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The magnetic field of a bar magnet is strongest at either pole of the magnet. It is equally strong at the north pole compared with the south pole. The force is weaker in the middle of the magnet and halfway between the pole and the center.
The rare earth metal neodymium melts at 1024 Â°C, or 1875 Â°F, or 1297 K. Use the link below to learn more about the metal that, when alloyed with iron and a hint of boron, makes the strongest known permanent magnets.