A Century of ElectricityMacmillan, 1887 - 229 páginas |
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Página 12
... inventions or memor- able discoveries with which science has enriched the world . All have built upon the labors of their predecessors , and to understand the com- pleted work it is necessary to know something of the history of its ...
... inventions or memor- able discoveries with which science has enriched the world . All have built upon the labors of their predecessors , and to understand the com- pleted work it is necessary to know something of the history of its ...
Página 20
Thomas Corwin Mendenhall. A very important advance was made in 1745 in the invention of the Leyden jar or phial.1 Leyden Jar . 1 A Leyden jar , as usually made , consists of a glass jar ( one having a wide mouth is most conveniently ...
Thomas Corwin Mendenhall. A very important advance was made in 1745 in the invention of the Leyden jar or phial.1 Leyden Jar . 1 A Leyden jar , as usually made , consists of a glass jar ( one having a wide mouth is most conveniently ...
Página 24
... invention of means for protecting build- ings from damage by lightning , stands singular and alone as the only really useful application to the affairs of every - day life of centuries of study and experiment . The germ of this dis ...
... invention of means for protecting build- ings from damage by lightning , stands singular and alone as the only really useful application to the affairs of every - day life of centuries of study and experiment . The germ of this dis ...
Página 37
... become so extensive and so common , that it is probably the best known of all electrical instruments . Its invention evi- dently came to Volta through his reflections upon the contact THE BATTERY AND THE CURRENT . 37.
... become so extensive and so common , that it is probably the best known of all electrical instruments . Its invention evi- dently came to Volta through his reflections upon the contact THE BATTERY AND THE CURRENT . 37.
Página 39
... invention , in noticing a peculiar sensation of taste which is excited by touching the tongue upon the edges of a number of plates of silver and zinc when placed alternately upon each other , an observation which he made and published ...
... invention , in noticing a peculiar sensation of taste which is excited by touching the tongue upon the edges of a number of plates of silver and zinc when placed alternately upon each other , an observation which he made and published ...
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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.