Tron toy http://www.wired.com/underwi...
Björn Brembs
liked this
"The gravity-defying racer uses suction technology developed by a company called Air Hogs. Although the toy light cycle is a tad noisy, it spins around on the wall as easily as it does on the ground. True to the movie, the vehicle projects a beam of light behind it, and if it’s crossed by another light cycle, it loses power and will fall off the wall."
- Jan Wessnitzer