Even in places where potable drinking water is scarce, some kind of water is ofter obtainable--even if it’s the stuff that usually ends up in the latrine. SiGNa Chemistry Inc. is taking advantage of the hydrogen in that water with a new portable canister that can power a small fuel cell to juice up mobile electronics on the go. Think of it as fuel for a fuel cell; just add water.
It was disconcerting last month when industry officials reported that China had halted shipments of rare earth elements to Japan. Now, if reports in the New York Times are true, it seems the secret embargo has widened to include the U.S. and Europe. Anonymous officials claim that Chinese customs officials quietly imposed the export restrictions on Monday morning, just hours after a top Chinese trade official denounced U.S. trade actions.
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.