Inspired by a pond microorganism that retracts its spiral stalk using geometry alone, soft gel helices now wind and unwind on their own to amplify motion.
At first glance, it looks like a plain, slightly glossy sheet. Then it goes through a quick bath, the temperature shifts, and a famous face comes back from nowhere. In one demonstration, a film made ...
“The electrocytes in electric eels are ultra-thin biological cells, capable of generating over 600 volts of electricity in a ...