A Century of ElectricityMacmillan, 1887 - 229 páginas |
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Página 4
... possible ; and the effort has been to enable the intelligent reader , unfa- miliar with the nomenclature of the science , to understand the more important phases of its development , and to give him such a knowledge of its fundamental ...
... possible ; and the effort has been to enable the intelligent reader , unfa- miliar with the nomenclature of the science , to understand the more important phases of its development , and to give him such a knowledge of its fundamental ...
Página 12
... possible the brilliant discov- eries through which the two nations were after- wards united , by a bond affording practically instantaneous interchange of thought . The history of the advancement of science shows that its progress has ...
... possible the brilliant discov- eries through which the two nations were after- wards united , by a bond affording practically instantaneous interchange of thought . The history of the advancement of science shows that its progress has ...
Página 14
... possible value of electricity as a reme- dial agent was recognized in these early days , and then , as now , most extraordinary accounts of cures effected by its application were cur- rent . But throughout all of these centuries , up to ...
... possible value of electricity as a reme- dial agent was recognized in these early days , and then , as now , most extraordinary accounts of cures effected by its application were cur- rent . But throughout all of these centuries , up to ...
Página 42
... possible by the use of the electric current . They were based upon a most valuable observa- tion by Hisinger and Berzelius , who noted , that , when the current decomposed a neutral salt or an oxide , the oxygen and acid were car- ried ...
... possible by the use of the electric current . They were based upon a most valuable observa- tion by Hisinger and Berzelius , who noted , that , when the current decomposed a neutral salt or an oxide , the oxygen and acid were car- ried ...
Página 48
... possible time of contact was sufficient to renew the charge to its full intensity . This celebrated experiment , made before members of the Royal Institution in 1810 , was the first production and exhibition of the elec- tric current ...
... possible time of contact was sufficient to renew the charge to its full intensity . This celebrated experiment , made before members of the Royal Institution in 1810 , was the first production and exhibition of the elec- tric current ...
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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.