Small sensors powered only by sunlight could float in the stratosphere indefinitely and make weather-related measurements. There is a known effect for levitating flat objects with two sides called ...

Chinese scientists have built and tested a floating droplet electricity generator (DEG) to turn the kinetic energy of raindrops into renewable power. Unlike conventional DEGs, which are used on land ...

Often associated with refreshing a sense of being renewed and a peaceful calmness, raindrops may soon become tiny engines of clean energy. Researchers at the Nanjing University of Aeronautics and ...

image: Inspired by how dandelions use the wind to distribute their seeds, a University of Washington team has developed a tiny sensor-carrying device that can be blown by the wind as it tumbles toward ...