High-powered magnetic balls sold at Walmart have been recalled after the Consumer Product Safety Commission warned about risk of choking, injury, and death. Thousands of sets of high-powered magnetic ...

Thousands of magnetic toy balls sold on Amazon have been recalled because they can become deadly for children. About 9,350 of the GLMZZ fidget magnet ball toys were sold from February 2025 to October ...

Linear motors are becoming increasingly practical for general motion. Many are used for long strokes of a few feet or more. One new design, however, where the magnets move relative to a stationary ...

The NEC defines a controller in a few different ways. In Art. 100, a controller is described as “a device or group of devices that serves to govern, in some predetermined manner, the electric power ...

People who saw the 1984 film 2010: The Year We Make Contact might remember a scene in which Roy Scheider, while describing the orientation of the spaceship that he’s aboard, picks up a pen and places ...