It is a material that has small areas called domains that can align to an applied external magnetic field, this establishment is very high compared to the same area of air.
you mean iron.. well you use iron for lotsa things.. its a new invention i know why you dont understand it... humans just started using it in the "iron age"
To understand this explanation you must first know:1)magnetic fields exert force on moving electric charges2)moving electric charges create magnetic fields The spin of the electrons in a ferromagnet...