magnetic attraction; magnetic bottle; magnetic bubble memory; magnetic compass; magnetic core; magnetic core memory; magnetic declination; magnetic dip; magnetic dipole; magnetic dipole moment; magnetic disc; magnetic disk; magnetic equator; magnetic field; magnetic field strength; magnetic flux; magnetic flux density; magnetic flux unit; magnetic force; magnetic head; magnetic inclination; magnetic induction; magnetic ink; magnetic intensity; magnetic iron-ore; magnetic levitation; magnetic line of force; magnetic medium; magnetic meridian; magnetic mine; magnetic moment; magnetic monopole; magnetic needle; magnetic north; magnetic pole; magnetic pyrites; magnetic recorder; magnetic resonance; magnetic resonance imaging; magnetic storage; magnetic storage medium; magnetic storm; magnetic stripe; magnetic tape; magnetic variation;