ScienceJohn Michels (Journalist) 1948 |
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Стр. 272
... present writing alarming in a high degree . Man- power in such organizations , even with urgent needs and extensive ... present Navy and will discourage enrollment and re- tirement of the present high grade of personnel . It is hoped ...
... present writing alarming in a high degree . Man- power in such organizations , even with urgent needs and extensive ... present Navy and will discourage enrollment and re- tirement of the present high grade of personnel . It is hoped ...
Стр. 402
... present in connection with vision a mechanism of some kind which can eliminate not only the colored fringes pro- duced by the chromatic aberration of the eye but the colors of yellow and blue test objects as well . Ex- periment shows ...
... present in connection with vision a mechanism of some kind which can eliminate not only the colored fringes pro- duced by the chromatic aberration of the eye but the colors of yellow and blue test objects as well . Ex- periment shows ...
Стр. 490
... present to produce the amount of lead present , and the age of the mineral could not be longer than the time so calculated . On the other hand , if we measure the amount of uranium and lead 206 in a uranium mineral , it is possible to ...
... present to produce the amount of lead present , and the age of the mineral could not be longer than the time so calculated . On the other hand , if we measure the amount of uranium and lead 206 in a uranium mineral , it is possible to ...
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