The Encyclopedia Americana: A Library of Universal Knowledge, Količina 10Americana corporation, 1931 |
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Zadetki 1–3 od 76
Stran 190
... produced by reducing iron ore with carbon in an electric furnace . For example , a mixture of magnetite and carbon can be heated by passing a current through it , as in the Cowles aluminum bronze process , by passing the current through ...
... produced by reducing iron ore with carbon in an electric furnace . For example , a mixture of magnetite and carbon can be heated by passing a current through it , as in the Cowles aluminum bronze process , by passing the current through ...
Stran 283
... produced . Thus there are three embryonic regions , one producing epidermis , another producing the vascular sys- tem and the third producing cortex . These three regions , established in the early develop- ment of the embryo , are also ...
... produced . Thus there are three embryonic regions , one producing epidermis , another producing the vascular sys- tem and the third producing cortex . These three regions , established in the early develop- ment of the embryo , are also ...
Stran 312
... produce a beautiful rose enamel as well as the loveliest pink . But a far less expensive pink is produced by chalk , quartz , stannic oxide , borax and bichromate of potash mixed and heated to a frit , the pigment being dissolved in ...
... produce a beautiful rose enamel as well as the loveliest pink . But a far less expensive pink is produced by chalk , quartz , stannic oxide , borax and bichromate of potash mixed and heated to a frit , the pigment being dissolved in ...
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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