Journal of the Society of Arts, Količina 7Society of Arts, 1859 |
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Priljubljeni odlomki
Stran 311 - Correspondence of the Bath and West of England Society for the Encouragement of Agriculture, Arts, Manufactures and Commerce.
Stran 260 - A man is not to sell his own goods under the pretence that they are the goods of another man; he cannot be permitted to practise such a deception, nor to use the means which contribute to that end.
Stran 208 - Peignot mentions an instance where, in a public library but little frequented, twenty-seven folio volumes were perforated in a straight line by the same insect (probably one of these species), in such a manner that on passing a string through the perfectly round hole made by it these twentyseven volumes could be raised at once.5 The animals last mentioned also destroy prints and drawings, whether framed or preserved in a portefeuille...
Stran 294 - National Repository for the Exhibition of specimens of new and improved Productions of the Artisans and Manufacturers of the United Kingdom," and which took place in the Royal Mews, Charing-cross.
Stran 299 - ... in consequence of the effect of communication which supervenes in the conducting mass upon the polarization of the particles of that body (1675). 1678. That therefore induction can only take place through or across insulators; that induction is insulation, it being the necessary consequence of the state of the particles and the mode in which the influence of electrical forces is transferred or transmitted through or across such insulating media.
Stran 259 - You may express the same principle in a different form, and say that no man has a right to dress himself in colors, or adopt and bear symbols to which he has no peculiar or exclusive right, and thereby personate another person for the purpos'e of inducing the public to suppose, either that he is that other person, or that he is connected with and selling the manufacture of such other person, while he is really selling his own.
Stran 347 - ... rubbing one on the upper and the other on the under side of the commutator are also very distinctly seen. The field-magnet consists of several' thin steel plates of horse-shoe form, with a pair of soft-iron pole-pieces, so shaped as nearly to surround
Stran 299 - AH these considerations impress my mind strongly with the conviction, that insulation and ordinary conduction cannot be properly separated when we are examining into their nature; that is, into the general law or laws under which their phenomena are produced. They appear to me to consist in an action of contiguous particles, dependent on the forces developed in electrical excitement ; these forces bring the particles into a state of tension or polarity, which constitutes both induction and insulation...
Stran 128 - P., moved a vote of thanks to the officers of the Society for their valuable and unremitting services during the past year.
Stran 302 - Wheatstone's experiment, were immediately connected with two large insulated metallic surfaces exposed to the air, so that the primary act of induction, after making the contact for discharge, might be in part removed from the internal portion of the wire at the first...