When I first heard about this I was tempted to dismiss it, however, the video is from MIT, and they show everything about the construction.
http://video.google.com/videoplay?docid=6491441475172785592#
I'm still trying to figure out how it works. It is obviously static electricity, but how?
http://video.google.com/videoplay?docid=6491441475172785592#
I'm still trying to figure out how it works. It is obviously static electricity, but how?