Tagged With sensors

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You may never again have use for that stud sensor buried in your kitchen's utility drawer. A new sensor for Android smartphones called the WalabotDIY promises to let your device peer right through walls, revealing everything from pipes, to wiring, to even unwanted pests hiding between rooms.

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From 1968 until 1973, the US military spent about $US1 billion a year on a new computer-powered initiative intended to end the war in Vietnam. It went by many names over the years — including Practice Nine, Muscle Shoals, Illinois City and Dye Marker. But today it's most commonly known as Operation Igloo White.

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It makes perfect sense. The sensors that capture images for a digital camera and the sensors that convert light into electricity for a solar cell rely on the same technology. So why not build a device with a sensor that does both, and create a self-powered video camera? Some Columbia University researchers did just that.

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"You want to see our sensor?" Pierre Forcioli-Conti gestures at a high window that leads to the roof. "You'll have to climb over Matt's desk and go out the window." No problem. I wriggle through the window and climb out on top of the the refurbished 1940s movie theatre on Mission Street in San Francisco. It doubles as his office.