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From: nessus@nsc.UUCP (Kchula-Rrit)
Newsgroups: net.space
Subject: Re: swimming in space
Message-ID: <2736@nsc.UUCP>
Date: Tue, 21-May-85 15:58:42 EDT
Article-I.D.: nsc.2736
Posted: Tue May 21 15:58:42 1985
Date-Received: Thu, 23-May-85 03:09:14 EDT
References: <1709@mordor.UUCP> <1539@reed.UUCP>
Organization: The Patriarchy of Kzin, Kzin
Lines: 18

> In considering "efficiency" you might consider that swim fins push
> against water, and your proposed "air fins" work against air (at a 
> reduced pressure of something like 10 psi to boot, if what I've heard
> is correct).  I believe air is something like 1/20 as dense as air (at
> 14.7psi), so to get the "same effect" you'd need fins 20 times bigger,
> i.e., big mongo butterfly wings!  This might be OK in Heinlein's big
> flying chamber on the moon (see, I believe, _The Moon is a Harsh Mistress_)
> but it's downright lethal in a space station. ...

*** REPLACE THIS LINE WITH YOUR MESSAGE ***

     Wasn't the story by Heinlein called "The Menace From Earth"?  Then again,
maybe my memory is saturated from read science-fiction since age 12.  I agree
with the rest of the article.

		    From the alter ego of--

		    Kchula-Rrit