Biological threats -- everything from malicious biological weapons to naturally occurring pandemics -- are tricky threats to approach. Pathogens' ability to emerge rapidly and spread even faster over large populations is particularly worrisome, as our usual method of developing medicines and vaccines takes nothing if not time -- lots and lots of time. But the army is looking for a simple procedure -- a quick pffft! of air followed by a short bzzzz!
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.