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Re: O/T Science question about airplanes
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Posted by RAB on March 24, 2007 at 04:08:56 from (195.93.21.42):
In Reply to: O/T Science question about airplanes posted by Fred Roberts on March 23, 2007 at 21:52:17:
OK a few thoughts. Airplane speed is usually measured in "ground speed"? At the equator, the earth is moving (rotating) at about a 1000mph. They don"t get 1000mph winds? Wouldn"t you be able to fly round the earth in a day, simply by hanging up there and waiting for the earth to move? That might mean that a hot air ballon is supersonic? Atmosperic changes do not occur cyclically at 24 intervals. Like the weather from the other side of the world (at your lattitude of course!). Doesn"t happen does it? These few simple observations (and a lot more possibilities) might help you to answer your own question.
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