this post was submitted on 03 Apr 2026
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What is this thing?

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What is this pair of metal... Things.. hanging on traffic light pole over an intersection? (infosec.pub)
submitted 13 hours ago by hereiamagain@sh.itjust.works to c/whatisthisthing@lemmy.world
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They were on all of them in the intersection, four sets

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[–] hereiamagain@sh.itjust.works 39 points 13 hours ago (1 children)

Well I'll be! That seems right!

[–] Rivalarrival@lemmy.today 39 points 13 hours ago (2 children)

I've only ever seen them on electric wires, but I've seen light poles develop some pretty severe Aeroelastic flutter. This seems like a good way to (possibly) prevent it.

[–] DarrinBrunner@lemmy.world 12 points 13 hours ago (1 children)

This answers a long-standing question for me.