A site you might want to check out which offers a gravity fed engine;
Once I had established that it was possible to move the mass into the
positive gravitational pull ­ I then set about to design a machine
that would force mass to move in this way. The result of this design
effort is what I call the Gravity Engine. The Gravity Engine is only an
idea ­ it has not been built and a prototype doesn't exist
anywhere. I have done some initial tests using a fixture of my own
design ­ and based on my tests, believe that the concept is worth
further testing. My mathematical models are relatively crude and they
don't absolutely prove the design, however, they do demonstrate
potential.
I am making this design available on the web because I think there is
potential, but I know that I don't have the resources to bring it beyond
the current design phase. There is additional analysis, prototypes, and
further research on the feasibility of this machine. My decision to
release these plans are also rooted in the fundamental hope that someday
we can find reliable alternatives to our energy needs.
-- Jerry Wayne Decker / jdecker@keelynet.com http://keelynet.com / "From an Art to a Science" Voice : (214) 324-8741 / FAX : (214) 324-3501 KeelyNet - PO BOX 870716 - Mesquite - Republic of Texas - 75187