Solar-powered keyboards exist and have for a long while—I've been using one from Logitech for several years now as a travel companion, because I'm not all that fond of pecking away on a laptop ...

The number of ways to harvest energy that would otherwise go unused and wasted is extraordinary. To cite a few of the many examples, there’s the heat given off during almost any physical or electronic ...

Solve a basketball jump physics problem by tracking how mechanical energy changes from takeoff to peak height. This video explains kinetic energy, gravitational potential energy, and energy ...

An international research team has developed mechanical metamaterials with a high elastic energy density. Highly twisted rods that deform helically provide these metamaterials with a high stiffness ...

Lenovo’s concept keyboard boasts a slim solar panel for efficient solar energy capture. It also includes a unique circular fidget button that, when rotated for around five minutes, generates enough ...