http://en.wikipedia.org/wiki/Launch_loop
http://en.wikipedia.org/wiki/Space_fountain

> What about these guys?  I know you've mentioned them
> before.

Take the fountain to its logical extreme and you have a
LASER launcher :-)
The pellets become photons and the tower structure is no
longer needed.

The loop sounds good but it tends to rely on extremely high 
tech and uncertainty.

Of the 3 I'd feel happiest about investing in a launch LASER 
system once they had the "engineering problems" [tm] sorted 
out.


            Russell


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