Sand casters

> Jerry Han wrote:

I posted the following numbers the last time this thread came up, a little
over a year ago.

At the most commonly used scale (1" = ~1000km), the density of a sand cloud is
not very cost effective compared to the amount of mass required; if you evenly
dispersed a quantity of sand equal to the mass of a destroyer into a 1" cubic
volume, the density would be so low that a capital ship might fly through the
resulting cloud without hitting a single grain.

Jeff

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At 05:00 PM 8/19/1998 -0500, Jeff Lyon posted this:
> I was afraid someone would ask that...okay, here are some rough
I
> like round numbers).