Gravity in a Sphere

--- In spacesettlers@yahoogroups.com, "Combs, Mike"
> From: Saatvik Agarwal [mailto:asaatvik@y...]
>
> > In one of his mails Mike Combs mentioned that a sphere would be
> > inhabitable upto 45 degrees.
> > Somehow this seems a bit too much to me. At 45 degrees gravity would
> be
> > half of normal Earth gravity, how can people live there?
> > (Keeping in mind that according to NASA's 75 Study habitable areas
> have
> > been defined as having gravity between 0.9g and 1g.)
>
> The truth is that we can't really know at this point. After we get some
> experience, we might find that the assumption humans need at least .9G
> to remain healthy was way too conservative. Or we may find that .5G was
> way too optimistic.
>
> Personally, I prefer to be pretty conservative with my assumptions. But
> then I would go on to say that the assumption a person might spend most
> (but not all) of their time at .5G without serious medical problems is a
> more conservative assumption than the one being made by Mars
> colonization enthusiasts, namely that spending all of our time at .38G
> won't be any kind of problem.
>
> Regards,
>
> Mike Combs

Best to be conservative at first.

But there is the possibilty that people could not only live under low
gravity, but live longer. The heart is a hard-working bunch of
muscle. With less gravity to work against, the heart could well last
longer.

Rick Brooks