A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire Proposals for Subaqueous TelegraphsDodd, Mead & Company, 1900 - 325 páginas |
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Página 2
... charged positively to another point charged negatively , as Bertolon has shown in his Élec- tricité des Météores ' ( vol . i . p . 273 ) , one does not even want a cable to send across the sea a signal arranged beforehand . One could ...
... charged positively to another point charged negatively , as Bertolon has shown in his Élec- tricité des Météores ' ( vol . i . p . 273 ) , one does not even want a cable to send across the sea a signal arranged beforehand . One could ...
Página 41
... charged with it retained the charge with the utmost obstinacy ; and , whether from the effect of polar- isation ( so - called ) , or , as I am inclined to suppose , from electrisation of the successive strata of water surrounding the ...
... charged with it retained the charge with the utmost obstinacy ; and , whether from the effect of polar- isation ( so - called ) , or , as I am inclined to suppose , from electrisation of the successive strata of water surrounding the ...
Página 42
... charge for five or six minutes.1 " Since that time I have constructed an artificial line , consisting of resistance coils , condensers , and plates of copper in liquids , acting at once as faults and as condensers , so that I might ...
... charge for five or six minutes.1 " Since that time I have constructed an artificial line , consisting of resistance coils , condensers , and plates of copper in liquids , acting at once as faults and as condensers , so that I might ...
Página 43
... charge these plates with a Daniell cell , and you see how they retain the charge ; in fact , they will go on gradually discharging for several minutes . through the small resistance of the gold - leaf instrument . now do the same with a ...
... charge these plates with a Daniell cell , and you see how they retain the charge ; in fact , they will go on gradually discharging for several minutes . through the small resistance of the gold - leaf instrument . now do the same with a ...
Página 73
... charged with electricity , and that this charge increases with the ascent : thus , if at the surface of the earth we represent the electrical state or charge as 1 , at an elevation of 100 feet it may be represented as 2 ; at 200 feet as ...
... charged with electricity , and that this charge increases with the ascent : thus , if at the surface of the earth we represent the electrical state or charge as 1 , at an elevation of 100 feet it may be represented as 2 ; at 200 feet as ...
Outras edições - Ver tudo
A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire ... John Joseph Fahie Visualização integral - 1899 |
A History of Wireless Telegraphy: Including Some Bare-wire Proposals for ... John Joseph Fahie Visualização integral - 1901 |
A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire ... John Joseph Fahie Visualização integral - 1900 |
Palavras e frases frequentes
apparatus arrangement battery cable cells centimetres charged Cheaper Edition circuit communication condensers conducting conductor connected copper wire Crown 8vo Daniell cell Demy 8vo detector diameter discharge distance disturbance Dundee earth effect Elec electric current electric waves electrical oscillations Electrician electro-magnetic employed ether ethereal waves exciter experiments Fcap feet filings Flat Holm galvanometer gutta-percha Hertz Illustrations inch increase induction coil Inst iron Leclanché cells length Leyden jar light lighthouse Lindsay magnetic Marconi means ments messages metallic method miles Morse Muckle Flugga needle obtained ohms ordinary paper parallel pass plates poles Portrait possible Post 8vo practical Preece produced Prof Professor receiving instrument reflector relay resistance river Scotland Second Edition secondary sensitive tube shore signals space sparks station surface tele telegraph telephone terminals tion transmitting trembler tricity University of Edinburgh vibrations vols Willoughby Smith wire wireless telegraphy yards
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