The Encyclopedia Americana: A Library of Universal Knowledge, Količina 10Americana corporation, 1931 |
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Zadetki 1–3 od 81
Stran 140
... wire in any part of Manhattan borough , such wires all being placed in cables in conduits under the surface of the streets . Electric Underground ... wire in reverse spirals . The wire thus taped 140 ELECTRIC UNDERGROUND CABLES AND CONDUITS.
... wire in any part of Manhattan borough , such wires all being placed in cables in conduits under the surface of the streets . Electric Underground ... wire in reverse spirals . The wire thus taped 140 ELECTRIC UNDERGROUND CABLES AND CONDUITS.
Stran 162
... wire " in- struments . If the heated wire is carefully en- closed so that its temperature is not affected by air currents , it will rise a definite number of degrees in temperature for each current that is passed through it and this ...
... wire " in- struments . If the heated wire is carefully en- closed so that its temperature is not affected by air currents , it will rise a definite number of degrees in temperature for each current that is passed through it and this ...
Stran 176
... wires he noticed a deflection of the galvanome- ter in the secondary wire when the circuit of the primary wire was made and broken . This was the first observed instance of the development of electromotive force by electromagnetic induc ...
... wires he noticed a deflection of the galvanome- ter in the secondary wire when the circuit of the primary wire was made and broken . This was the first observed instance of the development of electromotive force by electromagnetic induc ...
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18th century acid alternating current American ampere hours amperes ancient anode armature battery became body book of Enoch cable called carbon cathode cell cent century charge chemical Church circuit coil conductors connected consists constitution Consult copper corpuscle cylinder direct direct current discharge effect Egypt Egyptian elec electric current electric energy electrode electrolyte electromotive force employed engine England English faradic feet France French furnace German Greek heat horse power inches industry insulated iron king known lamp later Leyden jar light lines literature London machine magnetic manufacture mass material mechanical ment metal miles motor nature negative operation oxide Paris period persons plants plate pole positive pounds pressure produced Prussia resistance Saint speed steam temperature term theory tion tricity tube United usually voltage volts vote wattmeter welding wire writing York