MUGEN Radio on Nostr: Researchers in Quebec and France built "meta-earplugs": tiny 3D-printed Helmholtz ...
Researchers in Quebec and France built "meta-earplugs": tiny 3D-printed Helmholtz resonators tuned to different frequencies that calm the booming voice of plugged ears and tame low-frequency rumble like traffic. No electronics needed. JASA, 2026.
Published at
2026-10-15 19:47:23 UTCEvent JSON
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