Vince Leon (vleon@u.arizona.edu)
Thu, 25 May 2000 11:37:27 -0700

Hey -Z-
Maybe you should add some info about a colony drop to your High Frontier web page?

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Vince Leon
vleon@u.arizona.edu

-----Original Message-----
From: D Fink [SMTP:lioconvoy@home.com]
Sent: Thursday, May 25, 2000 11:30 AM
To: gundam@aeug.org
Subject: Re: [gundam] Colony Drop was Re: New Gundam timeline

I know this all just anime physics, but would a colony even survive
re-entry? Colonies strike me as being rather fragile. Over half of their
surface area is windows, which I cant image were ever designed to stand much
heat. Just my 200 yen.

Dave
----- Original Message -----
From: "Lim Jyue" <lim_jyue@pacific.net.sg>
To: <gundam@aeug.org>; <gundam@aeug.org>
Sent: Wednesday, May 24, 2000 12:49 PM
Subject: Re: [gundam] Colony Drop was Re: New Gundam timeline

> At 20:21 05/23/2000 -0400, core@gundam.com wrote:
> >Can't comment on the 500km crater size, but the problem of crater size as
> >a function of the dropped body has been solved. For example, you can
look
> >at a crater on the Moon or Mars or Earth and give a very good estimate of
> >the meteorite. So given the approximate mass of a colony, the crater
size
> >should be known. Is there a planetary astronomer in the house?
>
> Rule of thumb from my astronomy course -- the size of the crater
is
> 10x that of the object's diameter, and the depth 1.5-2x. That means the
> impacting object of a 500km object is about 50km in diameter, and will
cause
> a 75km deep crater -- won't that let the magma out?
>
> Can't tell how the shape of a colony will affect this though..

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