I was browsing fark.com when i found this: http://www.thedenverchannel.com/health/11144866/detail.html It's about a machine that supposedly burns off 300 kcals every 10 minutes. That's pretty darn good! I suppose it must use ultrasonic waves to do this... Oh yeah, the thing that burns off all the calories is a simple machine that you just stand on.
Yeah there are many machines like this. 300 calories is alot to loose in 10 min tho. The best exercise is to run 20 min a day and your good. - Prilep