The National Geographic Magazine, Volume 109National Geographic Society, 1956 - Geography Indexes kept up to date with supplements. |
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Page 491
Space Satellites , Tools of Earth Research speed of sound . Space , not the sky , has be- come the limit . Yet , despite these advances , the conquest of space remained , until recently , only a prom- ise . The last 10 years were a time ...
Space Satellites , Tools of Earth Research speed of sound . Space , not the sky , has be- come the limit . Yet , despite these advances , the conquest of space remained , until recently , only a prom- ise . The last 10 years were a time ...
Page 494
... Space Medicine made its first inquiries into this exciting new field of science , it became increasingly clear to us that space would soon become a serious busi- ness . But we realized , too , that we would have to be practical about ...
... Space Medicine made its first inquiries into this exciting new field of science , it became increasingly clear to us that space would soon become a serious busi- ness . But we realized , too , that we would have to be practical about ...
Page 509
... space ! Another tremendous problem will be that of bringing space trav- elers back to earth without burning them up by turning their vehicles into glowing meteors . And these are purely technical difficulties . There is man himself ...
... space ! Another tremendous problem will be that of bringing space trav- elers back to earth without burning them up by turning their vehicles into glowing meteors . And these are purely technical difficulties . There is man himself ...
Contents
Airplanes New Industry and Military Defense Speed Progress | v |
In These Telltale and Often Beautiful Relics of Vanished | xviii |
Athens to Istanbul A Journey Through the Heart of the | 37 |
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