From Popular Science: Electromagnetic waves can travel over long distances without interruption. But magnetism, the field that attracts or repels objects, only works at close range. Now a team of Spanish and German researchers proves otherwise: They have developed a “magnetic hose,” capable of transferring a magnetic field across long distances in any direction they want. The problem is that magnetic fields decay very quickly with increasing distance from the source. That’s why papers fall off your refrigerator when you stack them too thickly. This new method would amplify those fields, allowing magnetic fields to still propagate far away from the magnetic dipole that generates them. It requires a metamaterial magnet-amplifier.

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