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water tetris Play tetris on a 3D display made of water

Here’s a pretty awesome 3d display, that uses synchronized droplets of water to project a 3-layer image. Rather than try to project simultaneously on 3 surfaces, the system actually works by interlacing. Each sheet of water can be turned on and off to create thin lines, which are synchronized so that only one of the sheets puts out water at a time. Then, a computer vision system tracks the location of each line, and a single projector illuminates it with the correct information. [via technabob]

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