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Acoustic Superlens from Soda Cans

Freddybear (1805256) writes | more than 3 years ago

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Freddybear (1805256) 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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