this post was submitted on 14 Feb 2026
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[–] xep@discuss.online 14 points 9 hours ago (2 children)

It's interesting because very pure water without asperites can be heated above 100c at standard pressure at sea level without boiling. But once impurities are added to it it starts boiling vigorously!

[–] fibojoly@sh.itjust.works 7 points 7 hours ago (2 children)

Sounds like the same thing that happens at 0°C with very pure water that stays liquid, but shake it and bam! It insta-freezes.

[–] Kellenved@sh.itjust.works 3 points 7 hours ago

Sometime water bottles display this trait in temps just below freezing. Liquid water in the bottle but break the seal and pop! Frozen

[–] reptar@lemmy.world 2 points 7 hours ago

Doesn't have to be pure for that! I've seen it happen with those cheap plastic sleeve popsicles. It's kind of fun flicking them and watching the ice radiate through.

[–] HugeNerd@lemmy.ca 4 points 8 hours ago (1 children)
[–] xep@discuss.online 7 points 8 hours ago (1 children)

Imperfections in the surface of the container the water is in. Sorry, I intended to write 'water in a container without asperites'!

[–] HugeNerd@lemmy.ca -4 points 8 hours ago

Hm, still not sure what "asperites" are. You seem to be describing asperities.