ELI5: the light can be blocked entirely, but why the sound can’t Submitted by IcyPause7334 t3_11cxss5 on February 27, 2023 at 12:31 AM in explainlikeimfive 18 comments 1
czl t1_ja5r3f1 wrote on February 27, 2023 at 1:14 AM Sound can be blocked completely. One way to do it is to create a vacuum: https://youtu.be/oY_9hKdTG8o Sound can also be cancelled by adding to it the opposite sound: https://youtu.be/Yllle-Eq4ek Permalink 2
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