ISS is designed for a centrifuge. Indeed there is a centrifuge module
planned to be set on top of NODE2, (NODE2 connects the Japanese module,
Columbus facility (Europe) and Destiny and the "centrifuge"). Now that we
have cuts on ISS, this module's fate seems very uncertain. Indeed everything
seems uncertain because a 3 person crew does not make sense for such a big
outpost. More people would be needed, indeed the original 7 astronaut crew.
But, I think its time (like Jeff is probably going to remind us sometime
soon) to get back to europa, its a while since we don't center the
discussions on that special moon.
-- Hibai Unzueta
[EMAIL PROTECTED]
----- Mensaje original -----
De: Schmidt Mickey Civ 50 TS/CC <[EMAIL PROTECTED]>
Para: <[EMAIL PROTECTED]>
Enviado: Asteartea, 2001.eko martxoak 20 23h57
Asunto: RE: Zero-G Health Impacts
>
> It will be expensive because of the "extras". For example the ISS is not
> designed to have a centrifuge so a new module would have to be designed.
The
> centrifuge itself would act as a reaction wheel and cause the ISS to
precess
> in the opposite direction so reaction engines or devices would have to be
> added to the ISS to prevent that from happening. or the whole unit housing
> the centrifuge would hve to has an axel to spin around making it all the
> more complicated. Also one would want the Centrifuge to be a shirtsleve
> environment with lighting and electrical lines maybe even computer
> connections inside. That will require major work with slip rings etc.
> Building such a device would be much more expensive than say the most
recent
> US addition to ISS.
>
> Mickey
>
> -----Original Message-----
> From: Thomas Green [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, March 20, 2001 2:59 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Zero-G Health Impacts
>
>
>
> I'm not certain why it must be so much more expensive; the centrifuge
> doesn't
> require the hull to spin, just mount to an internal axel. As long as you
> have a
> way to spin it up and down that doesn't modify the internal stability of
the
> entire station, it shouldn't be that big a deal.
>
> To test the effects of artificial gravity on humans, simply build
> "merry-go-round" exercise equipment. You sit on your back with the head
> pointed
> towards the axel, while your feet pedal to start the rotation (after
setting
> the
> right counterweights on the other side). Anybody know what rpm a 3 meter
> diameter merry-go-round must spin to have enough angular momentum to
> simulate
> 9.8 m/s^2? Maybe this is the tragic flaw in my cheap design? :) Get
your
> barf
> bags ready!
>
> Schmidt Mickey Civ 50 TS/CC wrote:
>
> > A human sized centrifuge may be pretty expensive especially to place it
on
> a
> > space station or on a low gravity object
>
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