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Article #199Re: subterranean zero g
From: Tom Schneider
Date: Wed, 30 Dec 1992 23:39
Date: Wed, 30 Dec 1992 23:39
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In article <C03G65.L68@world.std.com> fhapgood@world.std.com (Fred Hapgood) writes: >Recently Scientific American ran a short article on 'evacuated >maglev', or 'e-mag', which means putting trains in a tube, >evacuating the tube, and then using magnetic levitation to propel >them. (followed by interesting posting) There was a movie made on this theme at least 10 years ago. The US transport system was by emag, and after a war (?) people were rediscovering the connections. Also perhaps a story by Clark? One idea is to have the tube drop, so that the train falls down deep into the earth and comes back up at the destination. Only a little extra shove would be needed to assure that it got to the same level, more if the destination is at higher potential. It would be pretty bad if something went wrong, and one fell back and kept swinging though... :-) The nice thing about your proposed weightless facility is that it would be more accessable than orbit. Also, you could have any mass (whole cities??) in the orbit. Tom Schneider National Cancer Institute Laboratory of Mathematical Biology Frederick, Maryland 21702-1201 toms@ncifcrf.gov
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Newsgroups: sci.misc Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!darwin.sura.net!fconvx.ncifcrf.gov!fcs260c2!toms From: toms@fcs260c2.ncifcrf.gov (Tom Schneider) Subject: Re: subterranean zero g Message-ID: <C03J1n.Ls@ncifcrf.gov> Sender: usenet@ncifcrf.gov (C News) Nntp-Posting-Host: fcs260c2.ncifcrf.gov Organization: Frederick Cancer Research and Development Center References: <C03G65.L68@world.std.com> Date: Wed, 30 Dec 1992 23:39:23 GMT Lines: 25