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Acoustic Superlens Built From Soda Cans 59

Freddybear writes "Researchers in France have assembled an acoustic superlens from an array of soda cans. The cans act as resonators, and by exciting the array with tailored sound waves, the sound volume can be made to peak in specific volumes less than a few centimeters wide."
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Acoustic Superlens Built From Soda Cans

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For large values of one, one equals two, for small values of two.