How are magnets used in waste management?

Apr 23, 2025 ... Elon Musk says China wants assurances that the rare-earth magnets needed to build Optimus won't be used for "military purposes." The mining industry uses magnets to separate ore from metal; pharmaceuticals are subjected to a magnet sweep to remove any iron particles. Aug 21, 2018 ... What do compasses, fans, and high-speed trains have in common? They all use magnets to function. Magnets are rocks or metals that create an ... MRIs employ powerful magnets which produce a strong magnetic field that forces ... used to image knee and shoulder injuries. In the brain, MRI can ... Jan 19, 2024 ... What magnets to y'all use for your accessories? All the ones I've tried just aren't strong enough. Also how are you attaching them because I used hot glue. ... magnet, i.e. closed, tunnel-type MRI or open MRI. The most commonly used magnets are superconducting electromagnets. These consist of a coil that has been ... A liquid nitrogen tank is used to minimize the heat input into the helium tank. In addition to the main coil, the magnet incorporates a number of additional ... We will review the most common magnetic devices in use for pediatric surgical conditions as well as their outcomes and complications. Magnets are metals that attract other metals. Every magnet is a metal, but not all metals are magnets. They may have practical uses, like keeping doors shut ... I have two magnets that have fallen out from the bottom of the heat bed. My first thought was to superglue them back into position.