When full-size foosball is hard to find, players can snap an iPad into the Classic Match Foosball table and boot up a game. Each of the eight rods has an optical sensor that relays direction and spin info through the iPad’s connector. New Potato Technologies Classic Match Foosball $100
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.