Magnets are great for all sorts of applications especially if they are super strong, allowing you to hang a variety of gadgets, cables, keys or anything else that is attracted to the pull of a magnet.
If Ed Scruggs, of Austin, Texas, hadn’t seen it for himself, he might never have believed it. But there it was on his 11-year-old daughter’s X-ray: a string of tiny, super-strong spherical magnets in ...