PopSci recently attended a demonstration of the Boeing 747-sized Evergreen Supertanker. Given the recent blazes in the Western U.S., firefighting crews may very well appreciate an airplane that can dump 20,500 gallons of water in 10 seconds.
For more on the smoke monster, check out this eerie time-lapse video of the clouds as seen from the ground.
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.