New top story on Hacker News: An “acoustic metamaterial” that can cancel 94 percent of sound - Viral Content

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    • Saturday, March 9, 2019

    Home Hacker News New top story on Hacker News: An “acoustic metamaterial” that can cancel 94 percent of sound

    New top story on Hacker News: An “acoustic metamaterial” that can cancel 94 percent of sound

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