Wave Sentence Examples

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  • Jackson felt an intense wave of emotion.

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  • Dean asked, with a wave of his hands.

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  • He indicated the space behind him with a wave of a hand.

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  • On land only the grass and trees wave, but the water itself is rippled by the wind.

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  • A wave of warmth rushed up her neck and broke over her cheeks.

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  • Another wave of dizziness washed over her.

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  • Janet gave a wave of her hand.

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  • A wave of loneliness washed over her.

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  • In the future, if you don't recognize someone, don't wave at them.

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  • Lydia simply gave a dismissive wave of her hand and went inside, leaving Dean to follow.

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  • But wherever it may turn there always will be the wave anticipating its movement.

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  • Again the wave moved as one when the three were sighted.

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  • In spite of the disaster of her revelation, a wave of relief passed over me.

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  • She indicated her face with a wave of the hand and then changed the subject.

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  • After I had recovered from my first experience in the water, I thought it great fun to sit on a big rock in my bathing-suit and feel wave after wave dash against the rock, sending up a shower of spray which quite covered me.

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  • All trailed by Gabriel, who paused to look up and wave at her.

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  • He gave a wave but no further comment as he hurried to his Jeep and left.

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  • After greeting the group with a hearty wave, he proudly handed a surprised Cynthia Dean a wad of bills.

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  • But the wave they feel to be rising does not come from the quarter they expect.

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  • Dean cautioned Pumpkin to keep his hand on his wallet, but the young hiker dismissed the advice with a wave of his hand.

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  • Jennifer gave her a ta-ta wave before they entered the Dean's office.

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  • She had loosened her hair and her long tresses fell in a wave, over her shoulder and across her small breasts.

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  • In the FTSE 100 at least, we are some way from being in a wave of irrational exuberance.

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  • When the ship moves in one direction there is one and the same wave ahead of it, when it turns frequently the wave ahead of it also turns frequently.

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  • She jumped toward the child, apparently crying out and evoking a threatening wave of the knife by Grasso.

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  • There was no verbal reply—only a returning wave of her light.

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  • He turned with a wave, "I'll see you later, honey bunch!"

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  • The local vehicles that passed him invariable gave him a wave and a wide berth.

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  • Dean climbed from her car and she was off with a wave.

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  • There was a sense of cold and the ooze of blood filling his boot, and a reeling wave of lightheadedness, but little pain.

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  • A wave of grief engulfed him and ripped through to his core, knocking the breath from him.

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  • Fred dismissed the news with a wave of his hand.

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  • Between these cyclonic storms come areas of high pressure, or anticyclones, with dry cool air in summer, and dry cold air in winter, sometimes with such decided changes in temperature as to merit the name cold wave.

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  • She died from apparent heat exhaustion in the same heat wave.

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  • A tuning fork produces a single note - a pure sine wave.

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  • Again, as at the church in Khamovniki, a wave of general curiosity bore all the prisoners forward onto the road, and Pierre, thanks to his stature, saw over the heads of the others what so attracted their curiosity.

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  • She gave a nervous wave, watching for his reaction and relieved when he offered a warm smile.

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  • Jackson drank deeply and enjoyed his venom coursing through Elisabeth, eliciting wave after wave of euphoria.

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  • With a return wave, Lana set her gaze on the door to her own apartment up the stairs.

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  • Dean dismissed the comment with a wave of his hand, sorry he'd opened his mouth.

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  • Dean smiled, gave a wave goodnight and climbed the stairs.

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  • Fred dismissed Dean's comments with a wave of his hand.

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  • One minute he'd be drinking in the beauty of the countryside and the next feeling a wave of anxiety, realizing what had begun as a mild suspicion was close to culminating in a face-to-face confrontation with Jeffrey Byrne.

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  • When the road straightened once more, he heard a noise behind him and a dozen daredevils in the tuck posi­tion sped on by him with a wave and a rush of air.

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  • Thus he approximates to the wave theory of light, though he supposed that the transmission of light was instantaneous.

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  • In many cases additional condensers or inductance coils are inserted in various places so that the arrangement is somewhat disguised, but by far the larger part of the electric wave wireless telegraphy in 1907 was effected by transmitters having antennae either inductively or directly coupled to a closed condenser circuit containing a spark gap.

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  • It was then found that when electric waves fell on the antenna a sound was heard in the telephone as each wave train passed over it, so that if the wave trains endured for a longer or shorter time the sound in the telephone was of corresponding duration.

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  • An innumerable number of forms of coherer or wave detector depending upon the change in resistance produced at a loose or imperfect contact have been devised.

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  • When electric oscillations are set up in these two classes of electric radiators, the first class send out a highly damped wave train and the second a feeble damped wave train provided that they have sufficient capacity or energy storage and low resistance.

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  • All of them couple the transmitting antenna directly or inductively to a capacity-inductive circuit serving as a storage of energy, and all of them create thereby electric waves of the same type moving over the earth's surface with the magnetic force of the wave parallel to it.

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  • Fleming, The Principles of Electric Wave Telegraphy (London, 1906), chap. vii.; also Cantor Lectures on Hertzian wave telegraphy, Lecture iv., Journ.

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  • His words were like a sharp object puncturing a water balloon, and her words gushed out in a wave of uninhibited emotion.

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  • I do try to think that he is still near, very near; but sometimes the thought that he is not here, that I shall not see him when I go to Boston,--that he is gone,--rushes over my soul like a great wave of sorrow.

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  • A fresh wave of the flying mob caught him and bore him back with it.

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  • They saw others on the trail only once when an elderly couple steamed by them with a wave.

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  • These striking successes caused a wave of revolt to spread through Holland, Zeeland, Gelderland, Utrecht and Friesland.

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  • The tidal wave of the Southern Ocean, which sweeps uninterruptedly round the globe from east to west, generates a secondary wave between Africa and South America, which travels north at a rate dependent only on the depth of the ocean.

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  • With this " free " wave is combined a " forced " wave, generated, by the direct action of the sun and moon, within the Atlantic area itself.

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  • In depths beyond the reach of wave motion, and apart from suspension across a submarine gully, which will sooner or later result in a rupture of the cable, the most frequent cause of interruption is seismic or other shifting of the ocean bed, while in shallower waters and near the shore the dragging of anchors or 40 fishing trawls has been mostly responsible.

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  • On creating an electric spark or wave in the neighbourhood of the tube the resistance suddenly falls to a few ohms and the cell sends a current through it.

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  • But, as Branly showed, it is not universally true that the action of an electric wave is to reduce the resistance of a tube of powdered metal or cause the particles to cohere.

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  • This form of electric wave detector proved itself to be far more certain in operation and sensitive than anything previously invented.

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  • The magnetic and electric forces are directed alternately in one direction and the other, and at distances which are called multiples of a wave length the force is in the same direction at the same time, but in the case of damped waves h.as not quite the same intensity.

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  • Fleming's Electric Wave Telegraphy, by permission of Longmans, Green & Co.

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  • This periodic distribution in time and space constitutes an electric wave proceeding outwards in all directions from the sending antenna.

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  • He thus produced in 1896 for the first time an operative apparatus of electric wave telegraphy.

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  • Marconi's successes and the demonstrations he had given of the thoroughly practical character of this system of electric wave telegraphy stimulated other inventors to enter the same field of labour, whilst theorists began to study carefully the nature of the physical operations involved.

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  • We now consider the more recent appliances for electric wave telegraphy under the two divisions of transmitting and receiving apparatus.

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  • This creates rapid variations in electric and magnetic force round the antenna and detaches energy from it in the form of an electric wave.

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  • The whole process is exactly analogous to the operation by which a violin string or organ pipe creates an air or sound wave.

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  • When electric oscillations are set up in an open or closed electric circuit having capacity and inductance, and left to themselves, they die away in amplitude, either because they dissipate their energy as heat in overcoming the resistance of the circuit, or because they radiate it by imparting wave motion to the surrounding ether.

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  • From and after that time the British Admiralty and the navies of other countries began to give great attention to the development of electric wave telegraphy.

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  • This result created a great sensation, and proved that Transatlantic electric wave telegraphy was quite feasible and not inhibited by distance, or by the earth's curvature even over an arc of a great circle 3000 m.

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  • In 1904 a regular system of communication of press news and private messages from the Poldhu and Cape Breton stations to Atlantic liners in mid-Atlantic was inaugurated, and daily newspapers were thenceforth printed on board these vessels, news being supplied to them daily by electric wave telegraphy.

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  • A problem of great importance in connexion with electric wave telegraphy is that of limiting the radiation to certain directions.

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  • The process of reflection in the case of a wave motion involves the condition that the wave-length shall be small compared with the dimensions of the mirror, and hence the attempt to reflect and converge electric waves loon ft.

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  • Fleming, The Principles of Electric Wave Telegraphy, 1906, p. 73.

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  • The scientific study of electric wave telegraphy has necessitated the introduction of many new processes and methods of electrical measurement.

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  • In all cases of wave motion the wave-length is connected with the velocity of propagation of the radiation by the relation v=nX, where n is the frequency of the oscillations and X is the wave-length.

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  • Instruments for doing this are called wave meters and are of two kinds, open circuit and closed circuit.

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  • An immense mass of information has been gathered on the scientific processes which are involved in electric wave telegraphy.

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  • Starting from an observation of Marconi's, a number of interesting facts have been accumulated on the absorbing effect of sunlight on the propagation of long Hertzian waves through space, and on the disturbing effects of atmospheric electricity as well as upon the influence of earth curvature and obstacles of various kinds interposed in the line between the sending and transmitting stations.4 Electric wave telegraphy has revolutionized our means of communication from place to place on the surface of the earth, making it possible to communicate instantly and certainly between places separated by several thousand miles, whilst The Electrician, 1904, 5 2, p. 407, or German Pat.

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  • It is now generally recognized that Hertzian wave telegraphy, or radio-telegraphy, as it is sometimes called, has a special field of operations of its own, and that the anticipations which were at one time excited by uninformed persons that it would speedily annihilate all telegraphy conducted with wires have been dispersed by experience.

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  • Pupin showed that by placing inductance coils in circuit, at distances apart of less than half the length of the shortest component wave to be transmitted, a non-uniform conductor could be made approximately equal to a uniform conductor.

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  • In the case of Messina the horror of the situation was heightened by a tidal wave.

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  • The colouring of the steppe changes as if by magic, and only the silvery plumes of the steppe-grass (Stipa pennata) wave in the wind, tinting the steppe a bright yellow.

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  • Byron's description, "[The] immemorial wood Rooted where once the Adrian wave flowed o'er," is probably true; but there is no evidence that it was in historic time that this change took place.

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  • These ancient states began to decline in the 7th century B.e., and on their ruins rose the Persian empire, which with various political metamorphoses continued to be an important power till the 7th century A.D., after which all western Asia was overwhelmed by the Moslem wave, and old landmarks and kingdoms were obliterated.

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  • Napcleon was now able by degrees to dispense with all republican forms (the last to go was the Republican Calendar, which ceased on the 1st of January 1806), and the scene at the coronation in Notre Dame on the 2nd of December 1804 was frankly imperial in splendour and in the egotism which led Napoleon to wave aside the pope, Pius VII., at the supreme moment and crown himself.

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  • Akhenaton at Tell el-Amarna; while in the Aegean area itself we have abundant evidence of a great wave of Egyptian influence beginning with this same Dynasty.

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  • To this wave were owed in all probability the Nilotic scenes depicted on the Mycenae daggers, on frescoes of Hagia Triada and Cnossus, on pottery of Zakro, on the shell-relief of Phaestus, &c.; and also many forms and fabrics, e.g.

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  • Many of these tribes have retained their pristine paganism, but many others it is certain have adopted the Mahommedan religion and have been assimilated by the subsequent and stronger wave of Sumatran immigrants.

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  • For the subjects of this general heading see the articles Mechanics; Dynamics, Analytical; Gyroscope; Harmonic Analysis; Wave; HYDROMechanics; Elasticity; Motion, Laws Of; Energy; Energetics; Astronomy (Celestial Mechanics); Tide.

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  • The present city is half a mile north of the site of the old town, which was destroyed by an earthquake and tidal wave in 1746.

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  • In spring the traveller crosses a sea of grass above which the flowers of the paeony, aconite, Orobus, Carallic, Saussurea and the like wave 4 or 5 ft.

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  • This resolution of the original wave is the well-known "Principle of Huygens," and by its means he was enabled to prove the fundamental laws of optics, and to assign the correct construction for the direction of the extraordinary ray in uniaxial crystals.

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  • The wave motion due to any element of the surface is called a secondary wave, and in estimating the total effect regard must be paid to the phases as well as the amplitudes of the components.

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  • It is usually convenient to choose as the surface of resolution a wave front, i.e.

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  • We have seen that the problem before us is independent of the law of the secondary wave as regards obliquity; but the result of the integration necessarily involves the law of the intensity and phase of a secondary wave as a function of r, the distance from the origin.

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  • Now as to the phase of the secondary wave, it might appear natural to suppose that it starts from any point Q with the phase of the primary wave, so that on arrival at P, it is retarded by the amount corresponding to QP. But a little consideration will prove that in that case the series of secondary waves could not reconstitute the primary wave.

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  • It is accordingly necessary to suppose that the secondary waves start with a phase one-quarter of a period in advance of that of the primary wave at the surface of resolution.

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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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  • If the primary wave at 0 be cos kat, the effect of the secondary wave proceeding from the element dS at Q is dS 1 dS - p cos k(at - p+ 4 A) = - -- sin k(at - p).

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  • In order to obtain the effect of the primary wave, as, retarded by traversing the distance r, viz.

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  • According to the assumed law of the secondary wave, the result must actually depend upon the precise radius of the outer boundary of the region of integration, supposed to be exactly circular.

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  • When the primary wave is plane, the area of the first Fresnel zone is 7rXr, and, since the secondary waves vary as r 1, the intensity is independent of r, as of course it should be.

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  • Taking co-ordinates in the plane of the screen with the centre of the wave as origin, let us represent M by, n, and P (where dS is situated) by x, y, z.

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  • This indefiniteness of images is sometimes said to be due to diffraction by the edge of the aperture, and proposals have even been made for curing it by causing the transition between the interrupted and transmitted parts of the primary wave to be less abrupt.

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  • The aberration is here unsymmetrical, the wave being in advance of its proper place in one half of the aperture, but behind in the other half.

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  • The formula expressing the optical power of prismatic spectroscopes may readily be investigated upon the principles of the wave theory.

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  • The dark lines which separate the bands are the places at which the phases of the secondary wave range over an integral number of periods.

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  • When, in order to apply Huygens's principle, the wave is supposed to be broken up, the phase is the same at every element of the surface of resolution which lies upon a line perpendicular to the plane of reference, and thus the effect of the whole line, or rather infinitesimal strip, is related in a constant manner to that of the element which lies O in the plane of reference, and may be considered to be represented thereby.

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  • To assume a cylindrical form of primary wave would be justifiable only when there is synchronism among the secondary waves issuing from the various centres.

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  • For a point Q outside the shadow the integration extends over more than half the primary wave.

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  • The latter is the intensity due to the uninterrupted wave.

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  • At the point 0 the intensity is one-quarter of that of the entire wave, and after this point is passed, that is, when we have entered the geometrical shadow, the intensity falls off gradually to zero, without fluctuations.

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  • But, without entering upon matters of this kind, we may inquire in what manner a primary wave may be resolved into elementary secondary waves, and in particular as to the law of intensity and polarization in a secondary wave as dependent upon its direction of propagation, and upon the character as regards polarization of the primary wave.

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  • It is then verified that, after integration with respect to dS, (6) gives the same disturbance as if the primary wave had been supposed to pass on unbroken.

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  • The factor (I -cos 0) shows in what manner the secondary disturbance depends upon the direction in which it is propagated with respect to the front of the primary wave.

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  • If, as suffices for all practical purposes, we limit the application of the formulae to points in advance of the plane at which the wave is supposed to be broken up, we may use simpler methods of resolution than that above considered.

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  • The conception of the lamina leads immediately to two schemes, according to which a primary wave may be supposed to be broken up. In the first of these the element dS, the effect of which is to be estimated, is supposed to execute its actual motion, while every other element of the plane lamina is maintained at rest.

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  • When the secondary disturbance thus obtained is integrated with respect to dS over the entire plane of the lamina, the result is necessarily the same as would have been obtained had the primary wave been supposed to pass on without resolution, for this is precisely the motion generated when every element of the lamina vibrates with a common motion, equal to that attributed to dS.

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  • If, instead of supposing the motion at dS to be that of the primary wave, and to be zero elsewhere, we suppose the force operative over the element dS of the lamina to be that corresponding to the primary wave, and to vanish elsewhere, we obtain a secondary wave following quite a different law.

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  • In order to apply these ideas to the investigation of the secondary wave of light, we require the solution of a problem, first treated by Stokes, viz.

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  • The intensity of light is, however, more usually expressed in terms of the actual displacement in the plane of the wave.

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  • We will now apply (18) to the investigation of a law of secondary disturbance, when a primary wave = sin (nt - kx) (19) is supposed to be broken up in passing the plane x = o.

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  • A wave of military enthusiasm arose throughout the empire, and as the formation of a seventh division practically drained the mother-country of trained men, a scheme for the employment of amateur soldiers was formulated, resulting in the despatch of Imperial Yeomanry and Volunteer contingents, which proved one of the most striking features of the South African campaign.

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  • The geometrical theory can afford no explanation of these coloured bands, and it has been shown that the complete phenomenon of the rainbow is to be sought for in the conceptions of the wave theory of light.

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  • In 1868 the town was nearly destroyed by an earthquake, in 1875 by fire, and again in 1877 by earthquakes, a fire and a tidal wave.

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  • The explosive wave from the dry guncotton primer is in fact better responded to by the wet compressed material than the dry, and its detonation is somewhat sharper than that of the dry.

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  • It is not necessary for the blocks of wet guncotton to be actually in contact if they be under water, and the peculiar explosive wave can also be conveyed a little distance by a piece of metal such as a railway rail.

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  • It is strange that so little interest has been taken in a craft in which for some thirty years England surpassed all competitors, creating a wave of fashion which influenced the glass industry throughout the whole of Europe.

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  • Nanak seems to have been produced by the same cyclic wave of reformation as fourteen years later gave Martin Luther to Europe.

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  • The branch of hydrodynamics which discusses wave motion in a liquid or gas is given now in the articles Sound and Wave; while the influence of viscosity is considered under Hydraulics.

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  • The estuary or bay is funnel-shaped, and its configuration produces at spring tides a " bore " or tidal wave, which at its maximum reaches a height of 15 to 20 ft.

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  • Great damage was done by a seismic wave following the shock.

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  • The town was overwhelmed by a vast wave, which rose 80 ft.; and the shocks continued until the following February.

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  • It is situated on the right bank of the Seine, the tidal wave of which (mascaret) can be well seen at this point.

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  • The development of Japanese painting may be divided into the following six periods, each signalized by a wave of progress.

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  • The manifold plate is then heavily punched from one side, so that the opposite face protrudes in broken blisters, which are then hammered down until each becomes a centre of wave propagation.

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  • The earthquake occurred early in the morning of December 28, and so far as Messina was concerned the damage was done chiefly by the shock and by the fires which broke out afterwards; the seismic wave which followed was comparatively innocuous.

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  • In mechanics, the amplitude of a wave is the maximum ordinate.

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  • He was in the act of issuing his orders when a psychological wave swept through the fighting-line, and the men rose and rushed the village at the point of the bayonet.

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  • This was stopped almost entirely by the Prussian artillery fire; but the news of its coming spread through the stragglers in the ravine south of the great road, and a wave of panic again swept through the mass, many thousands bolting right upon the front of their own batteries, thus masking their fire at the most critical moment, and something like a crisis in the battle arose.

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  • But as things are the watersurface is broken by land, and the mean density of the substance of the land is 2 6 times as great as that of sea-water, so that the gravitational attraction of the land must necessarily cause a heaping up of the sea around the coasts, forming what has been called the continental wave, and leaving the sea-level lower in mid-ocean.

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  • Pure calcareous sand and calcareous mud are formed by wave action on the shores of coral islands where the only material available is coral and the accompanying calcareous algae, crustacea, molluscs and other organisms secreting carbonate of lime.

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  • We are still ignorant of the depth to.which the annual temperature wave penetrates in the open ocean, but observations in the Mediterranean enable us to form some opinion on the matter.

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  • It has since been shown, however, that unless the gas is at a pressure of more than two atmospheres this wave soon dies out, and the decomposition is only propagated a few inches from the detonator.

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  • This wave of enthusiasm spread from Northampton, Mass., till it swept New England.

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  • But the socialistic labour wave of later years had not yet gathered strength.

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  • As sound arises in general from vibrating bodies, as it takes time to travel, and as the medium which carries it does not on the whole travel forward, but subsides into its original position when the sound has passed, we are forced to conclude that the disturbance is of the wave kind, We can at once gather some idea of the nature of sound waves in air by considering how they are produced by a bell.

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  • If a second card with a narrow slit in it is held in front of the first, the slit running from the centre outwards, the wave motion is still more evident.

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  • If the figure be photographed as a lantern slide which is mounted so as to turn round, the wave motion is excellently shown on the screen, the compressions and extensions being represented by the crowding in and opening out of the lines.

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  • For instance, if a rope is fixed at one end and held in the hand at the other end, a transverse jerk by the hand will travel as a transverse wave along the rope.

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  • If each wave travels out from the source with velocity U the n waves emitted in one second must occupy a length U and therefore U = nX.

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  • If a wave travels on without alteration the travelling may be represented by pushing on the displacement curve.

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  • In the time dt which the wave takes to travel over MN the particle displacement at N changes by QR, and QR= - udt, so that QR/MN = - u/U.

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  • Generally, if any condition in the wave is carried forward unchanged with velocity U, the change of 4 at a given point in time dt is equal to the change of as we go back along the curve a distance dx = Udt at the beginning of dt.

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  • We can only conclude that it depends on wave form, a conclusion fully borne out by investigation.

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  • Whatever the form of a wave, we could always force it to travel on with that form unchanged, and with any velocity we chose, if we could apply any " external " force we liked to each particle, in addition to the " internal " force called into play by the compressions or extensions.

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  • If the velocity U is so chosen that E - poU 2 = o, then X = o, or the wave travels on through the action of the internal forces only, unchanged in form and with velocity U = (E/p).

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  • If, however, we put on external forces of the required type X it is obvious that any wave can be propagated with any velocity, and our investigation shows that when U has the value in (6) then and only then X is zero everywhere, and the wave will be propagated with that velocity when once set going.

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  • It implies that the different parts of a wave move on at different rates, so that its form must change.

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  • Probably there is a breakdown of the wave somewhat like the breaking of a water-wave when the crest gains on the next trough.

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  • This gives maximum u=about 8 cm./sec., which would not seriously change the form of the wave in a few wavelengths.

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  • We shall show that if we sum these up for a whole wave the potential energy is equal to the kinetic energy.

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  • The kinetic energy per cubic centimetre is 2 pu t, where is the density and u is the velocity of disturbance due to the passage of the wave.

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  • The term Pv/V added up for a complete wave vanishes, for P/V is constant and Zv=o, since on the whole the compression equals the extension.

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  • When the wave travelled to the receiver it pushed back the disk from the contact-piece, and this break, too, was recorded.

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  • When a wave of sound meets a surface separating two media it is in part reflected, travelling back from the surface into the first medium again with the velocity with which it approached.

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  • When a wave of sound travelling through one medium meets a second medium of a different kind, the vibrations of its own particles are communicated to the particles of the new medium, so that a wave is excited in the latter, and is propagated through it with a velocity dependent on the density and elasticity of the second medium, and therefore differing in general from the previous velocity.

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  • The direction, too, in which the new wave travels is different from the previous one.

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  • As with light the ratio involved in the second law is always equal to the ratio of the velocity of the wave in the first medium to the velocity in the second; in other words, the sines of the angles in question are directly proportional to the velocities.

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  • Consequently a wave front such as b 1 tends to turn upwards, as shown in the successive positions b 2, 3 and 4.

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  • The velocity of any part of a wave front relative to the ground will be the normal velocity of sound + the velocity of the wind at that point.

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  • But if the wind is against the sound the velocity of a point of the wave front is the normal velocity-the wind velocity at the point, and so decreases as we rise.

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  • A short impulsive wave travels towards the fence, and each rail as it is reached by the wave becomes the centre of a new secondary wave sent out all round, or at any rate on the front side of the fence.

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  • At the instant that the original wave reaches F the wave from E has travelled to a circle of radius very nearly equal to EF-not quite, as S is not quite in the plane of the rails.

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  • The wave from D has travelled to a circle of radius nearly equal to DF, that from C to a circle of radius nearly CF, and so on.

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  • The engine follows up any wave that it has sent forward, and so crowds up the succeeding waves into a less distance than if it remained at rest.

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  • It draws off from any wave it has sent backward and so spreads the succeeding waves over a longer distance than if it had remained at rest.

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  • If he were at rest, it would be the waves in length U + w, for the wave passing him at the beginning of a second would be so far distant at the end of the second.

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  • The simplest form of wave, so far as our sensation goes - that is, the one giving rise to a pure tone - is, we have every reason to suppose, one in which the displacement is represented by a harmonic curve or a curve of sines, y=a sin m(x - e).

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  • For the superposition of these trains will give a stationary wave between A H A (16) Y which is an equation characteristic of simple harmonic motion.

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  • The stationary wave method regards the vibration in the pipe as due to a series of waves travelling to the end and being there reflected back down the pipe.

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  • The stationary wave system adjusts itself so that its motion agrees with that of the sounder, which is therefore not exactly at a node.

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  • When two trains of sound waves travel through the same medium, each particle of the air, being simultaneously affected by the disturbances due to the different waves, moves in a different manner than it would if only acted on by each wave singly.

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  • If the two interfering waves, being still of same length X, be in opposite phases, or sõ that one is in advance of the other by 2X, and consequently one produces in the air the opposite state of motion to the other, then the resultant wave is one of the same length X, but the excursions of the particles are decreased, being the difference between those due to the component waves as in fig.

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  • The third mode of production of combination tones, the production in the medium itself, follows from the varying velocity of different parts of the wave, as investigated at the beginning of this article.

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  • A grand campaign of agitation on the part of the Russian Count Bobrinsky, whose watch-word was that the Russian banner must wave over the Carpathians, though winked at by the Polish governor, led to a great political trial (Dec. 29 1913) for high treason of 180 Ruthenians who had been seduced by this agitator.

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  • The commercial treaty of 1786 between Great Britain and France has already been referred to as making a breach in the restrictive system of the 18th century; and in the early years of the French Revolution a similar wave of liberal policy is to be seen.

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  • But with these insignificant exceptions it holds true that, after the sceptical wave marked by the Sophists, scepticism does not reappear till after the exhaustion of the Socratic impulse in Aristotle.

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  • The town occupies a narrow beach between the sea and bluffs, and was greatly damaged by an earthquake and tidal wave in 1877.

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  • A wave of intense religious feeling passes over the land and finds its expression, according to the ordinary law of oriental life, in the formation of a sort of enthusiastic religious order.

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  • In Acapulco a tidal wave followed the shock.

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  • Thus, if one molecule is disturbed from its mean position, it communicates the disturbance to its neighbours, and so a wave is propagated.

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  • Thus the ether within the dispersive medium is loaded with molecules which are forced to perform oscillations of the same period as that of the transmitted wave.

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  • The fundamental assumption is that the medium contains positively and negatively charged ions or electrons which are acted on by the periodic electric forces which occur in wave propagation on Maxwell's theory.

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  • One of the best indications of actual winter weather, as apart from the arrival of winter by the calendar, is the development of cyclonic disturbances of such strength that the change frcm their warm, sirocco-like southerly inflow hi front of their centre, to the cold wave of their rear produces lion-periodic temperature changes strong enough to overcome the weakened diurnal temperature changes of the cold season, a relation which practically never occurs in summer time.

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  • The great earthquake of 1868, followed by a tidal wave, nearly destroyed the town and shipping.

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  • The limitation of power is introduced as in all optical instruments, by the finiteness of the length of a wave of light which causes the image of an indefinitely narrow slit to spread out over a finite width in the focal plane of the observing telescope.

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  • The problem, which, in the opinion of the present writer, is the one of interest and has more or less definitely been in the minds of those who have discussed the subject, is whether the type of wave sent out by a molecule only depends on the internal energy of that molecule, or on other considerations such as the mode of excitement.

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  • According to present ideas, the wave originates in a disturbance of electrons within the molecules.

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  • The efforts which were consequently made in the early days of spectroscopy to discover some numerical relationship between the different wave lengths of the lines belonging to the same spectrum rather disregard the fact that even in acoustics the relationship of integer numbers holds only in special and very simple cases.

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  • Balmer, who showed that the four hydrogen lines in the visible part of the spectrum may be represented by the equation n = A(i - 4/s2), where n is the reciprocal of the wave-length and therefore proportional to the wave frequency, and s successively takes the values 3, 4, 5, 6.

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  • It would therefore seem to be more appropriate to replace 1 - K- 1 by (2 - I)1112, where j s is the refractive index; but this expression involves the wave propagation for periods coinciding with free periods of the molecules.

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  • Save in some parts of Germany, where the influence of Luther saved the churches from wreck, an iconoclastic wave spread over the greater part of Western Europe, wherever the " new religion " prevailed; everywhere churches were cleared of images and reduced to the state of those described by William Harrison in his Description of England (1570), only the " pictures in glass " being suffered in some cases to survive for a while " by reason of the extreme cost of replacing them."

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  • Yet the wave of reaction which soon overwhelmed the freer tendencies of the first reformers, brought back the old view until the revival of biblical criticism more than a century ago.

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  • The alignment of marine shafting, changing with every passing wave, is an extreme example.

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  • A great wave of secularity rolled over the Church, engulfing the religious orders with the rest; love waxed cold, fervour languished; learning declined, discipline was relaxed, bitter rivalries broke out, especially between Franciscans and Dominicans.

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  • The form of the wave was also changed.

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  • For instance, the velocity of propagation of a wave having a period of a day is nearly twenty times as great as that of a wave with a period of one year; but on the other hand the penetration of the diurnal wave is nearly twenty times less, and the shorter waves die out more rapidly.

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  • A Simple-Harmonic or Sine Wave is the only kind which is propagated without change of form.

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  • The wave at a depth x is represented analytically by the equation 0 - 0 0 = Ae mx sin (21rnt - mx).

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  • The diffusivity can be deduced from observations at different depths x' and x", by observing the ratio of the amplitudes, which is (x '- x ") for a simple-harmonic wave.

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  • In any case results deduced from the annual wave must be expected to vary in different years according to the distribution of the rainfall, as the values represent averages depending chiefly on the diffusion of heat by percolating water.

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  • It may be questioned whether it was due to a wave of enthusiasm amongst the priests and people, leading them to rededicate the monuments in the name of their deliverer, or a somewhat insane desire of the king to perpetuate his own memory in a singularly unfortunate manner.

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  • The wave of change (nervous impulse) induced in a neuron by advent of a stimulus is after all only a sudden augmentation of an activity continuous within the neuron - a transient accentuation of one (the disintegrative) phase of the metabolism inherent in and inseparable from its life.

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  • But in every country alike the wave of viking conquest now begins to recede.

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  • The maharaj rana of Dholpur belongs to the clan of Bamraolia Jats, who are believed to have formed a portion of the IndoScythian wave of invasion which swept over northern India about A.D.

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  • Gallium is best detected by means of its spark spectrum, which gives two violet lines of wave length 4171 and 4031.

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  • The suggestion was made, and seems to be the true explanation, that what was actually witnessed was the wave of light due to the outburst of the nova, spreading outwards with its velocity of 186,000 m.

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  • When, however, in 1575 a new wave of plague passed over Europe, its origin was referred to Constantinople, whence it was said to have spread by sea to Malta, Sicily and Italy, and by land through the Austrian territories to Germany.

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  • In short, if we regard the history of this disease as a whole, it appears to have lost such power from the time of the Great Plague of London in 1665, which was part of a pandemic wave, until the present day.

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  • This list is probably by no means exhaustive, but it sufficiently indicates in a summary fashion the extent of that wave of diffusion which set in during the closing years of the 19th century.

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  • Plague was recognized at Hong Kong in May 1894, and there can be little doubt that it was imported from Canton, where a violent outbreak-said to have caused ioo,000 deaths-was in progress a few months earlier, being part of an extensive wave of infection which is believed to have come originally out of the province of Yunnan, one of the recognized endemic centres, and to have invaded a large number of places in that part of China, including Pakhoi and other seaports.

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  • The new synthesis reveals a universal decline from the 5th to the 10th centuries, while the Germanic races were learning the rudiments of culture, a decline that was deepened by each succeeding wave of migration, each tribal war of Franks or Saxons, and reached its climax in the disorders of the 9th and 10th centuries when the half-formed civilization of Christendom was forced to face the migration of the Northmen by sea, the raids of the Saracen upon the south and the onslaught of Hungarians and Sla y s upon the east.

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  • If the range of the independent variable or variables is unlimited, the value of in is at our disposal, and the solution gives us the laws of wave-propagation (see WAVE).

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  • A similar result follows in a lesser degree a wave of emigration.

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  • Before a wave of progress has reached our shores we have had the opportunity of watching it as spectators, and of considering how we shall receive it.

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  • While still a young man he had been affected by the wave of liberalism then spreading all over Italy, and soon after his marriage he began to conspire mildly against the Bourbon government.

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  • Hertz then devised a wave detecting apparatus called a resonator.

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  • Marconi applied a modified and improved form of Branly's wave detector in conjunction with a novel form of radiator for the telegraphic transmission of intelligence through space without wires, and he and others developed this new form of telegraphy with the greatest rapidity and success into a startling and most useful means of communicating through space electrically without connecting wires.

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  • Sometimes, it must be owned, his realism is rather coarse and brutal, but when he paints the forests of Franche-Comte, the "Stag-Fight," "The Wave," or the "Haunt of the Does," he is inimitable.

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  • Coquimbo was swept by a tidal wave in 1849, and Concepcion and Talcahuano were similarly destroyed in 1835.

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  • The great earthquake which partially destroyed Valparaiso in 1906, however, was not followed by a tidal wave.

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  • Consequently the monochromatic class includes the aberrations at reflecting surfaces of any coloured light, and at refracting surfaces of monochromatic or light of single wave length.

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  • The refractive indices for different wave lengths must be known for each kind of glass made use of.

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  • On the emission theory the velocity should be accelerated by an increase of density in the medium; on the wave theory, it should be retarded.

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  • A wave of eclecticism passed over all the Greek schools in the 1st century B.C. Platonism and scepticism had left undoubted traces upon the doctrine of such a reformer as Panaetius.

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  • The next great wave of Celts recorded was that which swept down on north Italy shortly before 400 B.C. These invaders broke up in a few years the Etruscan power, and even occupied Rome herself after the disaster on the Allia (390 B.C.).

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  • He also calculated the effect of surface-tension on the propagation of waves on the surface of a liquid, and determined the minimum velocity of a wave, and the velocity of the wind when it is just sufficient to disturb the surface of still water.

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  • These rapidly descend in Newton's scale and at last disappear, showing that the thickness of the film is less than the tenth part of the length of a wave of light.

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  • Between the body and this first wave the surface is comparatively smooth.

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  • Then comes the stationary wave of minimum velocity, which is the most marked of the series.

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  • If the current-function of the water referred to the body considered as origin is Ili, then the equation of the form of the crest of a wave of velocity w, the crest of which travels along with the body, is d =w ds where ds is an element of the length of the crest.

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  • To integrate this equation for a solid of given form is probably difficult, but it is easy to see that at some distance on either side of the body, where the liquid is sensibly at rest, the crest of the wave will approximate to an asymptote inclined to the path of the body at an angle whose sine is w/V, where w is the velocity of the wave and V is that of the body.

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  • But those whose wave-length is near to that of the wave of minimum velocity will diverge less than any of the others, so that the most marked feature at a distance from the body will be the two long lines of ripples of minimum velocity.

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  • As will be seen from this account, the figure-of-8 or wave theory of stationary and progressive flight has been made the subject of a rigorous experimentum crucis.

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  • On the south coast, opposite the broadest part of the lake, are precipitous walls of red sandstone, extending about 14 m., famous as the Pictured Rocks, so called from the effect of wave action on them.

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  • Wave action is seen in the numerous caverns, and south-east of Portland Bill, the southern extremity of the isle, is a bank called the Shambles, between which and the land there flows a dangerous current called the Race of Portland.

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  • In truth, however, he was lifted by the wave he seemed to command.

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  • A new intellectual wave was breaking over Western Europe, symbolized by the university and the scholastic movements; and a new spirit of democratic freedom was making itself felt in the growing commercial towns of Italy and Germany.

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  • From the 6th to the 12th century, wave after wave of barbarian conquerors, Goths, Tatars, Sla y s and others, passed over the country, and, according to one school of historians, almost obliterated its original Daco-Roman population; the modern Vlachs, on this theory, representing a later body of immigrants from Transdanubian territory.

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  • A wave of feeling spread amongst the different Kaffir tribes on the colonial frontier, and after the Gaika-Galeka War there followed in 1879 a rising in Basutoland under Moirosi, whose cattle-raiding had for some time!past caused considerable trouble.

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  • If the Bond aroused disloyalty and mistaken aspirations in one section of the Cape inhabitants, it is equally certain that it caused a great wave of loyal and patriotic enthusiasm to pass through another and more enlightened section.

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  • In open places that height is seldom more than about one and a half times the square root of the " fetch " or greatest distance in nautical miles from which the wave has travelled to the point in question; but in narrow reaches or lakes it is relatively higher.

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  • Above this again, the height of the wave should be allowed for " wash," making the embankment in such a case not less than 54 ft.

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  • The wave of popularity which had carried Lord Palmerston to victory in 1857 had lost its strength.

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  • In its three last sessions it was destined to sink into gradual disrepute; and it was ultimately swept away by a wave of popular reaction, as remarkable as that which had borne it into power.

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  • If Lord Beaconsfield had dissolved parliament immediately after his return from Berlin, it is possible that the wave of popularity which had been raised by his success would have borne him forward to a fresh victory in the constituencies.

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  • The new minister had been swept into power on a wave of popular favor, but he inherited from his predecessors difficulties Glad- in almost eyery quarter of the world; and his own stones language had perhaps tended to increase them.

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  • Beneath these layers are masses of salter water, through which a thermal wave of small amplitude is slowly propagated to the bottom by conduction.

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  • It was this motive which first induced the Thessalians to leave their home in Epirus and descend into this district, and from this movement arose the expulsion of the Boeotians from Arne, and their settlement in the country subsequently called Boeotia; while another wave of the same tide drove the Dorians also southward, whose migrations changed the face of the Peloponnese.

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  • In other places they wave green branches, and on the south coast, pour water over their heads, a custom noticed by Cook at Mallicolo (New Hebrides).

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  • The amount of retardation does not admit of accurate computation, owing to the uncertainty both as to the amount of the oceanic friction from which it arises and of the exact height and form of the tidal wave, the action of the moon on which produces the effect.

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  • The Greek " key " pattern found on objects in Peruvian graves was not necessarily borrowed from Greece, nor did Greeks necessarily borrow from Aztecs the " wave " pattern which is common to both.

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  • Airy extended Fresnel's hypothesis to directions inclined to the axis of uniaxal crystals by assuming that in any such direction the two waves, that can be propagated without alteration of their state of polarization, are oppositely elliptically polarized with their planes of maximum polarization parallel and perpendicular to the principal plane of the wave, these becoming practically plane polarized at a small inclination to the optic axis.

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  • But this wave of the ebbing Moslem tide had less force than the Almorvide, and fell back both sooner and farther than its predecessor.

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  • A wave of Clericalism and ultra-Catholic influences swept over the land, affecting the middle classes, the universities and learned societies, and making itself very perceptible also among the governing classes and both dynastic parties, Liberals and Conservatives.

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  • Also that between 2800 and 2600 B.C. a second wave from Arabia took the same course, covering not only Babylonia, but also Syria and Palestine and probably also Egypt (the Hyksos).

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  • Earthquakes of great violence were recorded in 1847 and 1881 (with tidal wave), and mild shocks were experienced in December 1899.

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  • Much of his time was given to writing and revising the lectures on the wave theory of light which he had delivered at Johns Hopkins University, Baltimore, in 1884, but which were not finally published till 1904.

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  • In optics, he developed the wave theory, and his name is associated with the simple dispersion formula.

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  • It was at the close of the Wealden period that a second evolutionary wave swept over the vegetation of the world.

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  • If the contact springs can be moved round the disk so as to vary the instant of contact, we can plot out the value of the observed instantaneous voltage of the machine or circuit in a wavy curve, showing the wave form of the electromotive force of the alternator.

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  • The voltmeter needle may then be made to record its variations graphically on a drum covered with paper and so to delineate the wave form of the current.

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  • As the brushes are slowly shifted over on the revolving contact so as to select different phases of the alternating electromotive force, the pen follows and draws a curve delineating the wave form of that electromotive force or current.

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  • This ray can be received on a screen or photographic plate, and thus the wave form of the current is recorded.

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  • If this patch is also given a displacement in the direction of right angles by examining it in a steadily vibrating mirror, we see a wavy or oscillatory line of light which is an optical representation of the wave form of a current in the coils embracing the Braun tube.

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  • Her heart beat double time as a wave of passion surged over her.

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  • His black hair reflected sunlight at the peak of every wave.

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  • The Black God climbed a wave as he might a grassy knoll and picked his way across the choppy waters near the beach, walking atop the transparent shallows towards the dark depths beneath the black clouds.

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  • Keep up, or I'll leave you in this dimension! the Black God barked from atop another wave.

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  • The wave of magic had short-circuited his Guardian powers and dropped him on the other side of Ireland.

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  • When the first wave of guests were satiated and Maria on board to do duty with the next horde, Cynthia surprised her husband further by changing into a dress and asking if he wanted to accompany her to church.

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  • There was no verbal reply—only a returning wave of her light.

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  • I love you, E. While placing the ring on the top of his index finger, a wave of profound sadness washed over him.

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  • The cured adhesive must then have sufficient strength to hold the device to the board during the solder wave process.

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  • What's more, we were among the first wave of Foundation Trusts and are at the forefront of the modernisation agenda.

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  • You are excused, " dismissing the two guiltless triplets with a wave of the terrible eyeglass; and w.. .

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  • Should not we allow it to celebrate its successes rather than wave farewell to it?

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  • Suppose father doesn't like shock wave flash object download him!

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  • I feel very much a child of second wave feminism.

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  • The blue wave on the white fess represents the River Darent, from which the town of Dartford took its name.

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  • Over this weekend, all our target seats will be working flat-out to maximize our support in the first wave of postal votes.

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  • Ned Minns Ned is developing a novel floating oscillating water column wave energy converter.

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  • To measure relative drift velocities of small and large floes due to wind and wave action.

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  • Who knows, maybe the latest wave of freshers ' flu is the product of a biological weapons experiment?

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  • It describes the recent modifications to the wave flume which make the apparatus more effective.

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  • He said his own forebears had come from central Europe in a previous wave of immigration, no doubt to escape persecution.

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  • As is always the case with liberals, they have been plunged to the Left by the first and still formless revolutionary wave.

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  • The offshore test area is arranged to allow several different designs of wave and tidal generator to be tested.

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  • This is the perfect way to wave goodbye to the port on the start of your sailing.

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  • Naked children run out to wave at us and shout greetings, jumping into the river to body surf the wake behind us.

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  • Second course Circles crash through the tidal wave of monster post grunge rock that is Why.

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  • These include local wave climate; sources of sediment feed and the role of coastline orientation in creating an anticlockwise tidal gyre.

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  • Hello Everyone Hope everyone is enjoying the heat wave and aren't to sizzled!

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  • Vegetables on Ice for Miniature Piglets The recent heat wave has been exhausting for everyone and animals are no exception.

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  • And everywhere we go, Michael gets a wave and a cheery hello from the people who are making things happen.

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  • Are spatial memories strengthened in the human hippocampus during slow wave sleep?

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  • The motion at the joints produced by the wave is resisted by hydraulic rams, which pumps high-pressure oil through hydraulic motors.

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  • Research fields include small-scale hydropower, wind, solar, wave, and bioenergy as well as social dimensions of energy use.

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  • This method enables identification of wave modes observed in electric field components.

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  • You will be less likely to experience this at first, because wave flights are very illusive.

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  • Victron Combi pure wave inverter and charger with large domestic battery bank (4 x 110a) enabling 240v on the move.

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  • Square wave inverters simply change a DC current to a square AC waveform.

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  • Toy Story The phrase vinyl junkie has taken on a whole new meaning with the rise of the new wave toy culture.

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  • Further, these bars can be assembled into stacks, having a continuous wave output of several kilowatts.

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  • The first wave of the program would involve fourteen leas sharing over £ 2bn (from the £ 5.1bn ).

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  • But in any subsequent wave it could prove a lifesaver.

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  • It is called extracorporeal shock wave lithotripsy (ESWL ), and was introduced in the mid-1980s.

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  • A peaceful application of shock waves is the use of focussed shocks to shatter kidney stones, a procedure known as shock wave lithotripsy.

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  • The first wave of new inhabitants comprised three platies, and the 'fish with nine lives ' a kuhli loach.

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  • In the newly released Bulletin data, the ISC has computed 3567 surface wave magnitudes.

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  • Being regularly washed by wave action at every high tide, the softer marl is soon eroded away from the harder calcite fossils.

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  • Firstly, to simulate the asymmetry of the hair cell response, the motion of the basilar membrane is half wave rectified.

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  • Recent observational evidence indicates a systematic reduction in gravity wave fluxes in the upper mesosphere and lower thermosphere from solar minimum to solar maximum.

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  • Keyphrases wave front sensing, confocal microscopy, multiphoton microscopy.

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  • Back to Sticky Fingers with the new mudguard for Treacle to wave his magic paint wand over.

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  • George W Bush is riding on the crest of this wave of political myopia.

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  • It has seen a new wave of legal actions against perpetrators and on behalf of survivors.

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  • And by now there was a whole new wave of Brighton bands and punk venues, which were bursting at the seams.

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  • The current new wave of Fixed-Mobile Convergence is set to change this perception radically.

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  • Every week the press was on the lookout for the next new wave.

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  • Abstract LISA will be the first space-borne gravitational wave observatory.

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  • A government headed by Leon Blum of the Socialist Party took office on 2 June amidst a wave of strikes and factory occupations.

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  • The millimeter wave electric company technology has been dubbed " wireless optics " since it provides gigabit high-speed throughput between transmission sites.

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  • Employing these tactics enabled each wave of two-ship pairs to engage tanks selectively and avoid dropping ordnance on less significant targets.

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  • In particular Cy12R1 includes envelope orography and orographic gravity wave drag based on the Palmer et al.

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  • This caused a wave of star formation to spread outwards in a ring.

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  • Other abnormal responses Square wave response Seen in cardiac failure, constrictive pericarditis, cardiac tamponade and valvular heart disease.

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  • The phase speed of the L and R wave modes have the same phase velocity at this frequency.

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  • Made from durable plastic with 5mm thick walls they offer more excitement than straight slides due to the wave in the middle.

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  • The surfer actually rides inside the cylindrical portion of the wave.

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  • My mother was a part of a wave of Californian fine art silk-screen printmakers.

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  • The League of Gentlemen opt out of the challenge to become the progenitors of a new wave of British film horror.

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  • The project will combine analytical studies and numerical modeling tools for simulating wave propagation in fractured porous rock.

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  • Of particular interest is the modeling of ultrasonic wave propagation through heterogeneous media.

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  • In 1899, Fitzgerald asked him about electromagnetic wave propagation around a sphere, which Marconi's experiments showed to occur.

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  • Both use an ultrasonic wave propagation sensor mounted in the liquid medium.

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  • Next we need to select a suitable full wave bridge rectifier.

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  • This is described by women as a wave of heat passing over the body, sometimes accompanied by redness, sweating or tingling.

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  • The main benefit would be to provide more precise input to modeling of the contribution of wave refraction to inshore wave climate.

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  • Silicon, with lower resistivity, also tends to operate at lower frequencies, in the ' Slow wave ' mode.

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  • A rock revetment was constructed in 1992 in an attempt to address the basic cause of slope instability, i.e. basal wave erosion.

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  • Indeed their uncompromising attitude and widescreen vision makes the current crop of 80s new wave revivalists look distinctly underpowered.

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  • The Conservatives were kicked out last year in a wave of popular revulsion that has almost no equal in a modern democracy.

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  • If you contract your muscles, your body may stay rigid in places and not join the wave.

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  • The Wave also has rounded handles to ensure comfort during long use.

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  • Maximum wave run-up is reported at 104 feet above normal tidal levels.

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  • Only around 50 of the first wave of 1,000 troops reached the safety of cover behind a shallow sandbank on the shoreline.

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  • Among the many users of machine learning systems are a new wave of computer scientists calling themselves " data miners " .

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  • A further source might have been wave and tidal scour of the eroding margins of Spartina marshes.

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  • It is a life on the ocean wave, not one that seeks the seclusion of a safe harbor.

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  • Numerical studies like this can help to understand wave propagation phenomena observed on field recordings in volcano seismology.

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  • The giant blast wave hurled two of the German gunners from their towers, and they lay senseless on the crown of the dam.

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  • Using these analytical solutions, the effect of the velocity shear on the damping rate of the surface wave can easily be investigated.

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  • The spectrum contains just one component, at 256 Hz, because the pure tone is a single sine wave.

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  • Ska is much more than 2-Tone or 3rd wave ska is much more than 2-Tone or 3rd wave ska.

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  • There was an attempt at the tequilla slammer Mexican wave world record.

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  • Get it if desired, then snipe the first wave of soldiers with normal guns.

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  • It employs a continuously generated wave of molten solder to form the joints.

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  • It includes entries for directional wave spectra, one-dimensional wave spectra and short term statistics.

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  • Previously it was described how a partial standing wave is formed against a wall.

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  • Sato described evidence that there is a gravity wave source in the southern winter polar stratosphere.

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  • The cross section is calculated by partial wave summation.

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  • Two of the best candidates are a shock wave from a nearby supernova or from the passage through a spiral arm.

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  • Surfing can be carried out on a variety of equipment, including surfing can be carried out on a variety of equipment, including surfboards, bodyboards, wave skis, kneeboards and surf mats.

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  • This was around 93 and there was a new wave of industrial techno coming through.

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  • A third wave of 617 Squadron's aircraft was now invading German territory, as an airborne reserve to fill in the gaps.

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  • Today's wave of destruction also underlines the futility of trying to defeat terror by ever more repressive legislation.

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  • The show features a theremin - an instrument you don't actually touch - just wave your hands at.

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  • This has indicated the presence of atmospheric gravity wave signatures in the high-latitude thermosphere.

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  • Short Wave Receiver Now anyone can enjoy the thrill of the sounds of radio broadcasts picked up on a home-built receiver!

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  • News began to filter through and we heard that an earthquake in Sumatra had caused a tidal wave.

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  • With Aids in Africa, you can't see the tidal wave of despair.

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  • In summer, it bakes in its own heat before the arrival of autumn heralds a wave of powerful typhoons.

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  • Short wave ultraviolet light has a photo oxidization effect that destroys chloramines & other toxic by-products of chlorine, without adding additional chemical products.

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  • In addition, they are also limited by geography - wave power is only technically viable in coastal locations.

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  • By making the reference bias voltages applied to the diodes equal, an approximate square wave output is obtained from a sine wave input.

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  • He has ridden the wave of mobile phone roll-out, a market now worth more than £ 3 billion in the UK alone.

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  • Each successive wave of punk wanted to be seen to be more ' punk ' than the previous one.

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  • In that case a sine wave type vibration did show up on the photographs.

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  • Add costs to from hcc wave data the take-up in the period.

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  • On the plus side, all the beating gave us the opportunity to wave to some of the other wayfarers whose path we crossed.

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  • A power cruiser which nose dived into the back of a large wave shattering the windscreen with shards of glass cutting the crew.

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  • At a few hundred degrees above absolute zero, objects radiate strongly in the shorter wave infrared.

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  • If the primary wave be represented by = e-ikx the component rotations in the secondary wave are '1'3= P (- AN y) N r2 ' cwi= r x D y N 'y)' lw2=P (- AD + 6,N z2 - x2 ' D r N r2 where ik3T e-ikr _ P - 4 r The expression for the resultant rotation in the general case would be rather complicated, and is not needed for our purpose.

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  • Accordingly, if E be the energy of the primary wave, dE 87-2n (D' - D) 2 T2 E dx 3 D2%4 ' whence E = Eoe-hx (II) where h = 8?r 2 n (D' - D)2T2 3 D2 x 4, (12) If we had a sufficiently complete expression for the scattered light, we might investigate (12) somewhat more directly by considering the resultant of the primary vibration and of the secondary vibrations which travel in the same direction.

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  • The actual calculation follows a similar course to that by which Huygens's conception of the resolution of a wave into components corresponding to the various parts of the wave-front is usually verified (see Diffraction Of Light).

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  • Exner attributes the double daily maximum, which is largely a consequence of the 12-hour wave, to a thin layer near the ground, which in the early afternoon absorbs the solar radiation of shortest wave length.

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  • Marconi's system of electric wave telegraphy consists therefore in setting up at the transmitting station the devices just described for sending out groups of damped electric waves of the above kind in long or short trains corresponding to the dash or dot signals of the Morse alphabet.

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  • The effect was to print a dash or dot on a strip of telegraphic paper, according as the incident electric wave train lasted a longer or shorter time.

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  • It is seen that as the coupling k becomes small these two wavelengths coalesce into one single wave length.

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  • Fleming devised a method which has practical advantages in both preventing the arc and permitting the oscillatory currents to be controlled so as to make electric wave signals.

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  • The fifth type of wave detector depends upon the peculiar property of rarefied gases or vapours which under some circumstances possess a unilateral conductivity.

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  • If a simple receiving antenna as above described is set up with an oscillation-detecting device attached to it, we find that it responds to incident electric waves of almost any frequency or damping provided that the magnetic force of the wave is perpendicular to the antenna, and of sufficient intensity.

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  • The problem of syntonic electric wave telegraphy is then to construct a transmitter and a receiver of such kind that the receiver will be affected by the waves emitted by the corresponding or syntonic transmitter, but not by waves of any other wavelength or by irregular electric impulses due to atmospheric electricity.

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  • The success so far achieved in isolating electric wave telegraphic stations has been based upon the principles of electric resonance and the fact that electric oscillations can be set up in a circuit having capacity and considerable inductance by feeble electromotive impulses, provided they are of exactly the natural frequency of the said circuit.

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  • Forms of open circuit wave meter have been devised by Slaby and by Fleming.

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  • Slaby's wave meter consists of a helix of non-insulated wire wound on a glass tube.

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  • The Fleming closed circuit wave meter, called by him a cymometer, consists of a sliding tube condenser and a long helix of wire forming an inductance; these are connected together and to a copper bar in such a manner that by one movement of a handle the capacity of the tubular condenser is altered in the same proportion as the amount of the spiral inductance which is included in the circuit.

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  • In any case the people are driven out by some adverse change; and when the urgency is great they may require to drive out in turn weaker people who occupy a desirable territory, thus propagating the wave of migration, the direction of which is guided by the forms of the land into inevitable channels.

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  • But these did not mingle readily with the indigenous population; as each wave of barbarian invasion fell back, these refugees returned to their mainland homes, and it required the pressure of many successive incursions to induce them finally to abandon the mainland for the lagoon, a decision which was not reached till the Lombard invasion of 568.

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  • The theoretical basis upon which this formula was devised (the corpuscular theory) was shattered early in the 19th century, and in its place there arose the modern wave theory which theoretically invalidates Newton's formula.

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  • Now 2 area 17r=2Xr; so that, in order to reconcile the amplitude of the primary wave (taken as unity) with the half effect of the first zone, the amplitude, at distance r, of the secondary wave emitted from the element of area dS must be taken to be dS/Xr (1) By this expression, in conjunction with the quarter-period acceleration of phase, the law of the secondary wave is determined.

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  • That the amplitude of the secondary wave should vary as r1 was to be expected from considerations respecting energy; but the occurrence of the factor A1, and the acceleration of phase, have sometimes been regarded as mysterious.

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  • If we conceive the primary wave to be broken up at the plane of the disk, a system of Fresnel's zones can be constructed which begin from the circumference; and the first zone external to the disk plays the part ordinarily taken by the centre of the entire system.

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  • When the upper limit is infinity, so that the limits correspond to the inclusion of half the primary wave, C and S are both equal to by a known formula; and on account of the rapid fluctuation of sign the parts of the range beyond very moderate values of v contribute but little to the result.

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  • Hence, in accordance with the rule for compounding vector quantities, the resultant vibration at B, due to any finite part of the primary wave, is represented in amplitude and phase by the chord joining the extremities of the corresponding arc (U2-0.1).

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  • Let 0 be any point in the medium situated at a distance from the point 0 1 which is large in comparison with the length of a wave; let O/O=r, and let this line make an angle 0 with the direction of propagation of the incident light, or the axis of x, and 4, with the direction of vibration, or axis of z.

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  • The occurrence of the factor (Xr)- 1, and the necessity of supposing the phase of the secondary wave accelerated by a quarter of an undulation, were first established by Archibald Smith, as the result of a comparison between the primary wave, supposed to pass on without resolution, and the integrated effect of all the secondary waves (§ 2).

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  • Since the Euphrates valley has no mountains, En-lil would appear to be a god whose worship was carried into Babylonia by a wave of migration from a mountainous country - in all probability from Elam to the east.

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  • Thus the housing of the poor has been improved, though this difficult problem is yet far from solution; not the large towns only, but the larger villages also, are cleansed and drained; food has been submitted to inspection by skilled officers; water supplies have been undertaken on a vast scale; personal cleanliness has been encouraged, and with wonderful success efforts have been made to bring civilized Europe back from the effects of a long wave of Oriental asceticism, which in its neglect and contempt of the body led men to regard filth even as a virtue, to its pristine cleanliness under the Greeks and Romans.

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  • Friedrich Delitzsch brought into notice three tablets, of the age of the first dynasty of Babylon, in which he read the names of Yaa'-ve-ilu, Ya-ve-ilu, and Ya-u- um -ilu (" Yahweh is God "), and which he regarded as conclusive proof that Yahweh was known in Babylonia before 2000 B.C.; he was a god of the Semitic invaders in the second wave of migration, who were, according to Winckler and Delitzsch, of North Semitic stock (Canaanites, in the linguistic sense).'

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  • Survival of fair hair and complexion and light eyes among the upper classes in Thebes and some other localities shows that the blonde type of mankind which is characteristic of north-western Europe had already penetrated into Greek lands before classical times; but the ascription of the same physical traits to the Achaeans of Homer forbids us to regard them as peculiar to that latest wave of pre-classical immigrants to which the Dorians belong; and there is no satisfactory evidence as to the coloration of the Spartans, who alone were reputed to be pure-blooded Dorians in historic times.

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  • Thus waves are propagated along OX, each wave consisting of one push and one pull, one wave emanating from each complete vibration to and fro of the source AB.

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  • In loud sounds, such as a peal of thunder from a near flash, or the report of a gun, the effect may be considerable, and the rumble of the thunder and the prolonged boom of the gun may perhaps be in part due to the breakdown of the wave when the crest of maximum pressure has moved up to the front, though it is probably due in part also to echo from the surfaces of heterogeneous masses of air.

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  • But v/V =u/U from equation (2) and w =Eu/U from equation (3) Then 2wv/V = ZEu 2 /U 2 = 2 pu t from equation (6) Then in the whole wave the potential energy equals the kinetic energy and the total energy in a complete wave in a column 1 sq.

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  • If the two interfering waves, being still of same length X, be in opposite phases, or sõ that one is in advance of the other by 2X, and consequently one produces in the air the opposite state of motion to the other, then the resultant wave is one of the same length X, but the excursions of the particles are decreased, being the difference between those due to the component waves as in fig.

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  • The "dielectric constant" of a medium is its specific inductive capacity, and on the electromagnetic theory of light it equals the square of its refractive index for light of infinite wave length (see Electrostatics; Magneto-Optics).

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  • The jobbing of land by the official clique, whose frequent intermarriages won for them the name of "The Family Compact," the undoubted grievance of the "Clergy Reserves" and the well-meaning high-handedness and social exclusiveness of military governors, who tried hard but unavailingly to stay the democratic wave, soon revived political discord, which found a voice in that born agitator, William Lyon Mackenzie.

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  • In these and other cases the Phrygian character was more or less Hellenized; but wave after wave of religious influence from Asia Minor introduced into Greece the unmodified "barbarian" ritual of Phrygia.

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  • It is a level, straight-backed line of sombre mountain ridge, from the crest of which, as from a wall, the extraordinary configuration of that immense loess deposit called the Chul can be seen stretching away northwards to the Oxus - ridge upon ridge, wave upon wave, like a vast yellow-grey sea of storm-twisted billows.

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  • Similarly, though not with equal precision, the last wave of influenza was shown to have started from central Asia in the spring of 1889, to have travelled through Europe from east to west, to have been carried thence across the sea to America and the Antipodes, until it eventually invaded every inhabited part of the globe (see Influenza).

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  • Since the index of refraction varies with the colour or wave length of the light (see Dispersion), it follows that a system of lenses (uncorrected) projects images of different colours in somewhat different places and sizes and with different aberrations; i.e.

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  • The advance-guard of this wave of pastoral Negroids, in fact primitive Bantu, mingled with the Bushmen and produced the Hottentots.

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  • According to Huygens's principle (see Diffraction) each aether particle, set vibrating by an incident wave, can itself act as a new centre of excitement, emitting a spherical wave; and similarly each particle on this wave itself produces wave systems. All systems which are emitted from a single source can by a suitable optical device be directed that they simultaneously influence one and the same aether particle.

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  • I like to contend with wind and wave.

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  • The pulse detonation wave engine offers a marked increase in efficiency and a simplification of design over current rocket and ramjet engines.

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  • Rangers fans across the Atlantic would tune into short wave radio to catch action of their heroes back home.

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  • Now a massive wave of solidarity has raised the demand for the resignation of the governor of Oaxaca.

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  • The retarding force is caused by the compression of the air in the shock wave.

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  • Psi, the retarded wave, which travels forward in time, is standard solution.

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  • Erosion by wave attack is combated by a wide range of revetment systems.

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  • The result was a massive wave of revulsion against the war.

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  • A square wave is a voltage or a current change in which the waveform has square, i.e. right-angled, corners.

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  • In the midst of new wave and 80's rock it causes little more than a ripple in a puddle.

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  • The Salter 's Edinburgh duck works by rotating around a long linkage spanned across wave crests.

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  • Tsunami wave run-up was as high as 170 feet above normal tidal levels.

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  • Their information raises fears of a wave of sabotage attacks in the event of a war in Iraq.

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  • Importantly, this loss of translation symmetry is a prerequisite for the existence of a saltatory wave.

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  • Among the many users of machine learning systems are a new wave of computer scientists calling themselves " data miners ".

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  • Her power flooded through the scorched earth in a soothing wave of relief.

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  • That interestingly is roughly the contracted price for Pelamis sea snake wave device.

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  • He viewed the solitary wave as a self-sufficient dynamic entity, a " thing " displaying many properties of a particle.

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  • The pebbles, from which shingle beaches are made, is formed by wave action in the general process of coastal erosion.

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  • In August 1980 Walesa led the Gdansk shipyard strike which gave rise to a wave of strikes over much of the country.

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  • The study shows the visualization of shock wave propagation in an underwater explosion scenario.

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  • Wavegen 's Limpet, on the island of Islay is the first grid connected shoreline wave energy converter.

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  • The sampled sine wave input signal should be plotted in the upper graph.

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  • This is not a pure sine wave supply, we cannot be held responsible for any damage caused to computer equipment and personal appliances.

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  • They wave the siphon back and forth to detect where the smell of food is coming from.

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  • Ska is much more than 2-Tone or 3rd wave ska.

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  • Any food with chocolate is best saved for cooler days. I have seen children smothered in chocolate in a heat wave.

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  • The force on a panel due to a sound wave in air could be described by Newtons Second Law of Motion.

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  • When off is specified, the input wave (or the stapes velocity) is passed on directly to the next stage.

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  • These leftovers from the star 's old age have been subsequently run over and lit up by the supernova blast wave.

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  • Surfing can be carried out on a variety of equipment, including surfboards, bodyboards, wave skis, kneeboards and surf mats.

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  • The electron wave is created by exciting a core hole electron with synchrotron radiation or x-rays.

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  • Today 's wave of destruction also underlines the futility of trying to defeat terror by ever more repressive legislation.

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    0
  • The show features a theremin - an instrument you do n't actually touch - just wave your hands at.

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  • A marked increase in the disturbance of alpha, delta and theta wave patterns in the brain.

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  • Short Wave Receiver Now anyone can enjoy the thrill of the sounds of radio broadcasts picked up on a home-built receiver !

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  • The tidal wave of violence in Gotham proves to be the work of someone the Batman trusted.

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  • With Aids in Africa, you ca n't see the tidal wave of despair.

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  • A wave of disorientation hit him, much stronger than before, and he toppled forward.

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  • Findings indicated a possible reduction of wave drag for transonic wings, however an increase in viscous drag was also observed.

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  • In Chapter 4 (p 88) we saw that the output from a triode squarer is not a perfect square wave.

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  • Down in the trough of the wave, then up again on the crest; that was Paul 's experience.

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  • A tsunami wave can begin either way, with a crest or with a trough.

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  • Of course, the great revolt of December 1995 ushered in a wave of social movements which brought the Socialists back into power.

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  • Catching the wave will require visionary leadership in Africa.

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  • The method of solution based on investigation the wave equation related to the operator.

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  • On the plus side, all the beating gave us the opportunity to wave to some of the other Wayfarers whose path we crossed.

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  • After a wave of local protests and widespread international condemnation, Grameen withdrew from the agreement.

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  • The light wave talk was followed by an informative and thought provoking talk on yagi antenna construction for the 1.2 and 2.3GHz bands.

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  • Although your child may be excited about starting a new school, that excitement may fly right out the door with you as you wave goodbye.

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  • They also tend to be able to read each other's emotions on a completely different wave length.

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  • Digital camcorders are the wave of the future, continuing to increase in popularity as the old technology of analog video cameras falls to the wayside.

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  • They also charge shipping, but customers have the option to wave the fee by picking up the fireworks directly from their warehouse in Orange Park, Florida.

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  • If you want to bid on an item, be prepared to wave your arms and card around to get the auctioneer's attention (once the bidding opens, of course).

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  • A cat's tail movement is more genteel, and more like a wave than a wag.

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  • A mother cat will wave her tail when her kittens are getting too robust, warning them that she does not want to play.

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  • Pat the Bunny by Dorothy Kunhardt is a short, interactive story about things a little boy and girl can do, such as pat the bunny, put on mommy's ring and wave bye-bye.

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  • Two of the popular massage options are the dual variable speed massage and the wave massage.

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  • When light strikes the cell, a specific portion or "band" of the light wave is absorbed by the material.

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  • The restoration was completed in 1974 and touted as setting off a wave of similar projects across America.

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  • The 70s inspired a new wave in the field of skincare, resulting in women's attention to face creams that included ingredients like avocado oil and various natural moisturizers.

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