The National Geographic Magazine, Volume 92National Geographic Society, 1947 - Geography Indexes kept up to date with supplements. |
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Page 224
... pictures were also taken Evening Is Playtime of the birds with a stroboscopic lamp synchronized to the motion of a ... picture . ness . Camera Whir Disturbed Birds Experiments tried at this time seem almost like games , which the birds ...
... pictures were also taken Evening Is Playtime of the birds with a stroboscopic lamp synchronized to the motion of a ... picture . ness . Camera Whir Disturbed Birds Experiments tried at this time seem almost like games , which the birds ...
Page 402
... Pictures and Power A picture to be " telegraphed " is placed on a revolving roller . Highlights and shadows in it are transformed into varying electric impulses that flash to the receiving end . There the impulses are translated into ...
... Pictures and Power A picture to be " telegraphed " is placed on a revolving roller . Highlights and shadows in it are transformed into varying electric impulses that flash to the receiving end . There the impulses are translated into ...
Page 698
... picture every end replies , " Ready . " 30 seconds . It has made more than 10,000 I say , “ Open her up . ” He says " Open . ” pictures of auroras thus far . I say " Close , " and he responds " Closed . " We My wife and I both lost many ...
... picture every end replies , " Ready . " 30 seconds . It has made more than 10,000 I say , “ Open her up . ” He says " Open . ” pictures of auroras thus far . I say " Close , " and he responds " Closed . " We My wife and I both lost many ...
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Admiral Admiral Byrd Admiral Cruzen American Antarctic Antarctica Anthony Stewart arch Army aurora Bay of Whales Baylor Roberts birds boats building built camp Canyon Cape Capt century Chief clocks Coast color Delhi early earth east eclipse expedition explorers feet field flowers flying forms Frank Hurley garden Geographic Society Kodachrome glacier Hill Indian Island Kertezi Lake land light Little America live look Luis Marden miles Mohawk mountains NATIONAL GEOGRAPHIC MAGAZINE National Geographic Society native névé officer Ottawa Pilgrim plane plants Plate plateau Plymouth polar Pole radio region River rock Ross Sea San Antonio San'a sand ships snow South species Staff Photographer stone summer Texas tion tower town trail trees U. S. Navy United Valley village Volkmar Wentzel walls watch weather wild winter Yemen