I am more impressed with what looks like a more advanced version of BEHLs tube unit, at MIT in this video, already operating at a power plant. <a href="http://www.youtube.com/watch?v=EnOSnJJSP5c&feature=related" rel="nofollow" target="_blank">http://www.youtube.com/watch?v=EnOSnJJSP5c&feature=related</a> Or this one: <a href="http://www.youtube.com/watch?v=n9_-ZguuhBw&feature=related" rel="nofollow" target="_blank">http://www.youtube.com/watch?v=n9_-ZguuhBw&feature=related</a> Or this one <a href="http://www.youtube.com/watch?v=vRYcEPVsKhg&NR=1" rel="nofollow" target="_blank">http://www.youtube.com/watch?v=vRYcEPVsKhg&NR=1</a> BEHL is not looking at all unique after watching these.