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Re: OT: Dyson's Disaster

From:Andreas Johansson <and_yo@...>
Date:Friday, December 7, 2001, 21:48
Anton Sherwood wrote:
>Andreas Johansson wrote: > > Another problem: While the sphere won't be attracting anything inside >it, > > any bodies within it will attract eachother, wherefore air will be > > dropping into the sun. Spinning the sphere won't help, since the air at > > the poles would still fall into the sun, creating a low pressure that > > sucks in more air und so weiter. > >The poles would then be effectively at high altitude. >Does the low pressure on mountaintops suck in air from below?
Yes - that's why the atmosphere don't fall to the ground. Andreas PS You may notice that one a terrestrial mountaintop gravity pulls you downward, while at the sphere's poles it pulls you "up", that is, towards the sun. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp