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

Front Cover
University Press, 1879 - Electricity - 454 pages
 

What people are saying - Write a review

We haven't found any reviews in the usual places.

Contents

Am Attempt to explain some of the principal phenomena of Electricity
1
3 Comparison or the Charges or Coated Plates
3
Large tin circle Double plate
5
Repulsion of a cone on a particle at the vertex 711
7
Force between two bodies over or under charged 1315
13
Double plate A oblong 17 9 x 13
17
Equilibrium of electricity in a globe 2027
20
Two plane parallel plates 2838
28
Resultsl comparison with Art 455
29
Canals of incompressible fluid 3953
39
Pressure of electric fluid against a surface
54
Spreading of electricity on cemented plates Art
61
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
Charge of a condenser little affected by the presence of an over
89
Whether the conditions of equilibrium are the same for two bodies com
94
PAGE OF Ms ARTICLES
95
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
Fig I If the fluid uniformly spread on a circular plate
140
List of plates of glass 592
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 593
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
Cor
176
Effect of heat on glass To face p
180
Cor 2
181
Lemma Potential of two equal particles compared with that of their
187
Effect of floor and walls of the room
193
Condition of electric equilibrium between conductors in electric com
199
Advantage of the second method
200
Electrification by induction
205
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
Estimate of the accuracy of the experiments
261
PAGE OF MS ARTICLES
269
Glass coated with various substances r
270
Comparison with theory
277
Allowance for connecting wire 647
278
Comparison of disk with sphere
283
Comparison of Lanes electrometer with light straw electro
291
Measures
298
Spreading of electricity on the surface of the glass Fig 21
300
Increase of charge by induction 652
303
Earthconnexion
307
First leather Torpedo 599
312
Correction of the area for spreading of electricity 812
313
Second leather Torpedo under water
318
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
D E F M K L 656
349
First hypothesis Electricity penetrates into the glass to a certain depth
350
Table of glass plates 673
355
Comparison of the plate D with the circle of 36 inches diameter with
356
PAOE
368
Charge of coated glass at different temperatures Fig 28 300
370
The charge of a coated plate depends on the substance of which it is made
376
Charge of hollow cylinders of glass
382
Fifth hypothesis on the communication of electricity between conductor
384
Comparison of the force required to produce an equal divergence of
388
Walshs experiments on the Torpedo 395
395
4JO
399
Conditions requisite for a spark and for attraction and repulsion 401408
401
Theory of this method 582
403
The two flat conductors between which the plate of air lies or in modern
404
Artificial Torpedo
409
Shocks in air and under salt water Law of divided currents 415420
415
The testing electrometer 244
418
Torpedo in a basket in sand shock through wot shoes and through net 421424
421
Structure of the electric organ
434
Pump water rain water salt in 1000 sea water
443
Sea salt
444
Trials of wires Single wire 96 x 19 Two wires 48 x 1 at 36 and 18
447
491
449

Other editions - View all

Common terms and phrases

Popular passages

Page lxvi - AN ATTEMPT TO EXPLAIN SOME OF THE PRINCIPAL PHENOMENA OF ELECTRICITY, BY MEANS OF AN ELASTIC FLUID*.
Page 374 - An Essay on the application of Mathematical Analysis to the Theories of Electricity and Magnetism...
Page 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...
Page 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.
Page 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.
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 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...
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.
Page 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.

Bibliographic information