Big.History.S01E06-Defeating.Gravity

Name: Big.History.S01E06-Defeating.Gravity
Uploaded: 2014-09-17T20:18:42+00:00
Duration: 21 min 30 s
Channel: costello74
Description: Flight takes more than wings. We need the right kind of air, the perfect materials cooked up over billions of years, and cosmic forces that are just right for us to leave the ground without tumbling off into space.

costello74

Flight takes more than wings. We need the right kind of air, the perfect materials cooked up over billions of years, and cosmic forces that are just right for us to leave the ground without tumbling off into space.

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