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1 .This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute.
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2 .Thanks to WiFi we can watch movies, play games, and check email, from the comfort of the couch.
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3 .And soon we may be able to repurpose our WiFi signals so we can turn on the coffeemaker or turn off the TV with a simple flick of a finger, from anywhere in the house.
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4 .Researchers described their prospective system, called WiSee, at the International Conference on Mobile Computing and Networking.
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5 .The idea is similar in concept to the Xbox Kinect,
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6 .which uses cameras to recognize a game player's movements, and translates them into an action onscreen.
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7 .But WiSee works without cameras.
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8 .Instead, it uses the ambient wireless signals put out by our smart phones, laptops, routers and tablets.
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9 .When we move, we alter the patterns of these WiFi signals.
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10 .The WiSee receiver detects those disturbances and interprets the motions that cause them, like waving or swinging your wrists.
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11 .Of 900 gestures tested, WiSee could identify 94 percent.
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12 .The user assigns a particular motion to a specific gadget,
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13 .the motion doesn't have to be the one that works in the real world.
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14 .So if all goes well, you may actually be able to punch your lights out.
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15 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Karen Hopkin.
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