Fun Fact: Black bears are not all black! Cinnamon-colored bears, which may look like brown bears, are fairly common. Kermode bears, also known as "spirit bears," are native to the British Columbia coast, and sport white or cream-colored fur--they can be mistaken for polar bears, but are much smaller and friendlier.
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.