Nature, Količina 104Sir Norman Lockyer Macmillan Journals Limited, 1919 |
Iz vsebine knjige
Zadetki 1–3 od 75
Stran 74
... light absorbed in the black pig- ment may stimulate certain atoms into radioactivity and so cause the sensation of light , I am reminded of a theory of colour vision which I endeavoured to in- vestigate some years ago . The theory is ...
... light absorbed in the black pig- ment may stimulate certain atoms into radioactivity and so cause the sensation of light , I am reminded of a theory of colour vision which I endeavoured to in- vestigate some years ago . The theory is ...
Stran 354
... light ; but it is not permissible to say that the solar gravitational field acts like a lens , for it has no focal length . If the sun were backed by a nebula or any luminous area , the light grazing the rim all round would be brought ...
... light ; but it is not permissible to say that the solar gravitational field acts like a lens , for it has no focal length . If the sun were backed by a nebula or any luminous area , the light grazing the rim all round would be brought ...
Stran 605
... light incident on the selenium executed fluctuations of the original frequency and ampli- tude , and the speech sounds were reproduced in the telephone receiver . Other forms of transmitter are also described by Graham Bell , but it is ...
... light incident on the selenium executed fluctuations of the original frequency and ampli- tude , and the speech sounds were reproduced in the telephone receiver . Other forms of transmitter are also described by Graham Bell , but it is ...
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