Because magnets are hard, they were heated to 800° C to demagnetize and soften them prior to grinding them to dust. The separated REE residue at the end of the process can be remagnetized by exposing ...

Preserving these archives is, therefore, important to maintaining humanity’s memory. Yet, audiovisual materials are among the most vulnerable: film reels decay, tapes demagnetize and digital formats ...

A boy who swallowed up to 100 high-powered magnets purchased online has undergone major surgery to remove them.

Doctors in New Zealand had to remove part of a 13-year-old boy’s intestine after he swallowed dozens of strong magnets bought ...