For those of you who do not know what it is, it is the product of a genuine crackpot mad scientist type weirdo.
(he did all this stuff in his apartment till the neighbors complained too much!
) Apparently, weird gravity effects occur when you mix enough high voltage with enough low frequency radio waves.
If you haven't seen any of the videos, they're pretty interesting. If he hoaxed them, I can't quite say how he did it. Anyway, here's a few pictures and a link.
http://www.hutchisoneffect.ca/Videos.html
http://www.hutchisoneffect.ca/Videos/WDPropane2.swf