The Encyclopedia Americana: A Library of Universal Knowledge, Količina 10Americana corporation, 1931 |
Iz vsebine knjige
Zadetki 1–3 od 87
Stran 124
... lead there exists a strong chemical affinity , which constitutes the basic operating force of the lead cell . So soon as the internal reactions are per- mitted to take place , by the closing of the external circuit , the sulphuric acid ...
... lead there exists a strong chemical affinity , which constitutes the basic operating force of the lead cell . So soon as the internal reactions are per- mitted to take place , by the closing of the external circuit , the sulphuric acid ...
Stran 125
... lead storage battery , at least theoretically , is quite a simple matter ; the sponge lead which constitutes the active ma- terial has considerable mechanical tenacity and is therefore relatively easy to hold in place upon the skeleton ...
... lead storage battery , at least theoretically , is quite a simple matter ; the sponge lead which constitutes the active ma- terial has considerable mechanical tenacity and is therefore relatively easy to hold in place upon the skeleton ...
Stran 187
... lead sulphide , zinc sulphide and gangue- at a low red heat , so as to convert the sulphides into oxides and sulphates . The roasted ore is then treated with dilute sulphuric acid , the zinc being dissolved as sulphate , leaving the lead ...
... lead sulphide , zinc sulphide and gangue- at a low red heat , so as to convert the sulphides into oxides and sulphates . The roasted ore is then treated with dilute sulphuric acid , the zinc being dissolved as sulphate , leaving the lead ...
Druge izdaje - Prikaži vse
Pogosti izrazi in povedi
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