mountain launch

then im sure its done with pumps and the water is fired at a piece of
metal very near the jet, otherwise friction would kill its speed. it
could not be created by pressure from a lake or dam.

--- In spacesettlers@yahoogroups.com, "Lucio de Souza Coelho"
wrote:
>
> On 5/23/06, Robert wrote:
> (...)
> > ive never heard of them using water to cut metal. if they do, its
has
> > to be done with pumps. why would they do so since blades are
better.