The Electrical Researches of ... Henry Cavendish, F. R. S.: Written Between 1771 and 1781, Ed. from the Original Manuscript ... |
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Page xxxi
... inches di- ameter , supported on a glass stick as an axis . By pulling the string still more , the hemispheres were ... long , even in a lumber room . A facsimile of Cavendish's sketch of it is given at page 104. His own account of the ...
... inches di- ameter , supported on a glass stick as an axis . By pulling the string still more , the hemispheres were ... long , even in a lumber room . A facsimile of Cavendish's sketch of it is given at page 104. His own account of the ...
Page xxxiv
... inches long , and as finely tapered and acutely pointed as possible . " We give these directions , " they conclude , " being persuaded , that " elevated rods are preferable to low conductors terminated in rounded " ends , knobs , or ...
... inches long , and as finely tapered and acutely pointed as possible . " We give these directions , " they conclude , " being persuaded , that " elevated rods are preferable to low conductors terminated in rounded " ends , knobs , or ...
Page l
... inches in diameter , and as he had already proved that the charges of similar bodies are in the ratio of their ... long and 0.185 diameter , but afterwards he always used a wire of the same diameter , but 72 inches long , the capacity of ...
... inches in diameter , and as he had already proved that the charges of similar bodies are in the ratio of their ... long and 0.185 diameter , but afterwards he always used a wire of the same diameter , but 72 inches long , the capacity of ...
Page lxv
... long and valuable series of experiments on the magnetic properties of forged iron , blistered steel , and cast iron . Some bars were got from Elwell 31 inch ... inches distant from the center of the needle , 91 ° to west of usual magnetic ...
... long and valuable series of experiments on the magnetic properties of forged iron , blistered steel , and cast iron . Some bars were got from Elwell 31 inch ... inches distant from the center of the needle , 91 ° to west of usual magnetic ...
Page 18
... to con- tain less electric fluid than it did before , and that adjacent to the opposite surface RS will contain more than before . It must be observed , that when a sufficient quantity 18 [ 43 FIRST PAPER . 5, and 36 inches diameter.
... to con- tain less electric fluid than it did before , and that adjacent to the opposite surface RS will contain more than before . It must be observed , that when a sufficient quantity 18 [ 43 FIRST PAPER . 5, and 36 inches diameter.
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Common terms and phrases
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
Popular passages
Page lxvi - AN ATTEMPT TO EXPLAIN SOME OF THE PRINCIPAL PHENOMENA OF ELECTRICITY, BY MEANS OF AN ELASTIC FLUID*.
Page 376 - An Essay on the application of Mathematical Analysis to the Theories of Electricity and Magnetism...
Page 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...
Page 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...
Page 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...
Page 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...
Page 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.