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mjmj
on March 9, 2019
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An “acoustic metamaterial” that can cancel 94 perc...
If affordable, all I can think about is how much this could help musicians or bands that practice at home without disturbing the neighborhood.
lolc
on March 9, 2019
[–]
If you want to feel the kick of your drum, your neighbours will hear it too. This gadget won't help.
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