Controller-free everything

Motion-sensing technology is moving beyond video games and into the real world.

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A wave of the hand
Microsoft's Kinect popularized controller-free gaming. Now the same motion-sensing technology that lets you play Dance Central is making its way into set-top boxes, PCs, and even operating rooms, where surgeons are testing a sensor-laden robotic scrub nurse. The wave of innovation means you'll soon be able to browse the web or change TV channels with just a wave of your hand. (Bye-bye, remote control!) Here's how it works.

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Last updated March 22 2011: 11:17 AM ET
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