In what has to make one’s inner sci-fi nerd stir excitedly, NASA has announced research that involved making mice levitate. In the past researchers in several countries managed to levitate insects, small lumps of solid matter and globs of liquid in ultrasonic fields, but Yuanming Liu and his team at NASA's Jet Propulsion Laboratory used a strong magnetic field.

Under normal conditions we don’t notice any effects of magnets on living tissues.  Of course that doesn’t mean that there are no effects.

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