“Smart dust. Sounds like a new cleaning agent, or perhaps a “designer” drug from the Eighties. But smart dust, emerging in an era of ever-increasing processor speeds and nanotechnological breakthroughs, promises transformative changes in the way we live.

Smart dust refers to collections of minuscule sensors that can monitor and transmit data such as temperature, humidity, light, location and acceleration. They can detect chemicals or gases in the air. And eventually they will transmit sound and images as well.”

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http://www.northjersey.com/news/business/84759412__Smart_dust__aims_to_revolutionize_lives.html