The spectacular picture above was (reportedly) shot high above the set of a movie. Producers for an unknown movie paid a couple of Russian pilots to fly their SU-35UB jet at speeds past Mach 2.0... without a canopy! After the flight, the pilot said, "While on this speed I even managed to pull out my fingers in glove for an inch or two outside - it became heated very fast because of immense friction force plane undergoes with the 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.