This squishy ball, inspired by an equally cute kid’s toy, is a breakthrough in a new class of three-dimensional structures that can buckle reversibly. It starts out as an inflated sphere, and if you suck the air out of it, it buckles down along its dimples into a smaller ball 46 percent its original size. It looks sort of like a buckyball, so its creators at MIT nicknamed it a “buckliball.”
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.