this post was submitted on 27 Dec 2025
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Science Memes

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[–] Rhoeri@piefed.world 23 points 14 hours ago (2 children)

A straw has one hole that is open to two entrances. Like a single tunnel. We never say that a tunnel has two holes.

[–] Nomorereddit@lemmy.today 1 points 7 minutes ago

A tunnel has two holes.

[–] HeyThisIsntTheYMCA@lemmy.world 6 points 10 hours ago (2 children)

I got a T shaped cat tunnel. It's got two holes. I think. Topology can go suck a lemon

[–] Rhoeri@piefed.world 2 points 4 hours ago

Which is why I said SINGLE tunnel.

[–] Natanael@infosec.pub 2 points 6 hours ago

Still one hole unless there's isolated sections