A History of Wireless Telegraphy: Including Some Bare-wire Proposals for Subaqueous TelegraphsBlackwood, 1901 - 348 sider |
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Side 5
... effect is proportional , not to the distance of the point of excitation , but to the square of this distance ; so that , at the distance of 50 feet , only exceedingly small effects can be produced by the most powerful electrical effect ...
... effect is proportional , not to the distance of the point of excitation , but to the square of this distance ; so that , at the distance of 50 feet , only exceedingly small effects can be produced by the most powerful electrical effect ...
Side 21
... effect the following hints should be attended to : The wire should be of pure copper , as otherwise it would be injured by the electro - chemical action of the water . The wire must not be composed of parts joined by soldering , but ...
... effect the following hints should be attended to : The wire should be of pure copper , as otherwise it would be injured by the electro - chemical action of the water . The wire must not be composed of parts joined by soldering , but ...
Side 41
... 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 wire , a long wire , brought to a E. AND H. HIGHTON . 41.
... 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 wire , a long wire , brought to a E. AND H. HIGHTON . 41.
Side 42
... effects would militate against the practical application of his method . 2 A special arrangement of this instrument , adapting it for long and naked ( or badly insulated ) lines , was patented February 13 , 1873. For reports of its ...
... effects would militate against the practical application of his method . 2 A special arrangement of this instrument , adapting it for long and naked ( or badly insulated ) lines , was patented February 13 , 1873. For reports of its ...
Side 44
... effects on the galvanometer when using the current of high tension , whereas the current of low tension will still show as much as 20 ° . You see , then , the importance of using currents of low tension from a battery of large surface ...
... effects on the galvanometer when using the current of high tension , whereas the current of low tension will still show as much as 20 ° . You see , then , the importance of using currents of low tension from a battery of large surface ...
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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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