Finely spun starch fibers woven into a bandage could dissolve on your skin and be absorbed by your body, eliminating the sting and hassle of ripping it off in one fast motion. Starch fibers could also be used to produce toilet paper, napkins and other biodegradable products, according to researchers at Penn State.
Cities can only do so much to improve bicyclists’ safety — bike lanes and automatic traffic light sensors are great, but motorists are really the ones who have to pay attention for bike riders to be safe. An intrepid mechanical engineer has one solution: Make bike lights as obvious as car lights.
Scientists at the University of Maryland at College Park have managed to clock a floating piece of graphene at an unbelievable 60 million rpm, far faster than any other macroscopic object yet measured. Even crazier: Given graphene's strength, one of the scientists says that may only be a thousandth of its possible top speed.
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.