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Hearing is be-leafing: Students invent quieter leaf blower (hub.jhu.edu)

submitted 6 months ago by TheReturnOfPEB@reddthat.com to c/technology@lemmy.world

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[–] cactusupyourbutt@lemmy.world 14 points 6 months ago (1 children)

wtf is shifting?

[–] gravitas_deficiency@sh.itjust.works 30 points 6 months ago (1 children)

The wording is comically awkward and imprecise. But if I had to guess, they figured out a way to fiddle with how the air is routed through the secondary portion such that the emitted noise is phase-shifted to cancel out the frequencies they’re targeting.

[–] dditty@lemm.ee 13 points 6 months ago (2 children)

Seems baffling

[–] Tyfud@lemmy.world 4 points 6 months ago

Eeeeeeeeeeyyyyyy

[–] gravitas_deficiency@sh.itjust.works 2 points 6 months ago

But you can’t deny it has a certain flow to it