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

Front Cover
University Press, 1879 - 454 pages
 

Contents

AN ATTEMPT TO EXPLAIN SOME OF THE PRINCIPAL PHENOMENA OF ELECTRICITY
1
3 COMPARISON OF THE CHARGES OF COATED PLATES
3
4 REPULSION AS SQUARE OF REDUNDANT FLUID
4
Infinite body
5
Molecular constitution of
6
Repulsion of a cone on a particle at the vertex 711
7
Cases of Attraction and Repulsion
8
Escape of electricity into the
9
Electromotive force required to produce a spark
10
The repulsion between two bodies electrified to the same degree ought
11
Capacity of a long narrow cylinder
12
Force between two bodies over or under charged 1315
13
Lemma XVI
14
Glass as a dielectric
15
Influence of condensers
16
Theory of the experiment with trial plates
17
PAGE OF
18
Experiment of the globe and hemispheres
19
Equilibrium of electricity in a globe 2027
20
Two circles
21
Square
22
Three parallel plates
23
Capacity as affected by walls of room
24
Two plane parallel plates 2838
28
Cor 1
30
Experiment to test the theory Fig
31
Cor 3
36
Canals of incompressible fluid 3953
39
Plan of usual disposition of vials and bodies to be tried
42
PAGE
44
Pressure of electric fluid against a surface
54
Fig 2 Repulsion of a particle on a column
61
Charges of similar bodies as the n1 power of their corresponding diame
67
Charge of a thin flat plate independent of its thickness
73
Flat circular plate
78
Equilibrium of electricity in bodies communicating by a canal is
84
Canals may be curved as well as straight
90
Whether the conditions of equilibrium are the same for two bodies com
94
Illustration from the equilibrium of
96
Attraction and repulsion 106117
102
ACCOUNT OF THE EXPERIMENTS
104
Comparison with the globe
108
The Leyden jars
110
Limits between which the law of force must lie n2
112
Advantages of the method 246
115
On the cases in which bodies receive electricity from or part with
124
Do Dec 14 1771
129
Intention of the experiments
130
Consideration of the effects of external bodies on the globe and the plates
132
Tin cylinder
136
23
140
Hypothesis about the relative effect of surrounding bodies on the capa
142
New apparatus for the comparison of capacities Fig 20
144
Advantage of the second method
150
Correction of the area for spreading of electricity
156
Effect of heat on glass
180
Charge of glass at different temperatures
181
Effect of want of conductivity of the straws
182
386
189
Electric resistance of salt and fresh water and of iron wire
195
Conditions requisite for a spark and for attraction and repulsion
201
Shocks from 1st Torpedo 596
205
1st Night
216
Coated trial plate of two plates of glass with rosin between
222
Double plate
223
Accumulation at the edge is greater in plates of air than in glass plates
224
comparison with Art 455
232
Definition of the ratio of the charges of two bodies illustrated by
237
E+F+G with I K L M
243
The gauge electrometer
248
501
250
The bodies to be tested were chosen of nearly equal capacity
254
Leakage of the Leyden vials
260
Diminution of shock by passing through different liquors
262
Six different arrangements
266
Lanes electrometer compared with straw and paper electro
269
Effect of the thickness of a plate on its capacity
272
552
275
Bearing on the theory
278
Coated plate compared with nonelectric body with strong and weak
280
Oblong plate
284
Comparison of Lanes electrometer with light straw electro
291
Intensity of shocks 32 Iron wire and salt water
294
MEASURES
298
First leather Torpedo 599
312
Experiments without any Torpedo 613
319
Comparison of charges of jars and battery method of repeated communi
321
Comparison of water purged of air and plain water
326
To find what power of the velocity the resistance is proportional
332
RESISTANCE OF COPPER WIRE
338
41 x 345 compared with double B by sliding coated plate
344
Increase of charge by induction 652
347
Correction for spreading with electricity strong and weak 665
353
RESULTS ON RESISTANCE
359
Other saline solutions
360
Charge of coated glass at different temperatures Fig
366
Globe and circle PAGE 362
368
Theory of this method 582
403
The two flat conductors between which the plate of air lies or in modern
404
Arrangement of the apparatus
406
Mode of charging the battery
414
Interpretation of the result
418
Torpedo in a basket in sand shock through wet shoes and through net 421424
421
437
433
Structure of the electric organ
434
Pump water rain water salt in 1000 sea water 684
443
Sea salt
444
538
449
Cor Distribution probably nearly the same as in plate of air of equiva
452
List of thickness and coatings of some plates see p 27
12

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