This thread originates from within 'usenet', and as such the content and users are not guaranteed to have been moderated by our community. Don Phillipson:[nq:1]I'm watching the Simpsons. Bart says Eat my shorts a lot and I know it's some kind of insult. But I'm just wondering what SHORT means in this sentence.
Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include iron, nickel, cobalt, some alloys of rare earth metals, and some naturally occurring minerals such as lodestone.
A permanent magnet is a magnet which will keep its magnetism for a very long time and is difficult to change. Jerry: No, As I think a permanent magnet means they have abili â¦ ties to hold the magnetism when they are magnetized. permanent magnet will retain its magnetism unless it is affected by a strong outside magnetic or electrical force, or elevated temperatures.