A Century of ElectricityMacmillan, 1887 - 229 páginas |
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Página 33
... Plate V. , and , putting it on the table on which was the electrical machine ( Fig . 1 ) I placed it wholly disconnected from its conductor , and separated from it by an interval not short . One of those who were assisting me in the ...
... Plate V. , and , putting it on the table on which was the electrical machine ( Fig . 1 ) I placed it wholly disconnected from its conductor , and separated from it by an interval not short . One of those who were assisting me in the ...
Página 34
... Plate V. , with autograph . of the joints was seen to be contracted , so that they seemed to have fallen into the most vehement and violent convulsious . It appears to be tolerably well established that Galvani was long engaged in the ...
... Plate V. , with autograph . of the joints was seen to be contracted , so that they seemed to have fallen into the most vehement and violent convulsious . It appears to be tolerably well established that Galvani was long engaged in the ...
Página 39
... plates of silver and zinc when placed alternately upon each other , an observation which he made and published before the date of Volta's dis- covery . Volta modified the form of his appa- ratus by placing the two dissimilar metals in ...
... plates of silver and zinc when placed alternately upon each other , an observation which he made and published before the date of Volta's dis- covery . Volta modified the form of his appa- ratus by placing the two dissimilar metals in ...
Página 40
... inch and three quarters . This compound discharger was applied so that the external ends of its wire were in contact with the two extreme plates of a pile of thirty - six half - crowns , with the 40 A CENTURY OF ELECTRICITY .
... inch and three quarters . This compound discharger was applied so that the external ends of its wire were in contact with the two extreme plates of a pile of thirty - six half - crowns , with the 40 A CENTURY OF ELECTRICITY .
Página 42
... plates together , the order copper , zinc , fluid ; copper , zinc , fluid ; and so on was adhered to , the series begin- ning with copper and zinc , and ending with the same . Erman of Berlin pointed out that the presence of the copper ...
... plates together , the order copper , zinc , fluid ; copper , zinc , fluid ; and so on was adhered to , the series begin- ning with copper and zinc , and ending with the same . Erman of Berlin pointed out that the presence of the copper ...
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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.