The Electrical Researches of ... Henry Cavendish, F. R. S.: Written Between 1771 and 1781, Ed. from the Original Manuscript ...

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University Press, 1879 - 454 من الصفحات

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3 Comparison or the Charges or Coated Plates
3
Repulsion of a cone on a particle at the vertex 711
7
Force between two bodies over or under charged 1315
13
Equilibrium of electricity in a globe 2027
20
Two plane parallel plates 2838
28
Canals of incompressible fluid 3953
39
Charge of a condenser little affected by the presence of an over
52
Pressure of electric fluid against a surface
54
Charges of similar bodies as the n 1 power of their corresponding diame
67
Charge of a thin flat plate independent of its thickness
73
Equilibrium of electricity in bodies communicating by a canal is
84
Cor 176
85
Whether the conditions of equilibrium are the same for two bodies com
94
11
99
Effect of temperature 691
102
Fig PAGE
104
Comparison with the globe 333
108
Advantages of the method 246
115
Trial Plate
116
New apparatus for the comparison of capacities Fig 20 205
120
3 On the cases in which bodies receive electricity from or part with
124
Allowance for connecting wire 647
137
Fig I If the fluid uniformly spread on a circular plate
140
List of plates of glass 693
144
Machine for trying Leyden vials
145
Repulsion of two columns
146
Second method 298
149
Prop xxxn Fig 4 Charge of two equal cylinders at a finite distance
152
Ten plates from Nairne 693
157
Lemma xvn Fig 7 Concave plate compared with flat one
158
Slit coatings
159
Density increasing towards the circumference
164
6 On the Leyden vial
168
Fig 10 Penetration of glass by fluid
170
Canals may be curved as well as straight
180
Table of Nairnes plates 671
182
Lemma Potential of two equal particles compared with that of their
187
Effect of floor and walls of the room
194
Illustration from the equilibrium of air
200
Shocks from 1st Torpedo 696
205
Theory of condensers
206
Effect of an overcharged body
209
Statement of the theory of one electric fluid rio fluid 2H216
216
Capacity of the trial plate
217
Mechanism for performing the required operations
222
Circle of 18 x 18 _ 202 _ 10
223
Second method of trying the experiment
228
Plan of usual disposition of vials and bodies to be tried 466
229
Limits between which the law of force must lie n 2 zs
235
Method of operation Fig 14
241
Double plate 175 x 285 tried with small sliding trial plate
244
liv
245
Form of electrometer used in the later experiments Fig 30
249
The bodies to be tested were chosen of nearly equal capacity
255
Estimate of the accuracy of the experiments
261
PAGE OF MS ARTICLES
269
Glass coated with various substances r
270
On the compound plates 677
273
Discrepancy probably due to spreading
319
Comparison of charges of jars and battery method of repeated communi
321
Table of the same plates with other ooatinga
325
Comparison of water purged of air and plain water 624
326
Spreading not uniform throughout its extent
328
Consideration of the effects of external bodies on the globe and the plates
331
To find what power of the velocity the resistance is proportional to 629
336
Hypothesis about the relative effect of surrounding bodies on the capa
338
Results 635
343
Table of Results with plates of air 313
344
First hypothesis Electricity penetrates into the glass to a certain depth
350
Comparison of the plate D with the circle of 36 inches diameter with
356
Besults on resistance
359
Water with different quantities of salt in it 696
361
NOTES BY THE EDITOR NOTB PAOH 1 On the theory of the electric fluid
362
Distribution of hypothetical fluids in spheres c
368
Charge of coated glass at different temperatures Fig 28 300
370
Table of the charges of plates of other substances
371
Canals of incompressible fluid
375
Difference between thick plates and thin ones
377
Charges of two parallel disks close together
378
Infinite body
379
Molecular constitution of air
380
Table of results with cylindric vials
383
Fifth hypothesis on the communication of electricity between conductor
384
Electromotive force required to produce a spark
386
Two circular disks
387
The Leyden jars
389
Capacity of a long narrow cylinder
393
Walshs experiments on the Torpedo 395
395
Two cylinders
400
Conditions requisite for a spark and for attraction and repulsion 401408
401
Glass as a dielectric
402
Theory of this method 582
403
The two flat conductors between which the plate of air lies or in modern
404
Theory of the experiment with trial plates
406
Artificial Torpedo
409
Early form of Cavendishs Theory of Electricity
411
Shocks in air and under salt water Law of divided currents 415420
415
Experiment of the globe and hemispheres
417
The testing electrometer 244
418
Torpedo in a basket in sand shock through wot shoes and through net 421424
421
Capacity of a disk of sensible thickness
423
Two circles
425
Square
426
Three parallel plates
427
Capacity as affected by walls of room
429
Tin cylinder o 130
430
Comparison of measurements of dielectric capacity
432
On Electrical Fishes 133
433
Structure of the electric organ
434
Excess of redundant fluid on positive side above deficient fluid on negative side
437
Pump water rain water salt in 1000 sea water 684
443
Sea salt
444
Other saline solutions 115
448
Copper wire on glass reel 036
449
Spreading of electricity on cemented plates Art 302 485
450
Two tin circles of 98 compared with one of I85
452

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الصفحة lxvi - AN ATTEMPT TO EXPLAIN SOME OF THE PRINCIPAL PHENOMENA OF ELECTRICITY, BY MEANS OF AN ELASTIC FLUID*.
الصفحة 374 - An Essay on the application of Mathematical Analysis to the Theories of Electricity and Magnetism...
الصفحة 2 - ... 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 453 - Mathematical and Physical Papers. By Sir W. THOMSON, LL.D., DCL, FRS, Professor of Natural Philosophy, in the University of Glasgow. Collected from different Scientific Periodicals from May, 1841, to the present time.
الصفحة 453 - The Electrical Researches of the Honourable Henry Cavendish, FRS Written between 1771 and 1781, Edited from the original manuscripts in the possession of the Duke of Devonshire, KG, by J. CLERK MAXWELL, FRS Demy 8vo. cloth, i8s. Hydrodynamics, a Treatise on the Mathematical Theory of Fluid Motion, by HORACE LAMB, MA, formerly Fellow of Trinity College, Cambridge; Professor of Mathematics in the University of Adelaide.
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 6 - 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.
الصفحة 453 - A Treatise on the Theory of Determinants and their Applications in Analysis and Geometry. By ROBERT FoRSYTH SCOTT, MA, Fellow of St John's College.

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