Amazing Video
Sorry I can't find the same video on Youtube, so just click the link to view it on Vimeo (it loads fast)
Engadget said:
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These students at Northeastern University have developed a human-computer interface that utilizes copper pads and our beloved theory of electrostatics. This little devil is able to track the position of a user's hand in three dimensions, without attaching markers to the body or requiring the user to hold some sort of controller.
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http://www.engadget.com/2009/04/29/s...lot/#continued