Watches are hopping on the tactile bandwagon. With six electrodes in its sapphire face, the Tissot T-Touch puts smart functions at your fingertips: thermometer, altimeter, chronograph, compass, alarm, and weather. We'd like to see a larger LCD, but smarts and good looks make this watch appropriate for the office or the Appalachian Trail.
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.