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

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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
Fig 2 Repulsion of a particle on a column
5
Repulsion of a cone on a particle at the vertex 711
7
Force between two bodies over or under charged 1315
13
Cor 2
17
Equilibrium of electricity in a globe 2027
20
Experiment to test the theory Fig
31
Cor 5
41
Plan of usual disposition of vials and bodies to be tried
42
Diminution of shock by passing through different liquors
43
Fig 3 Action of a uniform cylinder on an external point
61
147
67
Cor 4
80
Canals may be curved as well as straight
90
Comparison of the charges of four rosin plates with those of circles
93
Whether the conditions of equilibrium are the same for two bodies com
94
PAGE OF MS ARTICLES
95
Illustration from the equilibrium of
96
Cor 7
97
FIG PAGE
104
Attraction and repulsion 106117
106
The Leyden jars
110
Advantages of the method
115
Trial Plate
116
On the cases in which bodies receive electricity from or part with
118
New apparatus for the comparison of capacities Fig 20 295
120
Insulators of waxed glass
124
Leakage of the Leyden vials
126
Cantons and Franklins experiments
127
Dec 16 1771 Conductivity of stone squares
129
Fifth experiment Charge of two small circles compared with that of
133
Allowance for connecting wire 647
137
Hypothesis about the relative effect of surrounding bodies on the capa
142
List of plates of glass 592
144
Machine for trying Leyden vials
145
The trial plate 297
147
Ten plates from Nairne 593
157
Slit coatings
159
Comparison of different cylinders
161
Experiment to determine whether the air between the plates is charged
164
On the Leyden vial
168
342
170
Density more nearly uniform than if there had been
179
Effect of heat on glass To face p
180
Effect of want of conductivity of the straws
182
386
189
Shocks from 1st Torpedo 596
205
Effect of an overcharged body
209
1st Night
216
The electricity of glass is here taken to be positive
217
Two tin circles of 9 3 compared with one of 18 5
222
The charging jar
223
Advantages of the second method
229
Second experimentA piece of wood within a vessel formed of
235
Increase of charge by induction 652
240
Method of operation Fig 14
241
PAGE OF
250
Crown A and C compared with A B and C of Nairne
253
MEASURES
298
Advantage of the second method
299
These methods abandoned
305
Conditions requisite for a spark and for attraction and repulsion
310
Recapitulation of the theory of coated plates
311
First leather Torpedo 599
312
Experiment of p 61 tried with small ball blown to the
316
Comparison of D + E + F when close together and when six inches apart
317
Experiments without any Torpedo 613
319
Comparison of charges of jars and battery method of repeated communi
321
on thick plates and 0 09 on thin plates
323
Verification of the theory of spreading
326
To find what power of the velocity the resistance is proportional to 629
336
Results 646
343
41 x 345 compared with double B by sliding coated plate
344
H 658
349
Whether charge of Leyden vial bears the same proportion
353
Table of glass plates 673
355
Fixed air in water 693
360
Comparison with the usual strength of electrification
361
NOTES BY THE EDITOR NOTE PAGE 1 On the theory of the electric fluid
362
Distribution of hypothetical fluids in spheres c
368
Canals of incompressible fluid
375
Charges of two parallel disks close together
378
Infinite body 879
380
Zero of potential
382
Cases of Attraction and Repulsion
383
Escape of electricity into the air
384
Electromotive force required to produce a spark
386
Two circular disks
387
Capacity of a long narrow cylinder
393
The battery and its charge
397
Two cylinders
400
Lemma XVI
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
On the Thoughts concerning Electricity
409
Early form of Cavendishs Theory of Electricity
411
Experiment of the globe and hemispheres
417
The testing electrometer 244
418
Torpedo in a basket in sand shock through wet 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 c
430
Comparison of measurements of dielectric capacity
432
On Electrical Fishes
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
Salt and fresh water
444
Other saline solutions
445
Sea salt
446
Globe and circle
447
Cor Distribution probably nearly the same as in plate of air of equiva
452
c

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