Cicero actually saw this contrivance and describes it (De Rep. i.
This excellent time-saving contrivance has also been used in Gill's apparatus for measuring astrographic plates (see below).
It involves many novel features: the receiving electromagnet is of peculiar construction and remarkable efficiency and the transmitting apparatus has a contrivance to prevent unintentional repetitions of a letter through the operator holding his finger too long on a key.
Gian Galeazzos duchy was a masterpiece of mechanical contrivance, the creation of a scheming intellect and lawless will.
The speaker seeks to make intelligible the appearance of art and contrivance in the world as a result of a natural settlement of the universe (which passes through a succession of chaotic conditions) into a stable condition, having a constancy in its forms, yet without its several parts losing their motion and fluctuation.
The arches bear on the convex outer side the delicate arborescent gills, and on the concave inner side develop a membranous septum with vermicular perforations, a special sifting or filtering contrivance through which the water absorbed by the mouth has to pass before reaching the respiratory organs of the branchial apparatus.
This is effected by raising up a small mound of rich compost around it, a contrivance which induces the graft to emit roots into the surface soil.
During his residence in London he applied himself to the discovery of methods for curing smoky chimneys and the contrivance of improvements in the construction of fireplaces.
He married a daughter of Tarquinius and succeeded to the throne by the contrivance of his mother-in-law, Tanaquil, who was skilled in divination and foresaw his greatness.
Practically any vessel may serve as a receiver - test tube, flask, beaker, &c. If noxious vapours come over, it is necessary to have an air-tight connexion between the condenser and receiver, and to pro vide the latter with an outlet tube leading to an absorption column or other contrivance in which the vapours are taken up. If the substances operated upon decompose when heated in air, as, for example, the zinc alkyls which inflame, the air within the apparatus is replaced by some inert gas, e.g.
The " pan " is now only used by prospectors, while the " cradle " and " tom " are practically confined to the Chinese; the sluice is considered to be the best contrivance for washing gold gravels.
A simpler form of collector, now almost universally used, is a plain brass tube which is driven into the bottom of the sea by the weight of the sounding lead, and in which the deposit may be retained by a valve or other contrivance, though in many cases friction alone suffices to hold the punched-out core.
In spite of its high cost, the drum weir furnishes a valuable hydraulic contrivance for situations where it is very important to be able to close a weir of moderate height against a strong current and to regulate with ease and precision the discharge past a weir.
Notched sticks (shing-chram) and knotted cords were in current use, but the latter contrivance is only faintly alluded to in the Tibetan records, while of the other there are numerous examples.
289), who admittedly had it from Waterton, and stated that it was "an admirable contrivance of nature to increase the delicacy of the organ of smell;" but R.
Any contrivance that serves to interrupt radiation, though it may not keep the temperature much above freezing, will be found sufficient.
Logic must go, but so also must the state, as a specially-privileged and eternal order of things, as anything more than a contrivance serving certain purposes of general utility.
Further, by causing the hour circle, and with it the polar axis, to rotate by clockwork or some equivalent mechanical contrivance, at the same angular velocity as the earth on its axis, but in the opposite direction, the telescope will, apart from the effects of refraction, automatically follow a star from rising to setting.
(D) The declination axis is mounted on a forked piece or other similar contrivance attached to a prolongation of the upper pivot of the polar axis; the telescope is mounted between the pivots of the declination axis.
But by placing Paley's facts in a new light, the theory of evolution has deprived his argument of its force, so far as it applies the idea of special contrivance to individual organs or to species.
109) is a contrivance for varying and adjusting the velocity ratio communicated between a pair of parallel shafts by means of a belt.
Intersecting axes are coupled by a contrivance of Hookes, known as the universal joint, which belongs to the class of linkwork (see fig.
Sleep of Zeus, by the contrivance of Hera.
The allotment of the land-tax to units (juga) of equal value whatever might be the area, was a contrivance similar in character.
The composition of his various satires shows no negligence, but rather excess of elaboration; but it produces the impression of mechanical contrivance rather than of organic growth.
In the drawing of character, in the invention of felicitous phrase, in the contrivance of verbal music, he is deficient.
There is good reason to believe that the system was as effectual in the prevention and punishment of crime and in the redress of wrongs as any other human contrivance has ever been.