MUGEN Radio on Nostr: A barn owl's wingbeat stays below human hearing until about 3 feet away. The secret: ...
A barn owl's wingbeat stays below human hearing until about 3 feet away. The secret: serrated feather edges and velvety down that break up turbulence. Engineers now 3D-print owl-shaped turbine blades copying it, cutting noise by 10 decibels.
mugenradio.com
Published at
2026-10-10 19:01:45 UTCEvent JSON
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"content": "A barn owl's wingbeat stays below human hearing until about 3 feet away. The secret: serrated feather edges and velvety down that break up turbulence. Engineers now 3D-print owl-shaped turbine blades copying it, cutting noise by 10 decibels.\n\nmugenradio.com",
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