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Water Window

 Adaptive window that refracts incident light producing the effect of water ripples
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A window that can flex across its surface, thereby refracting incoming light to produce the effect of water ripple patterns within a room.

Potential implementation:

A flexible plastic material as the main window surface, containing a matrix of expansion chambers, connected to the window casing by narrow channels. Each channel would be connected to a piston that could be moved to alter the air pressure within the respective expansion chamber. By coordinating the movement of all the pistons a specific pattern of window deformation could be produced, and with a sufficiently fine grid of chambers the desired ripple pattern (or any other pattern) could be produced.

—drainfood, Jul 17 2003

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       if you can do it, I'll buy one.
—neilp, Dec 21 2004
   

       Those projected patterns from rippling water are called caustics. I mean, if anyone cares, that is.
—bristolz, Dec 21 2004
   


 

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