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This is a glass (thelemmy.club)
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[-] Kolanaki@pawb.social 34 points 1 day ago* (last edited 1 day ago)

Unless it is in a vacuum, the glass is full.

50% water, 50% gas mixture.

[-] rmuk@feddit.uk 5 points 17 hours ago

I can't believe no-one else has posted this yet.

Relevant xkcd: https://what-if.xkcd.com/6/

Also, relevant xkcd video: https://youtu.be/0EytSWiKrFg

[-] rockerface@lemmy.cafe 36 points 1 day ago

Topologist: The glass is full of glass. Everything else is on the outside.

[-] surewhynotlem@lemmy.world 4 points 1 day ago

If it were a vacuum the water would quickly boil away with any remaining turning to ice.

[-] cenzorrll@piefed.ca 2 points 1 day ago

It wouldn't freeze unless you drop the temperature as well.

[-] jerkface@lemmy.ca 9 points 1 day ago* (last edited 1 day ago)

The phase transition from liquid to gas absorbs all the thermal energy in the remaining liquid and causes its temperature to drop to freezing point. You are familiar with this effect if you have used a tank of compressed gas; the tank gets cold as you release the gas and you might see condensation on the tank up to the liquid level.

But then the remaining ice in the glass sublimates anyway.

[-] PattyMcB@lemmy.world 4 points 21 hours ago

Who are you who are so wise in the ways of science?

[-] Tlaloc_Temporal@lemmy.ca 1 points 11 hours ago

Just some jerkface.

this post was submitted on 28 Jul 2026
467 points (96.2% liked)

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