NPR’s Human-Powered Helicopters: Straight Up Difficult!

How difficult? The Sikorsky Prize from the American Helicopter Society has promised $250,000 to anyone that build’s a human-powered helicopter that can “hover for a minute, reach a height of 3 meters (about 10 feet), and stay in a 10-meter box.”

No one has claimed this prize in 30 years. And not for a lack of trying

But students at the University of Maryland, Team Gamera HPH, are now closer than most to reaching this goal. Watch the video above and read more about them on NPR.

via Kottke.