FRIEND: Interesting links regarding the scooter thing: FRIENDtex: The ramifications of someone actually deciding to put together the stirling idea with the gyroscope are beautiful.
BARDSQUILL: Ginger we've seen so far does not seem to be a Stirling engine [I think]
FRIEND: One of the more reliable tech people that I've spoken to made mention of it running off of it.   
FRIEND: Hydrogen instead of steam or water.
FRIEND: One of the links I sent you is where you can purchase a stirling for home use.

FRIEND: I didn't really get interested in it until I saw the video on it and watched it run. I get the sense that there is more going on with it than just another electric scooter. I am suspecting a functioning stirling on it is a solid theory.

How Segways Work  How Stirling Engines Work