Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 82American Philosophical Society, 1940 |
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Сторінка 260
... distance from mirror No. 1 ; the plane of mirror No. 2 during viewing should coincide with that of No. 1 during photography ; the distance from camera to screen should equal the distance from observer to screen ; each eye should be half ...
... distance from mirror No. 1 ; the plane of mirror No. 2 during viewing should coincide with that of No. 1 during photography ; the distance from camera to screen should equal the distance from observer to screen ; each eye should be half ...
Сторінка 284
... Distance at max . light ( km ) 84.9 137.5 97.0 86.2 log Pm -7.46 -6.37 -6.03 -7.23 Height at beginning ( km ) 96.5 86.5 71.9 98.4 Height at end ( km ) 75.8 42.5 41.6 74.0 Height at max . light ( km ) 83.3 61.2 54.5 86.2 Apparent radiant ...
... Distance at max . light ( km ) 84.9 137.5 97.0 86.2 log Pm -7.46 -6.37 -6.03 -7.23 Height at beginning ( km ) 96.5 86.5 71.9 98.4 Height at end ( km ) 75.8 42.5 41.6 74.0 Height at max . light ( km ) 83.3 61.2 54.5 86.2 Apparent radiant ...
Сторінка 924
... distance they were able to use snow shoes , for the surface , except within a compara- tively short distance of the land , was covered with dry snow . Thus Peary , on his first trip into the interior of Greenland , attained a greater ...
... distance they were able to use snow shoes , for the surface , except within a compara- tively short distance of the land , was covered with dry snow . Thus Peary , on his first trip into the interior of Greenland , attained a greater ...
Зміст
and Finance C R WHITTLESEY | 73 |
Discussion of Totalitarianism HERBERT HEATON | 89 |
Blaise de Vigenère and the Chiffre Carré CHARLES | 102 |
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