this post was submitted on 12 May 2026
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37
The Walls Don’t Have Ears, But Fiber Optic Does (hackaday.com)
submitted 3 hours ago by Gsus4@mander.xyz to c/technology@lemmy.world
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[–] MonkderVierte@lemmy.zip 9 points 2 hours ago* (last edited 2 hours ago) (1 children)

Besides, if researchers can do this successfully, you would imagine three-letter agencies around the world could do it even better.

You can't just listen to a random fiber on the switch. You'd have to prepare a piece carefully and add the measuring system, by which point a micro is easier and smaller.

[–] gedaliyah@lemmy.world 1 points 56 minutes ago

Yeah, it basically says, "researchers could potentially measure vibrations in the air to detect speech."

I know. That's how speech works.

[–] IWW4@lemmy.zip 2 points 1 hour ago

/boggle

And in other news, water makes things wet.