Syria’s regime announced for the first time this week that it has chemical weapons, and stands ready to use them if attacked. A new type of paint could potentially guard against it, protecting tanks and armored vehicles with a special chemical-absorbing topcoat.
Hong Kong researchers have combined simple latex with some plastic buttons to create metamaterial panels that can stop sound waves very effectively, according to New Scientist. The reflected sound waves include low-frequency bass sounds that typically manage to sneak through the walls.
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.