A Century of ElectricityMacmillan, 1887 - 229 páginas |
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Página 4
... author consents to add another to the already large number of so - called " popular " books on elec- tricity ; but he believes that the treatment of a subject like this will not necessarily be unscien- tific or 4 PREFACE .
... author consents to add another to the already large number of so - called " popular " books on elec- tricity ; but he believes that the treatment of a subject like this will not necessarily be unscien- tific or 4 PREFACE .
Página 5
... already inti- mated , is to present a sketch . Any reader who is so disposed will have no difficulty in finding material for filling in the details with any de- sired degree of elaboration . WASHINGTON , D. C. , May 16 , 1886 . T. C. M. ...
... already inti- mated , is to present a sketch . Any reader who is so disposed will have no difficulty in finding material for filling in the details with any de- sired degree of elaboration . WASHINGTON , D. C. , May 16 , 1886 . T. C. M. ...
Página 25
... already compare them , is it not probable they agree likewise in this ? Let the experiment be made . - Shortly after this , the hypothesis was elab- orated and communicated to his friend Mr. Collinson . This account of it reached France ...
... already compare them , is it not probable they agree likewise in this ? Let the experiment be made . - Shortly after this , the hypothesis was elab- orated and communicated to his friend Mr. Collinson . This account of it reached France ...
Página 36
... already made some notable contributions to the knowledge of electricity then existing . In 1793 he communicated to the Royal Society of London an account of some discoveries made by M. Galvani , to which he added many curious and ...
... already made some notable contributions to the knowledge of electricity then existing . In 1793 he communicated to the Royal Society of London an account of some discoveries made by M. Galvani , to which he added many curious and ...
Página 43
... already quoted . Davy saw in the voltaic battery a new and powerful means of producing decomposition . After experimenting extensively on already rec- ognized compounds , he ventured to attack the so - called " fixed alkalies , " whose ...
... already quoted . Davy saw in the voltaic battery a new and powerful means of producing decomposition . After experimenting extensively on already rec- ognized compounds , he ventured to attack the so - called " fixed alkalies , " whose ...
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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.