A Century of ElectricityMacmillan, 1887 - 229 páginas |
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Thomas Corwin Mendenhall. RICHARD CLAY AND SONS , LONDON AND BUNGAY . TN .M52 25572 PREFACE . A519911 A HUNDRED years have.
Thomas Corwin Mendenhall. RICHARD CLAY AND SONS , LONDON AND BUNGAY . TN .M52 25572 PREFACE . A519911 A HUNDRED years have.
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Thomas Corwin Mendenhall. TN .M52 25572 PREFACE . A519911 A HUNDRED years have elapsed since the experiment of an ... hundreds of thousands of intelligent people have come to have some per- sonal familiarity with its use . It is believed ...
Thomas Corwin Mendenhall. TN .M52 25572 PREFACE . A519911 A HUNDRED years have elapsed since the experiment of an ... hundreds of thousands of intelligent people have come to have some per- sonal familiarity with its use . It is believed ...
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... hundred years ago Thales , one of the " seven sages of Greece , ” knew of it . Descended from the Phoenician kings , he spent much of his life among the priests of Memphis , from whom he is thought to have derived his knowledge of this ...
... hundred years ago Thales , one of the " seven sages of Greece , ” knew of it . Descended from the Phoenician kings , he spent much of his life among the priests of Memphis , from whom he is thought to have derived his knowledge of this ...
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... hundred years ago , was industriously pursued by those who came after him , and the next two centuries witnessed a rapid development of the science . Among the earlier students of this period were the English philosopher , Robert Boyle ...
... hundred years ago , was industriously pursued by those who came after him , and the next two centuries witnessed a rapid development of the science . Among the earlier students of this period were the English philosopher , Robert Boyle ...
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... hundred years ago , September 20 , 1786 , Galvani , an Italian physician , saw , in the twitching of the legs of a frog , the beginning of modern electricity . It is difficult to understand how the circumstances attending so important a ...
... hundred years ago , September 20 , 1786 , Galvani , an Italian physician , saw , in the twitching of the legs of a frog , the beginning of modern electricity . It is difficult to understand how the circumstances attending so important a ...
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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.