The physical world & IT

Smart dust” is almost magical stuff, so powerful and rich in potential that it deserves a science fiction series all its own a la Harry Potter or the Hardy Boys, except that smart dust is not fiction. It is a term for very real, very tiny machines called motes that pair micro-electro-mechanical systems or sensors (MEMS) with wireless communications in the form of active RFID tags. About the size of a quarter or even smaller, battery-powered motes can be designed to sense any physical or chemical change and pass that information wirelessly along to another machine — no ...

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From the Print Issue

November 2009

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