A Century of ElectricityMacmillan, 1887 - 229 páginas |
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Página 9
... turn homeward with patriotic warmth while they celebrate the anni- versary of American independence , and that , as they return thanks for all that God has done for us , they are joined by kind friends , who , though illustrating the ...
... turn homeward with patriotic warmth while they celebrate the anni- versary of American independence , and that , as they return thanks for all that God has done for us , they are joined by kind friends , who , though illustrating the ...
Página 11
... turn homeward with patriotic warmth while they celebrate the anni- versary of American independence , and that , as they return thanks for all that God has done for us , they are joined by kind friends , who , though illustrating the ...
... turn homeward with patriotic warmth while they celebrate the anni- versary of American independence , and that , as they return thanks for all that God has done for us , they are joined by kind friends , who , though illustrating the ...
Página 41
... turn became tarnished and black . ... The products of gas during two hours and a half was two thirtieths of a cubic inch . It was then mixed with an equal quantity of common air , and exploded by the application of a lighted waxen ...
... turn became tarnished and black . ... The products of gas during two hours and a half was two thirtieths of a cubic inch . It was then mixed with an equal quantity of common air , and exploded by the application of a lighted waxen ...
Página 49
... turn aside to consider its practical applica- tions ; and , indeed , the materials for the com- plete solution of the problem of lighting by electricity were not yet at hand . In the mean time improvements in the form and construction ...
... turn aside to consider its practical applica- tions ; and , indeed , the materials for the com- plete solution of the problem of lighting by electricity were not yet at hand . In the mean time improvements in the form and construction ...
Página 54
... Turning now to the consideration of the ob- jections to the earlier forms of batteries , it will not be difficult to understand their origin , and how they have been overcome . An ideal bat- tery should maintain a constant electromotive ...
... Turning now to the consideration of the ob- jections to the earlier forms of batteries , it will not be difficult to understand their origin , and how they have been overcome . An ideal bat- tery should maintain a constant electromotive ...
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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
Pasajes populares
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.