Did you know that many American cars already on the road can run on E85 (a mixture of 85 percent ethanol and 15 percent gasoline)? Fueling up with ethanol can help to reduce dependence on foreign oil. Click here to calculate your savings.
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.