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How do you get water to freeze faster?

gaidensensei said:
Why would you want it to freeze faster, though? Unless you're trying to make ice cubes on the pronto?
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A few weekends ago we had a cocktail party and wanted to do exactly this. I've tried the experiment of freezing water at different temperatures, but it doesn't make much difference TBH.
 
Mike Gayner said:
A few weekends ago we had a cocktail party and wanted to do exactly this. I've tried the experiment of freezing water at different temperatures, but it doesn't make much difference TBH.
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if you're not throwing the water into the air, it's not going to make a different.
 
Mike Gayner said:
What exactly happens if you pour liquid nitrogen into a drink? I supposed the nitrogen just boils away leaving its delicious coldness behind?
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Yup, you can make some nice slushies this way. Just be sure to stir well, you definitely do not want to end up with a blob of liquid nitrogen in your mouth.
 
brblx said:
if you're not throwing the water into the air, it's not going to make a different.
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Mpemba effect still happens when placing different temperature water in the freezer as proven by Dr. Denis G. Osborne. See Wikipedia.

Leidenfrost effect indicated that water boils faster in a lower temperature boiler than a higher temperature boiler.

PS. If everyone are from the same school of though as you we wouldn't have cone shape reverse cone shape torpedo that do 250+ knots or golf ball dimpled car skin that goes faster than a smooth surface car skin.
 
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Mike Gayner said:
Not useful when you want ice cubes. Cool avatar BTW.
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You could make a thin ice sheet and then cut out squares. You could "glue" those square sheets together with a bit of melted water to make a cube. I imagine it is possible to build a machine that could produce ice cubes this way faster than it takes an ice cube to freeze.
 
I'll just go ahead and call bullshit on the "hot water freezes faster" thing. I put hot water in the ice cube tray and it took more than 10 hours to freeze. I put them in before going to bed and they were still liquid when I woke up 🙁
 
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