Nature, Volume 108Sir Norman Lockyer Macmillan Journals Limited, 1921 |
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Página 174
... Light . By Prof. E. N. Harvey . ( Monographs on Experimental Bio- logy . ) Pp . x + 182 . ( Philadelphia and Lon- don : J. B. Lippincott Co. , 1920. ) IOS . 6d . net . IOLUMINESCENCE - that is , the production of light by animals and ...
... Light . By Prof. E. N. Harvey . ( Monographs on Experimental Bio- logy . ) Pp . x + 182 . ( Philadelphia and Lon- don : J. B. Lippincott Co. , 1920. ) IOS . 6d . net . IOLUMINESCENCE - that is , the production of light by animals and ...
Página 276
... light fluctuations of intensity which correspond to the sound - vibra- tions associated with speech ; for purposes of re- production the light is allowed to fall upon a selenium 1 cell , which , by its well - known photo- electric ...
... light fluctuations of intensity which correspond to the sound - vibra- tions associated with speech ; for purposes of re- production the light is allowed to fall upon a selenium 1 cell , which , by its well - known photo- electric ...
Página 367
... light on a clear day in certain directions is itself strongly polarised , and an observer standing with his back to the sun when it is fairly high up and viewing the sea will find the light reflected at all incidences sufficiently well ...
... light on a clear day in certain directions is itself strongly polarised , and an observer standing with his back to the sun when it is fairly high up and viewing the sea will find the light reflected at all incidences sufficiently well ...
Índice
Cusack Dr J The Arithmetic of the Decimal System 174 Doyle K D Agriculture and Irrigation in Continental | 7 |
BarrettHamilton and M A C Hinton Part | 21 |
Grandidier A obituary 286 Hamilton G H Observations of Mars at Flagstaff 447 | 32 |
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