Originally Posted by Zeeman
whenever I hear about hydrogen powered 7's, I end up thinking about the hindenberg.
i sure a lot of people thought it was pretty cool in it's day....till it crashed and blew up.
Hydrogen is a hell of a lot safer than gas as said above. The hydrogen would dissipate pretty quickly if something managed to puncture the tank, which is built like a tank if you'll excuse the pun. Also, as long as we're on the topic of good ideas until they blow up, you don't fertilize vegetation, do you?