The Scientific Papers of the Honourable Henry Cavendish, F.r.s Volume 1 the Electrical ResearchesCUP Archive |
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الصفحة viii
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الصفحة xxii
... length of one large tube , the area of whose bore is equal to that of the nine small ones 125. Comparison of the diminution of the shock by passing through iron wire or through salt water 126. Measures of glass tubes used in pp . 123 ...
... length of one large tube , the area of whose bore is equal to that of the nine small ones 125. Comparison of the diminution of the shock by passing through iron wire or through salt water 126. Measures of glass tubes used in pp . 123 ...
الصفحة 6
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الصفحة 20
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الصفحة 24
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المحتوى
INTRODUCTION BY THE EDITOR | 1 |
Distribution of hypothetical fluids in spheres | 3 |
PAGE | 4 |
Zero of potential | 5 |
Molecular constitution of | 6 |
Idea of potential | 7 |
Cases of Attraction and Repulsion | 8 |
Escape of electricity into the | 9 |
Double plate | 230 |
Demonstration of this by Lemma 4 Fig | 233 |
p | 240 |
Method of operation Fig 14 | 241 |
Capacity of the trial plate | 247 |
List of thickness and coatings of some plates see p 27 | 249 |
520 | 243 |
Thick white 2nd rosin D and F of Nairne and the two double plates together | 247 |
CAVENDISHS WRITINGS ON ELECTRICITY | 10 |
Two circular disks far apart on the same axis | 11 |
Capacity of a long narrow cylinder | 12 |
Repulsion of two columns | 13 |
Table omitted | 14 |
Glass as a dielectric | 15 |
Mutual influence of condensers | 16 |
General theory of the experiment with trial plates | 17 |
Coulombs researches | 18 |
Experiment on the charge of a globe between two hemispheres | 19 |
Capacity of a disk of sensible thickness | 20 |
Capacity of two circles on same axis | 21 |
Capacity of a square | 22 |
Charge of the middle one of three parallel plates | 23 |
Method of the experiments | 24 |
Tin cylinder and wires compared with theory | 25 |
Influence of different temperatures on glass | 26 |
Comparison of measurements of dielectric capacity | 27 |
Computed charge of cylindrical condenser | 28 |
On Electrical Fishes | 29 |
Consideration of the effects of external bodies on the globe and the plates | 36 |
Increase of charge by induction 652 | 38 |
Repulsion of a cone on a particle at the vertex | 41 |
As it appeared by the foregoing experiment that the Florence flask contained | 42 |
Fig 3 Action of a uniform cylinder on an external point | 46 |
Circular disk | 48 |
Whether the charge of plate E bears the same proportion to that of another body | 51 |
Charge of a thin flat plate independent of its thickness | 56 |
K+L+M with A B and C also D + E + F with K L and M also small ground | 57 |
Molecular constitution of | 65 |
Experiment of p 61 tried with small ball blown to the end of a thermometer | 67 |
Whether the middle of three parallel plates communicating together is much | 73 |
Effect of points on discharge | 76 |
ARTICLES | 79 |
Hypothesis of an electric fluid | 80 |
PRELIMINARY PROPOSITIONS | 82 |
From Ms No 5 | 84 |
p | 102 |
The fluid acts at a distance but does not itself extend to any perceptible distance from | 110 |
Cor 2 | 115 |
ACCOUNT OF THE EXPERIMENTS | 118 |
Adjustable Trial Plate | 127 |
Insulators of waxed glass | 134 |
Advantages of the second method | 135 |
Intention of the experiments 236 | 139 |
Machine for trying Leyden vials | 151 |
Second method of trying the experiment | 156 |
Cor 3 | 160 |
Twelve plates from Nairne A to M | 162 |
D E F G 655 | 163 |
Application of this hypothesis to the three circles and the globe | 171 |
Results 661 | 173 |
Another reasonanalogy of Newtons fits | 177 |
Effect of heat on glass | 182 |
Effect of an overcharged body | 183 |
Effect of earth connexion the same as if it were infinitely long | 189 |
Method of the experiment 238 | 211 |
Globe and circle 19 4 of pasteboard Sliding plates | 213 |
p | 224 |
Estimation of the degree of accuracy of the result | 227 |
The gauge electrometer | 248 |
The bodies to be tested were chosen of nearly equal capacity | 254 |
Comparison of the plate D with the circle of 36 inches diameter with two different | 259 |
Leakage of the Leyden vials | 260 |
Six different arrangements | 266 |
550 | 267 |
Effect of the thickness of a plate on its capacity | 272 |
Whether the force with which two bodies repel is as the square of the redundant | 275 |
Bearing on the theory | 278 |
Separation of Henlys electrometer when fixed in the usual way and on upright | 281 |
Comparison of square plate with disk | 283 |
Comparison of conducting powers of sat sol S S and rain water | 287 |
Comparison with theory | 289 |
Charge of 1st battery of Nairne 584 | 291 |
New apparatus for the comparison of capacities Fig 20 | 295 |
From Ms No 13 | 297 |
Difference between different kinds of glass in this respect | 301 |
Shocks from 1st Torpedo 596 | 303 |
Instantaneous spreading of electricity on the surface electric light around the edge | 307 |
Tuesday July 4 1775 Second leather Torpedo touched in various ways 612 | 309 |
RESULTS ON RESISTANCE p 349 | 311 |
Computed charge of cylindric vials | 313 |
Method of experiment 616 | 314 |
Discrepancy probably due to spreading | 319 |
Resistance of solutions of other salts 626 | 322 |
Table of the same plates with other coatings | 325 |
CALIBRATION OF TUBES | 328 |
518 | 329 |
Effect of accumulation near the edge insensible | 331 |
Results 646 | 349 |
Other saline solutions | 350 |
Water with different quantities of salt in it 696 | 351 |
Globe and disk compared as regards capacity LIFE OF CAVENDISH BY THOMAS YOUNG INDEX TO CAVENDISH MANUSCRIPTS p | 352 |
The place in which the canal meets the disk is indifferent only when the fluid | 364 |
Observations | 366 |
The edges of the coatings kept at constant temperature | 368 |
electrodes | 375 |
Theory of compound plates | 379 |
Appearance of the three green cylinders | 385 |
Experiment to test the theory Fig 31 | 387 |
Charge of coated glass at different temperatures Fig | 387 |
Comparison of the force required to produce an equal divergence of the two electro | 388 |
389 | 389 |
Effect of want of conductivity of the straws | 394 |
Conditions requisite for a spark and for attraction and repulsion 401408 | 401 |
Artificial Torpedo 409 | 409 |
Circles 36 18 5 9 5 651 | 411 |
the following page is a reduced copy The words buried at Derby are written in pencil | 412 |
Shocks in air and under salt water Law of divided currents 415420 | 415 |
416 | 416 |
418 | 418 |
Torpedo in a basket in sand shock through wet shoes and through net 421424 | 421 |
Fig 2 Repulsion of a particle on a column | 427 |
Structure of the electric organ | 436 |
Mr J Cooling Jun Churchwarden of All Saints informs me that there is no slab or monu | 439 |
Three coated plates D 05908 | 442 |
| 449 | |
| 450 | |
| 452 | |
عبارات ومصطلحات مألوفة
attraction and repulsion battery bees wax canals of incompressible capacity Cavendish circle coated plate column communication conductor consequently contain crown glass cylinder deficient fluid degree of electrification density diameter discharge disk disposed double plates electric fluid electric organs electricity spreads electrometer electromotive force experiment fluid in AB force glass plate greater hemispheres impelled incompressible fluid inner globe LEMMA less Leyden vial manner overcharged body particle pass piece pith balls placed plane plate air plate of glass positively electrified potential Prop proportion quantity of electricity quantity of fluid quantity of redundant ratio redundant fluid repulsion is inversely rosin salt saturated seems sensibly shock side silk strings sliding plate small in respect space spread uniformly square substance suppose surface theory thickness tinfoil torpedo trial plate tricity tried tube whole