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Re: Sand

From: "Phillip E. Pournelle" <pepourne@n...>
Date: Mon, 12 May 1997 17:04:33 -0400
Subject: Re: Sand

At 02:42 PM 5/12/97 -0400, Mike Miserendino wrote:
>Nope.	The magnetic field would keep the screen where it was needed.
>Remember as well, the particles have little to no mass.  It would take
very
>little energy to keep them in place.

	The Assumption regarding the mass is incorrect in this case.  In
order to have any significant effect in intercepting photons in a
coherent
laser and still have enough mass left over to continue an effective
screen
over the large volume of space that we are talking about, would require
a
reasonably significant mass.  Therefore, it would take quite a bit of
energy
to keep this mass of swirling crystals to stay with the orginating
craft.
	Phil P.

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