By Mark Anders
Posted 04.18.2011 at 10:05 am 22 Comments
Surfers want to ride waves, not tire out while paddling to them. That’s where the WaveJet comes in. Two battery-powered jets tucked into the shortboard’s three-inch shell provide 20 pounds of thrust to propel riders at 12 mph—three times the average paddling speed.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.