A History of Wireless Telegraphy: Including Some Bare-wire Proposals for Subaqueous TelegraphsBlackwood, 1901 - 348 sider |
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Side 1
... needle and sympathetic flesh telegraphs of the sixteenth and seven- teenth centuries , a full account of which will be found in my ' History of Electric Telegraphy to 1837 ' ( chap . i . ) , 1 we come to the year 1795 for the first ...
... needle and sympathetic flesh telegraphs of the sixteenth and seven- teenth centuries , a full account of which will be found in my ' History of Electric Telegraphy to 1837 ' ( chap . i . ) , 1 we come to the year 1795 for the first ...
Side 5
... needle . The difficulties attending the construc- tion of such an instrument , though certainly considerable , are not in themselves insuperable . Such a telegraph , however , would only have this advantage over those [ semaphores ] ...
... needle . The difficulties attending the construc- tion of such an instrument , though certainly considerable , are not in themselves insuperable . Such a telegraph , however , would only have this advantage over those [ semaphores ] ...
Side 18
... needle and the multiplication of the power by 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 ...
... needle and the multiplication of the power by 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 ...
Side 20
... needle instru- ment in Germany in 1835-36 dates the first real start of electric telegraphy . See my ' History of Electric Telegraphy , ' chap . ix . Railway , twenty - two miles long ; and Bain 20 FIRST PERIOD - THE POSSIBLE .
... needle instru- ment in Germany in 1835-36 dates the first real start of electric telegraphy . See my ' History of Electric Telegraphy , ' chap . ix . Railway , twenty - two miles long ; and Bain 20 FIRST PERIOD - THE POSSIBLE .
Side 25
... needle indicator , or other suitable telegraphic instrument . A , A in the diagram ( fig . 2 ) show the position of the battery and instru- ment on one side of the water , z ; B , B , the battery and instrument on the opposite side ; C ...
... needle indicator , or other suitable telegraphic instrument . A , A in the diagram ( fig . 2 ) show the position of the battery and instru- ment on one side of the water , z ; B , B , the battery and instrument on the opposite side ; C ...
Andre utgaver - Vis alle
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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