Annals of Electricity, Magnetism, and Chemistry: And Guardian of Experimental Science, Volume 9Sherwood, Gilbert, and Piper., 1842 |
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apparatus appears atmosphere ball battery bodies brass carbonic acid cause charge chemical action circuit circumstances clouds coating colour column combustion communication conductor contained copper decomposition degree diameter direction discharge distance divergence effect elec electric cloud electric current electric fluid electric matter electrified electrometer electroscope employed equal experiments extremity fact fire former galvanic galvanometer glass gold gunpowder heat hydrogen hygrometer ignited immersed inches increase insulated intensity iron wire kite length Leyden jar light liquid machine magnetism manner means memoir 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 prime conductor produced Professor proportion side silver solution spark spirals stannic acid striking substances sulphuric acid surface temperature theory tion tube vapour voltaic whilst WILLIAM STURGEON zinc
Popular passages
Page 431 - ... 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?
Page 336 - ... or it may perhaps extend also to a new process, to be carried on by known implements or elements, acting upon known substances, and ultimately producing some other known substance ; but producing it in a cheaper or more expeditious manner, or of a better and more useful kind. But no merely philosophical, or abstract principle, can answer to the word
Page 488 - ... 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?
Page 418 - 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.
Page 155 - 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.
Page 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...
Page 418 - ... 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.
Page 418 - 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.
Page 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.
Page 72 - ... Physiology has sufficiently decisive grounds for the opinion, that every motion, every manifestation of force, is the result of a transformation of the structure or of its substance ; that every conception, every mental affection, is followed by changes in the chemical nature of the secreted fluids ; that every thought, every sensation, is accompanied by a change in the composition of the substance of the brain.