Subject:
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Re: Question about 7101
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Newsgroups:
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lugnet.starwars
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Date:
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Sun, 20 Jun 1999 22:18:50 GMT
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Viewed:
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904 times
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Christopher Masi wrote:
> Mr L F Braun wrote:
>
> > I think a Pod Race on the moon would be really boring, since turbojets don't
> > work really well without an atmosphere. Well, OK, the moon does
> > have an atmosphere, but it's got a pressure of about 0.2mm Hg (Sea level
> > Terran average is 1013mm Hg) and it's sodium, not exactly good for it.
>
> snip
>
> Terran = Earth , The number is right, but the unit is wrong. On average pressure is
> closer 1 atm (atmosphere), 760 mmHg, 760 Torr, 101.3 kPa (kilopascal), 1.013 Bar, or
> 1013 mBar (milibar).
OK. For some reason, I grafted mmHg onto the milibar rating. That's what I get for
forsaking chemistry and going to grad school for something else...;) Now I'm not sure
if the lunar "pressure" (if it can be called that) is in mBar or mmHg.
> PS Sodium atmosphere on the moon; I didn't know that.
I thought it was pretty funky myself. Apparently it's so tenuous that it took limb
spectroscopy to detect it--the instruments sent to the surface weren't adequate. (It's
sort of like Mercury's atmosphere in that it's totally trivial and "gas" in name only.)
LFB.
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Message is in Reply To:
 | | Re: Question about 7101
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| Mr L F Braun wrote: snip (...) snip Terran = Earth , The number is right, but the unit is wrong. On average pressure is closer 1 atm (atmosphere), 760 mmHg, 760 Torr, 101.3 kPa (kilopascal), 1.013 Bar, or 1013 mBar (milibar). Chris PS Sodium (...) (25 years ago, 10-Jun-99, to lugnet.starwars)
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