A Century of ElectricityMacmillan, 1887 - 229 páginas |
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Página 26
Thomas Corwin Mendenhall. cake of wax , and putting him in connection with an iron rod which extended many feet into the air . If the experiment succeeded , sparks might be drawn from the man . He did not appear to think that the person ...
Thomas Corwin Mendenhall. cake of wax , and putting him in connection with an iron rod which extended many feet into the air . If the experiment succeeded , sparks might be drawn from the man . He did not appear to think that the person ...
Página 34
... the means of leading him to the discovery which has forever fixed his name in the nomenclature of the science . It seems that some of these animals were sus- pended on an iron railing by means of cop- per 34 A CENTURY OF ELECTRICITY .
... the means of leading him to the discovery which has forever fixed his name in the nomenclature of the science . It seems that some of these animals were sus- pended on an iron railing by means of cop- per 34 A CENTURY OF ELECTRICITY .
Página 35
Thomas Corwin Mendenhall. pended on an iron railing by means of cop- per hooks , and that their muscles occasionally twitched when there was no apparent electrical disturbance in their vicinity . This was the observation of prime ...
Thomas Corwin Mendenhall. pended on an iron railing by means of cop- per hooks , and that their muscles occasionally twitched when there was no apparent electrical disturbance in their vicinity . This was the observation of prime ...
Página 45
... iron , platinum , and other refractory substances , were fused . An experiment suggested by Dr. Wollaston gave a result which was at that time extremely curious , but which will receive its full explana- tion later on . It was that a ...
... iron , platinum , and other refractory substances , were fused . An experiment suggested by Dr. Wollaston gave a result which was at that time extremely curious , but which will receive its full explana- tion later on . It was that a ...
Página 65
... iron , and , indeed , of most metals , although in some instances serious diffi- culties had to be overcome before the operation was successful . It is applied to the production of copies of medals , engravings , etc .; and , in fact ...
... iron , and , indeed , of most metals , although in some instances serious diffi- culties had to be overcome before the operation was successful . It is applied to the production of copies of medals , engravings , etc .; and , in fact ...
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Términos y frases comunes
already Ampère appear armature arranged attracted battery beatification cable carbon cell century chemical circuit coil conductor connected consists construction copper core Crown 8vo current of electricity CYRUS W dash Davy deflect device devised direction discovery disk duced duplex dynamo dynamo-electric dynamo-electric machine effect elec electric current electric light electric telegraph electricians electrified electro-magnet electromotive force energy exhibited experiment experimental extremely fact Faraday Faraday's field flow Franklin Galvani galvanometer gutta-percha heat important increased induction insulated invention inventors known lamp latter Leyden jar lines of force machine magnetic needle means ment metals method Morse motion motor nearly number of lines Oersted's operation passed periment poles possible present principle produced rapid receiving instrument resistance rotation Royal Society science of electricity scientific signals siphon recorder stopcock successful sulphuric acid telegraph tion trans transmission transmitted tricity vibration wheel wire zinc
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Página 46 - ... of an inch), a bright spark was produced, and more than half the volume of the charcoal became ignited to whiteness, and by withdrawing the points from each other a constant discharge took place through the heated air, in a space equal at least to four inches, producing a most brilliant ascending arch of light, broad and conical in form in the middle.
Página 22 - I never was before engaged in any study that so totally engrossed my attention and my time, as this has lately done ; for what with making experiments when I can be alone, and repeating them to my friends and acquaintance, who, from the novelty of the thing, come continually in crowds to see them, I have, during some months past, had little leisure for any thing else.
Página 47 - ... producing a most beautiful coruscation of purple light, the charcoal became intensely ignited, and some platina wire attached to it, fused with brilliant scintillations, and fell in large globules upon the plate of the pump. All the phenomena of chemical decomposition were produced with intense rapidity by this combination.
Página 25 - The electric fluid is attracted by points. We do not know whether this property is in lightning, but since they agree in all the particulars in which we can already compare them, is it not probable they agree likewise in this? Let the experiment be made.