One of the perennial challenges of building robots is minimizing the size and weight of drive systems while preserving power.

Hot glue guns are pretty simple beasts: there’s an on/off switch, a heating element, and a source of current, be it battery or wired. You turn it on, and the heater starts warming up; ...

General Motors has been hit with a $6 billion charge tied to its electric-vehicle business, the clearest signal yet that the company is recalibrating its EV plans as the bottom has rapidly fallen out ...