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echo: trek_creative
to: All
from: Steve Oostrom
date: 2003-02-26 00:04:00
subject: [trekcreative] Mining

To: 
From: "Steve Oostrom" 
Reply-To: trekcreative{at}yahoogroups.com

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>Does Antigravity cost energy?  I'd imagine that it does...

Of course it does, but less energy than the other methods.  Basically, with
antigravity, you're letting the planet do the work of pushing the material
away.

>Why would you have to expose it?  I am thinking of a sort of macro scale
endo-scopic mining.

That might work if the substance you're looking for is concentrated in one
location, but less effective if what you want is in the parts-per-billion
r= ange
throughout the mantle.

>But that doesn't mean that silicon/iron or carbonaceous chondrite aren't
plentiful in the Earth system.

They're plentiful here, but we can't speak for other star systems.

Steve
The Universe Unbounded.

Visit "Star Trek: Athena" at http://ussathena.iwarp.com






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>Does Antigravity cost energy?  I'd imagine that
it does...
 
Of course it does, but less energy
than the other
methods.  Basically,
with antigravity, you're letting
the planet do the
work of pushing the
material away.
 
>Why would you have to expose it?  I am thinking
of a sort of
macro
scaleendo-scopic mining.
 
That might work if the substance
you're looking
for
is concentrated in one
location, but less effective if
what you want is
in
the parts-per-billion range
throughout the
mantle.
 
>But that doesn't mean that silicon/iron or carbonaceous chondrite
aren'tplentiful in the Earth system.
 
They're plentiful here, but we
can't speak for
other star systems.
 
Steve
The Universe
Unbounded.
 
Visit "Star Trek: Athena" at http://ussathena.iwarp.com;">http://ussathena.iwarp.comhttp://ussathena.iwarp.com">http://ussathena.iwarp.com;
 








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