The National Geographic Magazine, Volume 92National Geographic Society, 1947 - Geography Indexes kept up to date with supplements. |
From inside the book
Results 1-3 of 35
Page 401
... Clocks run by the vibrating crystals are more out the radio time signals is corrected to coin- nearly accurate than the pendulum clocks , becide with the earth's turning . For instance , cause the crystals are not affected by variation ...
... Clocks run by the vibrating crystals are more out the radio time signals is corrected to coin- nearly accurate than the pendulum clocks , becide with the earth's turning . For instance , cause the crystals are not affected by variation ...
Page 423
... clocks to open the massive steel doors in 18 hours , at 8:30 the next morning . These four clocks , at Riggs pocket for more than a National Bank , Washington , D. C. , can be set as far ahead as 72 hours . At century after the main ...
... clocks to open the massive steel doors in 18 hours , at 8:30 the next morning . These four clocks , at Riggs pocket for more than a National Bank , Washington , D. C. , can be set as far ahead as 72 hours . At century after the main ...
Page 425
... clock , a radical departure from the longcase clock . Often Terry traveled on horseback , carrying as many clocks as he could . When the weather looked threatening , the story goes , he would leave a clock at a farmer's house with the ...
... clock , a radical departure from the longcase clock . Often Terry traveled on horseback , carrying as many clocks as he could . When the weather looked threatening , the story goes , he would leave a clock at a farmer's house with the ...
Other editions - View all
Common terms and phrases
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