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Acoustic Superlens Built From Soda Cans 59

Posted by timothy
from the sir-these-expense-reports-are-alarming dept.
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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I've never been canoeing before, but I imagine there must be just a few simple heuristics you have to remember... Yes, don't fall out, and don't hit rocks.

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