From: vince@offshore.ai (Vincent Cate) Newsgroups: sci.space.policy Subject: Re: Mars Colonization References: <4fd18840.0312290331.516646b9@posting.google.com> <3FF0EB05.80507@tabletoptelephone.com> <3ff19510$0$202$75868355@news.frii.net> <3FF33708.7040102@tabletoptelephone.com> <9186edb5.0401011733.1f56ef7d@posting.google.com> <3FF4DAAA.80103@tabletoptelephone.com> NNTP-Posting-Host: 207.42.133.230 Message-ID: <9186edb5.0401021607.55bb4c94@posting.google.com> Hop David: > I would say use minimum gee that can maintain health (so far this is > unknown) and water as shielding. Nature has evolved designs that are really impressive. The way the body adapts to lower Gs is remarkable. It seems like the big problem is just if you want to come back to Earth. I suspect the body is adapting to the peak daily load and not the average (a good engineer would design for peak load and not average load). So I suspect that if you spent some time in a centrifuge every day at 1 G or more that your bones, heart, etc. would be in good shape to handle Earth's one G when you came back. So I think a space hotel should have a centrifuge, at least for the staff that is staying awhile. Probably fun for the tourists to spend some time in it the day before they go home. -- Vince