On Sat, 10 Jun 2006 03:48:40 GMT, lid
(John Savard) wrote, in part:

We don't really need to "work" on 'artificial gravity' of the kind
required. The centrifuge has already been invented. Making spaceships
that can hold together under the load, without being too massive -
*that's* what needs to be worked on.

Upon reflection, the real problem - since tethers are well-known - is
resolving the conflict between a structure providing artificial gravity,
and a structure that can manoeuver in space. It seems that every time
one needs to apply a little thrust, one has to reel in those tethers
first.

Unless one happens to be so oriented that the thrust would be a gentle
pull on the tethers...

John Savard
http://www.quadibloc.com/index.html
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