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.
By the time youâre done, the ferromagnetic material has become a permanent magnet itself, a dipole having oppositional north-south poles. A permanent magnet is nothing more than a ferromagnetic object in which all the domains are aligned in the same direction. There are only four elements in the world that are ferromagnetic at room temperature and can become permanently magnetized: iron, nickel, cobalt and gadolinium.