Human electricity: the means of its development, illustrated by experiments |
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Additional Note animal electricity animal magnetism apparatus arrange ARTHUR WALLIS atmosphere attention attracted believe Bois-Reymond brass called cause centre communicated conductor copper wire described dia-magnetic difficulty direction discovery dissimilar metals earth easily effects elec electrical current electrical excitability electrical phenomena electro-magnetism electro-physiology electroscope exist experiments feeble force friction frog galvanic electricity galvanometer galvanoscope glass helix human body human electricity inches influence instrument Iron Globe kind known left hand Leyden jar light Body magnetoscope manifestations manner means merism Mesmer motion move muscles muscular nerves netism never north end observed operator opposite ordinary oscillation pass pendulum persons piece of iron placed polarity poles possess present principle processes produced properties proved quantity rubbing sealing-wax sensitive silk Stephen Gray substances supposed terrestrial magnetism things tion touched tricity true north vitality voltaic battery whilst wonderful zinc
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Sivu 46 - There was a time when I thought I knew something about the matter; but the longer I live, and the more carefully I study the subject, the more convinced I am of my total ignorance of the nature of electricity.
Sivu 159 - Now it is wonderful to observe how small a quantity of a compound body is decomposed by a certain portion of electricity. Let us, for instance, consider this and a few other points in relation to water. One grain of water, acidulated to facilitate conduction, will require an electric current to be continued for three minutes and three quarters of time to effect its decomposition, which current must be powerful enough to retain a platina wire T£T of an inch in thickness*, red hot, in the air during...
Sivu xxv - Leyden, of much eminence, said that " he felt himself struck in his arms, shoulders, and breast, so that he lost his breath ; and it was two days before he recovered from the effects of the blow and the terror ; adding, that he would not take a second shock for the kingdom of France.
Sivu xi - ... without the firm basis to work upon. When Pooh-pooh first heard that some persons were so mad as to think of carriages being drawn by steam...
Sivu xxxiv - Heretofore we owed theories on this subject much more to the boldness of ignorance than to the just confidence of knowledge ; but from the commencement of the systematic observations which Col. Sabine has been so active in promoting, this vague and useless theorizing ceased, — to be succeeded ere long by the sound speculative researches of those who may be capable of grappling with the real difficulties of the subject, when the true laws of the phenomena shall have been determined. These laws are...
Sivu 105 - Galvani really discovered not only the fundamental physiological experiment of galvanism properly so called (the contraction of the frog when touched with dissimilar metals), but also that of the electricity inherent in the nerves and muscles. Both of these discoveries were, however, hidden in such a confusion of circumstances that the result in both cases appeared equally to depend on the limbs or tissues of the animals employed.
Sivu 159 - I have said elsewhere on the relation of common and voltaic electricity, it will not be too much to say that this necessary quantity of electricity is equal to a very powerful flash of lightning. Yet we have it under perfect command; can evolve, direct, and employ it at pleasure; and when it has performed its full work of electrolyzation, it has only separated the elements of a single grain of water.
Sivu xlii - In the Dynamics of Magnetism, Electricity, Heat, Light, Crystallization, and Chemism, in their relations to Vital Force, By Baron Charles Von Reichenbach.
Sivu xxvi - Poneson, etc., the said Susanna did send several of her wearing apparel, and when they were shaken it would fly out in sparks and make a noise much like unto bay leaves when flung into the fire; and one spark...
Sivu xxxv - ... these variations. During the past year the results of the reductions of the observations made at Toronto have brought out with equal perspicuity, a variation in the direction of the magnetic needle, going through all its changes exactly in each lunar day. These results with reference to the sun, prove the immediate and direct exercise of a magnetic influence emanating from that luminary ; and also the same conclusion with regard to the influence of the moon. It would seem, therefore, that some...