Researchers at Microsoft and the University of Washington demonstrated that the human body can be used as an antenna to direct electromagnetic "noise," or ambient radiation—in this case from wiring in a wall. The resulting signal could be used to control a gesture-based interface. Gesture-based interfaces such as the Nintendo Wii'and the Microsoft Kinect have transformed gaming. The new work, which represents a novel way to measure gestures, could make such interfaces less expensive and easier to install. The system could use electromagnetic radiation from home appliances and mobile-phone signals as well as from home wiring.
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