Can a magnetized ship go to the South Magnetic Pole on its own accord? Let's say it is currently located in the Southern Hemisphere so the attraction from the N-pole in the South Magnetic Pole is stronger than the attraction from the S-pole in the North Magnetic Pole. Let's also say that there is no friction and that as long as the ship accelerates slightly towards the South Pole, it is moving. If it works, what is doing the work? Static magnetic fields cannot do work. Did we do work by magnetizing the ship in the presence of the Earth's magnetic field?