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A New Direction for Digital Compasses

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Digital compass

A scanning electron microscope image of the digital compass created by Baolab.


Cell phones and many other mobile devices now come packed with sensors capable of tracking them as they move. The digital compasses, gyroscopes, and accelerometers embedded in such devices have spawned a wide range of location-based services, as well as novel ways of controlling mobile gadgets—for instance, with a shake or a flick. Now a new way of making these sensors could make such technology smaller and cheaper.

From Technology Review
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