The Electrical Researches of ... Henry Cavendish, F. R. S.: Written Between 1771 and 1781, Ed. from the Original Manuscript ...University Press, 1879 - 454 من الصفحات |
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الصفحة vii
... column Lemma XIII . Repulsion of two columns " Lemma XIV . 145 146 147 Lemma xv ( Fig . 3 ) . Action of a uniform cylinder on an external point Cor . Potential of middle and end . 148 149 Prop . xxx1 ( Fig . 3 ) . Charge of cylinder ...
... column Lemma XIII . Repulsion of two columns " Lemma XIV . 145 146 147 Lemma xv ( Fig . 3 ) . Action of a uniform cylinder on an external point Cor . Potential of middle and end . 148 149 Prop . xxx1 ( Fig . 3 ) . Charge of cylinder ...
الصفحة lvii
... column of the liquid could be altered by sliding the wire in the straight part of the tube . In order to send electric discharges of equal quantity and equal electromotive force through two different tubes Cavendish chose six jars of ...
... column of the liquid could be altered by sliding the wire in the straight part of the tube . In order to send electric discharges of equal quantity and equal electromotive force through two different tubes Cavendish chose six jars of ...
الصفحة lxi
... columns of mercury . He found that the shock was diminished in passing through a mixed column in which the length of salt water was 218 inches as much as in passing through a single column of the same size whose length was 22.94 inches ...
... columns of mercury . He found that the shock was diminished in passing through a mixed column in which the length of salt water was 218 inches as much as in passing through a single column of the same size whose length was 22.94 inches ...
الصفحة 24
... column of uniform matter ; and let the dia- meter of the column be so small , that the repulsion of the plate AB on it shall not be sensibly different from what it would be , if all the matter in it was collected in the axis : the force ...
... column of uniform matter ; and let the dia- meter of the column be so small , that the repulsion of the plate AB on it shall not be sensibly different from what it would be , if all the matter in it was collected in the axis : the force ...
الصفحة 25
... column EC , is to its repulsion on the whole column DC , very nearly as EC- " to AC3- " 61 ] LEMMA X. If we now suppose all the matter of the plate to be collected in the circumference of the circle , so as to form an infinitely slender ...
... column EC , is to its repulsion on the whole column DC , very nearly as EC- " to AC3- " 61 ] LEMMA X. If we now suppose all the matter of the plate to be collected in the circumference of the circle , so as to form an infinitely slender ...
المحتوى
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عبارات ومصطلحات مألوفة
balls separated battery better than salt brass canals of incompressible capacity Cavendish charge circ circle coated plate column communication computed conductor conducts consequently contain crown glass cylinder deficient fluid degree of electrification density diam diameter discharge disk doub electric fluid electric organs electromotive force experiment force glass plate greater hemispheres inches inches long incompressible fluid infinite inner globe Lane's Leyden vial manner matter Nairne observed particle pass piece pith balls placed plate air plate of glass positively electrified potential Prop proportion quantity of electricity quantity of fluid quantity of redundant ratio redundant fluid repelled resistance salt in 69 seemed sensib shock side silk strings sliding plate small in respect space specific gravity spread uniformly square suppose surface theory thickness tinfoil torpedo touched trial plate tricity tried tube undercharged
مقاطع مشهورة
الصفحة lxvi - AN ATTEMPT TO EXPLAIN SOME OF THE PRINCIPAL PHENOMENA OF ELECTRICITY, BY MEANS OF AN ELASTIC FLUID*.
الصفحة 376 - An Essay on the application of Mathematical Analysis to the Theories of Electricity and Magnetism...
الصفحة 4 - ... which I call the electric fluid, the particles of which repel each other and attract the particles of all other matter with a force inversely as some less power of the distance than the cube ; the particles of all other matter also repel each other and attract those of the electric fluid, with a force varying according to the same power of the distances. Or, to express it more concisely, if you look upon the electric fluid as matter of a contrary kind to other matter...
الصفحة xlv - He would undertake the most laborious researches in order to clear up a difficulty which no one but himself could appreciate, or was 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 these researches of Cavendish remained unknown...
الصفحة lx - Arts. 57-1, 575, 629, 686. intensity, are contained in the Report of the British Association for 1876. The laws of the strength of currents in multiple and divided circuits are accurately stated by Cavendish in Arts. 417, 597, 598. Cavendish applied the same method of experiment to compare the resistance of the same liquid at different temperatures*, and he found that "salt in 69 [of water] conducts 1'97 times better in heat of 105 than in that of 58£." He also found that "the proportion of the...
الصفحة 8 - WE. 80] COR. V. Let now the body H consist of a globe, whose diameter equals AB ; the globe being situated in such a manner, that the canal CG, if continued, would pass through its center; and let the electric attraction and repulsion be inversely as the square of the distance, the quantity of redundant fluid in the globe will be...
الصفحة xxxv - The following extracts will indicate the chief points of electrical interest. " The vigour of the fresh taken Torpedos at the Isle of R6 was not "able to force the torpedinal fluid across the minutest tract of air; " not from one link of a small chain, suspended freely, to another ; not " through an almost invisible separation, made by the edge of a pen" knife in a slip of tinfoil pasted on sealing-wax.