The Encyclopedia Americana: A Library of Universal Knowledge, Količina 10Americana corporation, 1931 |
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Zadetki 1–3 od 56
Stran 168
... mechanical energy in the waterfalls and to a lesser extent the wind , and second , as chemical energy in coal , wood , oil , natural gas , etc. Generation . In the transformation of the mechanical energy of waterfalls into electric ...
... mechanical energy in the waterfalls and to a lesser extent the wind , and second , as chemical energy in coal , wood , oil , natural gas , etc. Generation . In the transformation of the mechanical energy of waterfalls into electric ...
Stran 169
... mechanical energy as the steam engine , but mechanical power has to be exerted somewhere to produce the electric power which is reconverted into mechanical power in the electric motor . The advantage of the electric motor is that the ...
... mechanical energy as the steam engine , but mechanical power has to be exerted somewhere to produce the electric power which is reconverted into mechanical power in the electric motor . The advantage of the electric motor is that the ...
Stran 331
... mechanical equivalent of heat . The idea that energy cannot be created ap- pears to have been familiar to Galileo , who inferred the fact from a careful study of the simple machines that were in use in his day . There appeared to be ...
... mechanical equivalent of heat . The idea that energy cannot be created ap- pears to have been familiar to Galileo , who inferred the fact from a careful study of the simple machines that were in use in his day . There appeared to be ...
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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