William's correct. This was discussed on Randi's board awhile back and some additional details provided. And as Randi said, if this is
antigravity, then I was doing science fair demos with it back in the late 1950's. (you could buy a kit for it from Heathkit. Make rings and other
things hop and "fly") over the electromagnet.
Here's the quote from Randi's site:
Go take a look at
www.americanantigravity.com... and see very interesting videos of what the supporters seem to believe is a
breakthrough in science. If this device is "antigravity," then a pogo stick and a crow are both antigravity items, as well.
I saw a similar demo at the University of Toronto back in 1946. That demo used a flat circular coil of wire; I believe this is the same thing, but a
triangular form leads one away from the "induction" conclusion. It's a matter of high-voltage electrical fields generated by something that you
don't see in the videos; there's always a source of high voltage present, a CRT (computer monitor or TV receiver) or a HV power supply, just out of
camera view. What's also not obvious here is that the triangular frame ó which weighs only a few grams ó is tethered down by very fine invisible
threads, a fact which when known, makes the apparent "maneuvering" appearance less mysterious by far.
Take a look...
--------------endquote-------------
Randi's full commentary for that issue can be found at:
www.randi.org...