The Electrical Researches of ... Henry Cavendish, F. R. S.: Written Between 1771 and 1781, Ed. from the Original Manuscript ... |
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Page viii
... electric fluid 195 • The fluid acts at a distance but does not itself extend to any perceptible distance from electrified bodies 196 Proof of this , and objections to the hypothesis of electric ... Attraction and repulsion CONTENTS .
... electric fluid 195 • The fluid acts at a distance but does not itself extend to any perceptible distance from electrified bodies 196 Proof of this , and objections to the hypothesis of electric ... Attraction and repulsion CONTENTS .
Page ix
... Attraction and repulsion of electrified bodies ** Electrification by induction The electric spark Vacuum formed by the spark Statement of the theory of one electric fluid ACCOUNT OF THE EXPERIMENTS . ( 1 ) INVESTIGATION OF THE LAW OF ...
... Attraction and repulsion of electrified bodies ** Electrification by induction The electric spark Vacuum formed by the spark Statement of the theory of one electric fluid ACCOUNT OF THE EXPERIMENTS . ( 1 ) INVESTIGATION OF THE LAW OF ...
Page xiii
... Electric resistance of salt and fresh water , and of iron wire Lines of flow of the discharge of the Torpedo Conditions requisite for a spark and for attraction and repulsion Artificial Torpedo • The battery and its charge Mode of ...
... Electric resistance of salt and fresh water , and of iron wire Lines of flow of the discharge of the Torpedo Conditions requisite for a spark and for attraction and repulsion Artificial Torpedo • The battery and its charge Mode of ...
Page xxiii
... Attraction and Repulsion 9. Escape of electricity into the air 10. Electromotive force required to produce a spark 11. Two circular disks 368 375 378 • 379 380 382 383 384 386 387 12. Capacity of a long narrow cylinder 13. Two cylinders ...
... Attraction and Repulsion 9. Escape of electricity into the air 10. Electromotive force required to produce a spark 11. Two circular disks 368 375 378 • 379 380 382 383 384 386 387 12. Capacity of a long narrow cylinder 13. Two cylinders ...
Page xxxii
... attraction of gravitation ; and it was not till 1787 that Bennett described in the Philosophical Transactions the gold leaf electro- meter , by means of which Volta afterwards demonstrated the different electrification of the different ...
... attraction of gravitation ; and it was not till 1787 that Bennett described in the Philosophical Transactions the gold leaf electro- meter , by means of which Volta afterwards demonstrated the different electrification of the different ...
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Common terms and phrases
attraction and repulsion battery body H canals of incompressible Cavendish charge circle coated plate column communication computed conductor consequently contain crown glass cylinder deficient fluid degree of electrification density diameter disposed electric attraction electric fluid electric organs electrified body electrometer equilibrio experiment fluid in AB force greater hemispheres impelled inches incompressible fluid infinite distance inner globe LEMMA Leyden vial manner nearly equal negatively electrified observed overcharged body pass pith balls placed plane plate of glass positively electrified Prop proportion proposition quantity of electricity quantity of fluid quantity of redundant ratio redundant fluid redundant matter repulsion is inversely rosin salt seems shock side sliding plate small in respect space spread uniformly square substance suppose surface theory thickness tinfoil torpedo touched trial plate tricity tried tube undercharged body whole wire Rr
Popular passages
Page xxxvi - He, who by Reason became an electrician, will hear with reverence " of an instinctive electrician, gifted in his birth with a wonderful " apparatus, and with the skill to use it*. " However I may respect your talents as an electrician, it is cer" tainly for knowledge of more general import that I
Page xlv - even aware of, and we cannot doubt that the result of his enquiries, when successful, gave him a certain degree of satisfaction. But it did not excite in him that desire to communicate the discovery to others which, in the case of ordinary men of science, generally ensures the publication of their results. How completely
Page xxv - DUKE OF DEVONSHIRE. Fellow of the Royal Society, and of the Society OF ANTIQUARIES OF LONDON. Trustee of the British Museum and Foreign Associate in the First Class of the INSTITUTE at Paris.
Page xlvii - which Cavendish had done. About the close of the century Dr Thomas Young, whose acquaintance with all branches of science was as remarkable for its extent as for its profundity, says of this neutral point : "It was from the situation of this point that Lord Stanhope first
Page xxxiii - was for a pointed one, the matter was referred, in 1772, to the Royal Society, and by them as usual to a committee, who after consultation presented a method conformable to Dr Franklin's theory *. The Committee consisted of Cavendish, Dr, afterwards Sir William Watson ; Dr Franklin, Mr J. Robertson (Clerk and Librarian to the Royal Society) ; Mr Wilson and Mr
Page 426 - the short wire. A Leyden jar was charged from a machine in another room, the shell was charged from the jar, and the jar was taken out of the room again. The small brass ball was then connected to earth for an instant so as to give it a negative charge by induction, and was then
Page 59 - provided the depth b/3 is very small in respect of the thickness of the glass ; and if the repulsion is inversely as some lower power than the square, it will be attracted with much more force by etf>, than it is repelled by
Page 429 - and solving equations (16), (17), we find for the charge of the inner shell ° (18) In the original experiment of Cavendish the hemispheres forming the outer shell were removed altogether from the globe and discharged. The potential of the inner shell or globe would then be
Page 429 - 19 ) In the form of the experiment as repeated at the Cavendish Laboratory, the outer shell was left in its place, but was connected to earth, so that A = 0. In this case we find for the potential of the inner shell when tested by the electrometer b)-f(ab)
Page xxxii - See Franklin's Works, Vol. v, p. 430, note. electrician, for a method to prevent a like accident to their magazines at Purfleet. Mr Wilson having advised a blunt conductor, and it being understood that Dr Franklin's opinion, formed upon