A History of Wireless Telegraphy: Including Some Bare-wire Proposals for Subaqueous TelegraphsBlackwood, 1901 - 348 sider |
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Side 33
... ) Improve- ments in Electric Telegraphs , January 13 , 1853 ; and ( 2 ) Improve- ments in obtaining power by Electro - Magnetism , October 28 , 1853 . English and French coasts , with terminals dipping into the J. W. WILKINS . 33.
... ) Improve- ments in Electric Telegraphs , January 13 , 1853 ; and ( 2 ) Improve- ments in obtaining power by Electro - Magnetism , October 28 , 1853 . English and French coasts , with terminals dipping into the J. W. WILKINS . 33.
Side 34
... terminals of one circuit to the other pair of terminals on the opposite shore . " It may be interesting to relate how I came to think that telegraphy without wires was a possibility , and that it should have appeared to me to have some ...
... terminals of one circuit to the other pair of terminals on the opposite shore . " It may be interesting to relate how I came to think that telegraphy without wires was a possibility , and that it should have appeared to me to have some ...
Side 83
... terminal of the battery which is grounded at the observatory . In all the telephone circuits between . Boston and Cambridge , in the neighbourhood of the observ- atory line , the ticking of the clock could be heard . This ticking had ...
... terminal of the battery which is grounded at the observatory . In all the telephone circuits between . Boston and Cambridge , in the neighbourhood of the observ- atory line , the ticking of the clock could be heard . This ticking had ...
Side 84
... terminal wires of the telephone in the lake , and some distance apart , where they must have been far away ( ? four miles ) from the battery earth . Prof. Trowbridge performed a large number of similar experiments , varied in every way ...
... terminal wires of the telephone in the lake , and some distance apart , where they must have been far away ( ? four miles ) from the battery earth . Prof. Trowbridge performed a large number of similar experiments , varied in every way ...
Side 85
... condensers between the dynamo machines and the earth . They would prove of great service in exalting the earth potentials at the terminal stations . " Let , he says , a steamer be provided with PROFESSOR JOHN TROWBRIDGE . 85.
... condensers between the dynamo machines and the earth . They would prove of great service in exalting the earth potentials at the terminal stations . " Let , he says , a steamer be provided with PROFESSOR JOHN TROWBRIDGE . 85.
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A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire ... John Joseph Fahie Uten tilgangsbegrensning - 1899 |
A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire ... John Joseph Fahie Uten tilgangsbegrensning - 1900 |
A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire ... John Joseph Fahie Uten tilgangsbegrensning - 1900 |
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apparatus arrangement battery cable cells centimetres Cheap Edition circuit communication condenser conducting conductor connected copper wire Crown 8vo Daniell cell Demy 8vo detector diameter discharge distance disturbance Dundee earth effect Elec electric waves electrical oscillations Electrician electro-magnetic employed ether ethereal waves exciter experiments Fcap feet filings Flat Holm galvanometer gutta-percha Hertz Hertzian waves Illustrations inch increase induction coil iron Leclanché cells length Leyden jar light lighthouse Lindsay magnetic Marconi means ments messages metallic method metres microphone miles Morse Muckle Flugga needle obtained ohms ordinary paper parallel pass patent plates poles Portraits possible Post 8vo practical produced Prof Professor receiving instrument reflector relay resistance Scotland Second Edition secondary sending sensitive tube ship shore shown signals space spark-gap sparks station surface telegraph telephone terminals tion transmitting trembler tricity vertical wire vibrations Willoughby Smith wire wireless telegraphy yards
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