http://ourworld.cs.com/clhoereth/hydr.html
Personally, I am intrigued less at the moment with whether you can run an engine
with it, than with whether it might be the secret to Trevor Constable's "Black
Widow" cloudbusters. If you've never seen a picture of them, they are very
thick on the bottom and narrower on the top. Everyone's first impression is
that they look like a reentry capsule from the U.S. lunar program. The design
on this web page looks like it could yield a similarly-shaped device!
--Williamsport Area Computer Club <http://www.sunlink.net/wacc>Susquehanna Valley Amateur Astronomers<http://www.geocities.com/CapeCanaveral/Hangar/2999/svaa.html>Personal Home Page <http://woodstock.csrlink.net/~jshaffer>