European researchers working at the Institut Laue-Langevin (ILL) in Grenoble, France, have trapped the largest number of neutrons ever held in place at one time. But while they’ve smashed the previous record (also held by the ILL), it’s still not quite enough, the lead researcher tells BBC. Still, the new approach that got researchers this far may be able to trap far greater numbers of neutrons with a little finessing.
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.