Anyone who's ever spilled a hot beverage in his or her lap will be happy to hear that chemists at the University of Minnesota have announced a scaldproof fabric.
Water-resistant fabric, of course, has already existed for some time -- but its impermeability applies only to cool liquids. Hot coffee, scalding soup, and other liquids above a certain temperature, on the other hand, seep right through water-resistant cloth.
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.