Posted by Paul Malo on December 03, 2001 at 20:51:52:In Reply to: Re: The Struggling Dilemma in Designing posted by Hollie on December 03, 2001 at 17:45:44:
Weightlessness is beyond my gravitational field, but consider pneumatic tubes. If a capsule that filled the diameter of a veritcal tube were to fall within the sealed tube, wouldn't air below the capsule increasingly compress and by building resistance slow the usual acceleration? Couldn't the speed of the falling capsule be controlled by limited ejection of compressed air from the base of the tube? In a sense this would be the reverse of the old pneaumatic tubes (once manufactured here in Syracuse, NY) which sped messages in capsules around large buildings. In those applications air pressure was used to move objects. In the escape tube, air pressure would control the speed of falling objects.
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