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 11
... the water to plate i , and thence around the coil of the galvanometer to plate ƒ , across the river again to plate 9 , and thence to the other pole of the battery , N. " The distance across the canal is 80 feet ; PROFESSOR MORSE . 11.
... the water to plate i , and thence around the coil of the galvanometer to plate ƒ , across the river again to plate 9 , and thence to the other pole of the battery , N. " The distance across the canal is 80 feet ; PROFESSOR MORSE . 11.
Página 18
... coils of wire than the possibility of power appeared certain , and I commenced a series of experiments in 1832 . The power on a small scale was easily obtained , and during these experiments I had a clear view of the application of ...
... coils of wire than the possibility of power appeared certain , and I commenced a series of experiments in 1832 . The power on a small scale was easily obtained , and during these experiments I had a clear view of the application of ...
Página 26
... coil of wire which actuates A > Water Z B Fig . 2 . the needle may be increased or diminished according to circumstances . " Suppose it is required to transmit a message from A , the operator completes the circuit of the electric ...
... coil of wire which actuates A > Water Z B Fig . 2 . the needle may be increased or diminished according to circumstances . " Suppose it is required to transmit a message from A , the operator completes the circuit of the electric ...
Página 30
... coil to move a needle , and to have on the other side two sheets similarly connected , and nearly opposite the two former . Experiments had shown that only a fractional part of the electricity generated goes across , and that the ...
... coil to move a needle , and to have on the other side two sheets similarly connected , and nearly opposite the two former . Experiments had shown that only a fractional part of the electricity generated goes across , and that the ...
Página 31
... coil was about 6 lb. , and the lateral distance was , as just stated , less than the transverse ; but if it had been a mile , and the distance across also a mile , the signals would , no doubt , have been equally distinct . Should this ...
... coil was about 6 lb. , and the lateral distance was , as just stated , less than the transverse ; but if it had been a mile , and the distance across also a mile , the signals would , no doubt , have been equally distinct . Should this ...
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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