Nature, Količina 104Sir Norman Lockyer Macmillan Journals Limited, 1919 |
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Zadetki 1–3 od 81
Stran 227
... electric fields opened up a new field of investigation and gave us for the first time a clear idea of the processes leading up to an electric spark . The ionisation theory was found to explain the conductivity produced by radium rays ...
... electric fields opened up a new field of investigation and gave us for the first time a clear idea of the processes leading up to an electric spark . The ionisation theory was found to explain the conductivity produced by radium rays ...
Stran 239
Sir Norman Lockyer. PROGRESS OF ELECTRICAL INVENTION . BY PROF . J. A. FLEMING , F.R.S. THE progress of electrical discovery and in- vention , and especially of electric lighting , telegraphy , and telephony , in the last fifty years ...
Sir Norman Lockyer. PROGRESS OF ELECTRICAL INVENTION . BY PROF . J. A. FLEMING , F.R.S. THE progress of electrical discovery and in- vention , and especially of electric lighting , telegraphy , and telephony , in the last fifty years ...
Stran 240
... electric currents by mechanical power on a large scale and for the solution of the problem of public electric lighting . Paul Jablochkov invented in 1876 his " electric candle " and initiated public street electric light- ing in Paris ...
... electric currents by mechanical power on a large scale and for the solution of the problem of public electric lighting . Paul Jablochkov invented in 1876 his " electric candle " and initiated public street electric light- ing in Paris ...
Vsebina
Crabtree J H British Ferns and how to Identify | xvi |
Crawford H S The Mural Paintings and Inscriptions | xxxiii |
The Direct Determination Kew Observatory 120 The Magnetic Storm of August | xxxv |
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æther appears application appointed atomic weights birds body botany Bournemouth British Association Cambridge catalysis cent chemical chemistry chemists College colour comet Committee Council Department direction discovery economic edition Editor effect electric electrons elements energy engineering existence experiments fact fifty geological give given guanidin helium illustrated important increased industry Institute interest investigation J. J. Thomson James Watt journal jubilee knowledge laboratory large number lectures London Lord Rayleigh mathematical matter means meeting ment method mineral Museum National Physical Laboratory NATURE observations obtained October organisation paper period physical plants position possible practical present President problems production Prof progress published radiation radium recent recognised record regard Robert Hadfield Royal Society scientific workers South species technical telegony telegraphy temperature theory tical tion University W. H. Bragg wireless X-rays