A Century of ElectricityMacmillan, 1887 - 229 páginas |
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Página 104
... the battery ; for which credit must be given primarily to Volta , and then to Daniell , who in 1836 devised a battery nearly constant in its strength ,. Morse's Patent Office model of magnet and armature . 104 A CENTURY OF ELECTRICITY .
... the battery ; for which credit must be given primarily to Volta , and then to Daniell , who in 1836 devised a battery nearly constant in its strength ,. Morse's Patent Office model of magnet and armature . 104 A CENTURY OF ELECTRICITY .
Página 105
... armature with to - and - fro motion , armed with a style , or pencil , which marked long or short lines upon a moving slip of paper , and his alphabet made up of these dots and dashes , show great ingenuity and THE ELECTRO - MAGNETIC ...
... armature with to - and - fro motion , armed with a style , or pencil , which marked long or short lines upon a moving slip of paper , and his alphabet made up of these dots and dashes , show great ingenuity and THE ELECTRO - MAGNETIC ...
Página 106
... armature as it played to and fro was not only possible , but more expeditious and vastly more convenient than from the printed slip . though the introduction of the Morse system in Europe , and especially in England , was largely due to ...
... armature as it played to and fro was not only possible , but more expeditious and vastly more convenient than from the printed slip . though the introduction of the Morse system in Europe , and especially in England , was largely due to ...
Página 116
... armature and thus register the signal . It is important to observe that this current does not here divide , and run in opposite за b A B Scheme for duplex telegraphy : a a , artificial line or balancing resistances ; bb , condensers ...
... armature and thus register the signal . It is important to observe that this current does not here divide , and run in opposite за b A B Scheme for duplex telegraphy : a a , artificial line or balancing resistances ; bb , condensers ...
Página 126
... armature in front of the electro - magnet . This armature is of soft iron , which does not become permanently magnetic , or only very slightly so , and which is attracted by the magnet without regard to the character of its poles ; that ...
... armature in front of the electro - magnet . This armature is of soft iron , which does not become permanently magnetic , or only very slightly so , and which is attracted by the magnet without regard to the character of its poles ; that ...
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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.