Ever since Schuyler Skaats Wheeler introduced the first axial-bladed electric desk fan in 1882, fan technology has remained remarkably conservative. But that classic bladed design wasn't good enough for the innovative people at Dyson. With their new desk fan, Dyson has thrown out over a hundred years of axial desk fan technology to create the first fan that provides a continuous stream of smooth air.
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.