

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  • Mechanical stirrers constitute a second division of mechanical furnaces, in which the labour of rabbling or stirring the charges is performed by combinations of levers and wheel-work taking motion from a rotating shaft, and more or less perfectly imitating the action of hand labour.

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  • Revolving furnaces, the third and most important division of mechanical furnaces, are of two kinds.

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  • Mechanical furnaces are figured in the article Alkali Manufacture.

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  • If immortals are pens, and normal humans are number two pencils, then she's a mechanical pencil.

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  • Feeding soft, textured foods tends to reduce mechanical abrasion especially in the buccal surface of the caudal cheek teeth.

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  • Hands-on testing to destruction of metals and polymers in mechanical, aero and marine applications.

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  • A giant ape fighting with a giant mechanical robot ape.

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  • June, 1998... these reasons, a new test of mechanical aptitude was developed.

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  • Learn about the importance of verbal reasoning, technical aptitude, mechanical aptitude and math aptitude.

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  • Like strange mechanical grotesques, making fantastic arabesques, The shadows raced across the blind.

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  • And you would like me to address the fact that " we already have artificial intelligence [and] mechanical organisms " .

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  • These moves certainly helped to give precise content to the fundamental tenets of mechanical atomism that they had previously lacked.

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  • A surfing ballerina made out of vegetables was just one of the original ideas that emerged from this project on mechanical toys.

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  • Lycium afrum L. (kaffir boxthorn ), Lycium ferocissimum Miers (African boxthorn) and L. horridum Thunb. can produce mechanical injury.

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  • In his league match for Oxford at the Abbey, he was very unlucky with mechanical breakdowns restricting his score.

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  • Mechanical and electrical design expertise utilizing the latest cad and project management tools.

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  • The mechanical stage has a spring caliper to hold a standard slide.

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  • Mechanical injury by hairy calyx can occur (Muenscher 1951 ).

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  • These are not mere mechanical rules, but neither are they simply fictions to conceal caprice.

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  • At 200 Watts per square centimeter, we can't use mechanical means like a heat sink for cooling.

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  • You will fill in a questionnaire and be given a test covering reasoning, English language, numeracy and mechanical comprehension.

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  • Mechanical coolers used in space are generally based upon a linear compressor with clearance seals.

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