The Air Force’s Blue Devil airship--a recent PopSci Best of What’s New recipient and a potential answer to the military’s expanding data glut problem--is getting yet another high-tech upgrade. Via a federal announcement put out last week, The Register reports that DARPA will outfit the Blue Devil Block 2 ISR airship with up to two Free-space Optical Experimental Network Experiment (FOENEX) systems. Think of them like optical lasers that move through the air with the fidelity of a fiber optic cable.
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.