Nature, Volume 99Sir Norman Lockyer Macmillan Journals Limited, 1917 |
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Sir Norman Lockyer. and for protecting electrical machines and cables against abnormal electrical conditions due to ... electric stress between the horns of a lightning arrester . It is , however , merely the formula for the maximum ...
Sir Norman Lockyer. and for protecting electrical machines and cables against abnormal electrical conditions due to ... electric stress between the horns of a lightning arrester . It is , however , merely the formula for the maximum ...
Página 106
... electric lamp having one or more plates or cylinders of metal sealed into the bulb as a means of detecting high - frequency electric τα 000 a + . 1. - Various forms of Fleming oscillation valve or thermionic detector used in wireless ...
... electric lamp having one or more plates or cylinders of metal sealed into the bulb as a means of detecting high - frequency electric τα 000 a + . 1. - Various forms of Fleming oscillation valve or thermionic detector used in wireless ...
Página 341
... Electric Traction : A Treatise on the Application of Electric Power to Tramways and Railways . By A. T. Dover . Pp . xix + 667 + 5 folding plates . ( London : Whittaker and Co. , 1917. ) Price 18s . net . IN N electric traction the ...
... Electric Traction : A Treatise on the Application of Electric Power to Tramways and Railways . By A. T. Dover . Pp . xix + 667 + 5 folding plates . ( London : Whittaker and Co. , 1917. ) Price 18s . net . IN N electric traction the ...
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