[net.space] Metal foam

MINSKY@MIT-OZ@sri-unix (12/10/82)

To complain that metal doesn't foam in space uniformly is
like complaining that dishes don't break into perfect
little squares when you drop them.  Of course the first
foaming experiment isn't perfect.  But what if you
extrude the stuff through orifices that inject bubbles
powered by suitable vibrators, to make perfect lattices,
etc.  Along with REM, I've long felt that foam steel
would be a great building material.  I wonder how hard
people have really tried to make it here, in fact, by
using more cleverness?
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