Nature, Količina 104Sir Norman Lockyer Macmillan Journals Limited, 1919 |
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Zadetki 1–3 od 75
Stran 173
... wireless stimulation was to be tested , not merely by the responsive movement of sensitive plants , but also by diverse modes of response given by all kinds of plants . The Wireless System . For sending wireless signals I had to ...
... wireless stimulation was to be tested , not merely by the responsive movement of sensitive plants , but also by diverse modes of response given by all kinds of plants . The Wireless System . For sending wireless signals I had to ...
Stran 179
... wireless telegraphy have velocity which is independent of the wave - length , ti a falling - off of intensity with distance which is the same for all frequencies , there is no distortion of sound in wireless telephony similar to that ...
... wireless telegraphy have velocity which is independent of the wave - length , ti a falling - off of intensity with distance which is the same for all frequencies , there is no distortion of sound in wireless telephony similar to that ...
Stran 241
... Wireless telegraphy has attracted the attention of electricians since 1842 , but no important inven- tion was made until Marconi in 1896 first showed how to employ electromagnetic waves for this purpose , generated by a special form of ...
... Wireless telegraphy has attracted the attention of electricians since 1842 , but no important inven- tion was made until Marconi in 1896 first showed how to employ electromagnetic waves for this purpose , generated by a special form of ...
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