Does the "N" in NASCAR stand for nepotism? Research published earlier this year in the Journal of Sports Economics investigates the last 30 years of racing to determine whether a family name has provided a free ride. The data shows that sons of NASCAR drivers do not have significantly longer careers than competitors without a family link, given the same level of performance (so Dale Jr. haters, pipe down).
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.