The Annals of Electricity Magnetism and Chemistry and Guardian of Experimental Science, Band 9Sherwood, Gilbert and Piper |
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Seite 4
... glass rods , covered with sealing wax , or with some other insulating varnish , and fastened on the wooden base 2 , 2 , by female screws underneath . The column itself is composed of 600 groups , formed of zinc plates 0.7 inch diameter ...
... glass rods , covered with sealing wax , or with some other insulating varnish , and fastened on the wooden base 2 , 2 , by female screws underneath . The column itself is composed of 600 groups , formed of zinc plates 0.7 inch diameter ...
Seite 9
... glass tubes of this kind are sensibly as good conductors as metals . The different conducting faculties of bodies proceed from different degrees of adhesion of the electric fluid to them but beside this difference among bodies , there ...
... glass tubes of this kind are sensibly as good conductors as metals . The different conducting faculties of bodies proceed from different degrees of adhesion of the electric fluid to them but beside this difference among bodies , there ...
Seite 10
... glass hooks covered with sealing wax , with which they are placed on the hooks of the column . I shall give a general idea of these trials under the follow- ing head . Exp . 11. The substances of this class having more or less con ...
... glass hooks covered with sealing wax , with which they are placed on the hooks of the column . I shall give a general idea of these trials under the follow- ing head . Exp . 11. The substances of this class having more or less con ...
Seite 11
... glass for this purpose , than that of applying to the column rods of glass covered with them . I shall also give only a general idea of this class of trials under the following head . Exp . 12. It is very seldom , that a naked glass rod ...
... glass for this purpose , than that of applying to the column rods of glass covered with them . I shall also give only a general idea of this class of trials under the following head . Exp . 12. It is very seldom , that a naked glass rod ...
Seite 12
... glass are of the same nature , only reversed . Exp . 13. A glass rod covered with sealing wax must be rubbed so gently , that , when applied to the column , it only increases the divergence of the gold leaves at the negative side ...
... glass are of the same nature , only reversed . Exp . 13. A glass rod covered with sealing wax must be rubbed so gently , that , when applied to the column , it only increases the divergence of the gold leaves at the negative side ...
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Häufige Begriffe und Wortgruppen
ammonia animal apparatus appears atmosphere ball battery body brass carbonic acid cause charge chemical action circuit circumstances clouds coating colour column combustion communication contained copper cylinder decomposed decomposition degree diameter direction discharge distance effect elec electric cloud electric current electric fluid electric matter electrified electrometer electroscope employed equal experiments extremity fact fire force galvanic galvanometer glass gold heat hydrogen hygrometer immersed inches increase insulated intensity iron wire kite length Leyden jar light liquid machine magnetism manner means metal millimetres motion needle negative nitric acid observed obtained oxide oxygen oxygen gas paper particles passing peroxide phenomena Philosophical piece pile plate platina platinum platinum wire polarization pole positive potash potassa precipitated prime conductor produced Professor proportion quantity silver solution spark stannic acid striking substances sulphuric acid supposed surface temperature theory tion tube vapour voltaic whilst zinc
Beliebte Passagen
Seite 427 - ... a wire down the outside of the building into the ground, or down round one of the shrouds of a ship, and down her side till it reaches the water?
Seite 414 - To determine the question whether the clouds that contain lightning are electrified or not, I would propose an experiment to be tried where it may be done conveniently.
Seite 151 - By exposure to excessive cold the primitive fungi are killed, but their seed still retains vitality, and, if immersed in snow, which appears to be their native soil, they reproduce new fungi, which are generally of a red colour. The Philosophical Transactions for 1823 contains the paper by Mr. Bauer already alluded to, entitled " Microscopical Observations on the Suspension of the Muscular Motions of the Vibrio tritici," which forms the Croonian Lecture for that year.
Seite 336 - The declaration was in the usual form, and the defendants pleaded thereto, first, that they were not guilty; secondly, that the plaintiff was not the...
Seite 414 - ... or 30 feet, pointed very sharp at the end. If the electrical stand be kept clean and dry, a man standing on it when such clouds are passing low, might be electrified and afford sparks, the rod drawing fire to him from a cloud.
Seite 377 - Fig. 9,) big enough to contain a man and an electrical stand. From the middle of the stand let an iron rod rise and pass bending out of the door, and then upright twenty or thirty feet, pointed very sharp at the end. If the electrical stand be kept clean and dry, a man standing on it, when such...
Seite 484 - ... will give a spark at a greater distance. Two gun-barrels united, and as highly electrified, will give a spark at a still greater distance. But if two gun-barrels electrified will strike at two inches distance, and make a loud snap, to what a great distance may 10,000 acres of electrified cloud strike and give its fire, and how loud must be that crack?
Seite 414 - If any danger to the man should be apprehended (though I think there would be none) let him stand on the floor of his box, and now and then bring near to the rod the loop of a wire that has one end fastened to the leads, he holding it by a wax handle ; so the sparks, if the rod is electrified, will strike from the rod to the wire, and not affect him.
Seite 377 - I say, if these things are so, may not the knowledge of this power of points be of use to mankind, in preserving houses, churches, ships, &V. from the stroke of lightning, by directing us to fix on the highest parts of those edifices, upright rods of iron made sharp as a needle, and gilt to prevent rusting, and from the foot of those rods a wire down the outside of the building into the ground, or down round one of the shrouds of a ship...
Seite 73 - The mutual action between the elements of the food and the oxygen conveyed by the circulation of the blood to every part of the body is the source of animal heat. " All living creatures whose existence depends on the absorption of oxygen possess within themselves a source of heat independent of surrounding objects.