322 by njaremko | 92 comments on Hacker News.
New best story on Hacker News: An “acoustic metamaterial” that can cancel 94 percent of sound
An “acoustic metamaterial” that can cancel 94 percent of sound
322 by njaremko | 92 comments on Hacker News.
![librobucher]()
322 by njaremko | 92 comments on Hacker News.
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