A History of Wireless Telegraphy, 1838-1899: Including Some Bare-wire Proposals for Subaqueous TelegraphsBlackwood, 1899 - 324 sider |
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Side 3
... circuit.1 1 For the use of the earth circuit before Steinheil's accidental dis- covery , see my ' History of Electric Telegraphy to 1837 , ' pp . 343-345 . Steinheil then goes on to say : " The inquiry PROFESSOR C. A. STEINHEIL . 3.
... circuit.1 1 For the use of the earth circuit before Steinheil's accidental dis- covery , see my ' History of Electric Telegraphy to 1837 , ' pp . 343-345 . Steinheil then goes on to say : " The inquiry PROFESSOR C. A. STEINHEIL . 3.
Side 7
... circuit containing an electro- magnet . Davy always spoke of the relay as the " renewer " or the " renewing wire " ; and by dip he meant to dip into mercury , or , as we say nowadays , to close the circuit . close a local circuit in ...
... circuit containing an electro- magnet . Davy always spoke of the relay as the " renewer " or the " renewing wire " ; and by dip he meant to dip into mercury , or , as we say nowadays , to close the circuit . close a local circuit in ...
Side 34
... 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 value , at a time ...
... 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 value , at a time ...
Side 37
... circuit , the result was the same , and the means I used to obtain it the same in principle as those which make the matter an accomplished fact to - day - viz . , elevated lengths of wire , and the discharge of electricity from the one ...
... circuit , the result was the same , and the means I used to obtain it the same in principle as those which make the matter an accomplished fact to - day - viz . , elevated lengths of wire , and the discharge of electricity from the one ...
Side 43
... circuit . Again , you notice the deadness of the movements and the total absence of swing , which , whenever a needle is used , always more or less tends to confuse the signals . The greatest advantage of all is that we can increase the ...
... circuit . Again , you notice the deadness of the movements and the total absence of swing , which , whenever a needle is used , always more or less tends to confuse the signals . The greatest advantage of all is that we can increase the ...
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A History of Wireless Telegraphy: Including Some Bare-wire Proposals for ... John Joseph Fahie Uten tilgangsbegrensning - 1901 |
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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