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czygvtwkr · 01-17-2008, 09:25 AM

You can have an airplane flying into a head wind of 500 mph and not move relative to the ground. Its the speed of air over the wings that create lift.

Ever see a seagull floating in air or even moving backwards against the wind?

01-17-2008, 09:25 AM	#43 (permalink)
czygvtwkr Boing Boing Boing Member Since: Dec 2003 Posts: 2,318	You can have an airplane flying into a head wind of 500 mph and not move relative to the ground. Its the speed of air over the wings that create lift. Ever see a seagull floating in air or even moving backwards against the wind?
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