At this afternoon’s Phillies-Brewers game at Citizens Bank Park in Philadelphia, 2008 Cy Young award winner Cliff Lee will take the mound for the home team. One would think Lee’s job is secure, but even a renowned fastballer may have reason to sweat his position in the rotation after today’s game-opening festivities, when a robot fashioned by the University of Pennsylvania will toss the game's opening pitch. Insert your own “pitching mechanics” joke here.
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.