This water is supercooled -20°C in a cave in Russia. I understand the water does not freeze because it is pure (no impurities). Question, why doesn't the scuba's presence in the water make ice form around him. Thanks in advance.
Help! I need a physicist or chemist.
8 years ago by magnebit (58)
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This depends on several parameters, like the pressure, temperature and density of impurities. We may have actually supercooled water here (you can find information on this a bit everywhere on the web).
I hope this helps!
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His presence is clearly not enough to cause nucleation. Or the water in the chamber is moving rapidly hindering nucleation (think like a river). Either way something would be stopping the water molecules from orienting into crystalline configuration. I can't say for certain from the picture.
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One option is that we may have a kind of slush around the diver that is not really observable on the picture.
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I know that the exhaled air is captured (or a tube to surface was used) and not released. No air bubbles. The page said they did that as to not damage the cave.
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What I was actually meaning is that we may have a kind of slushy state of water around the diver. Not icy, but not liquid too. I am however not too sure.
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My guess is that the diver's body heat keeps the suit above 0 deg C.? Pressure / depth are my second guess... Neat picture...
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i don't know anything of this, But Awesome Pic. I hope you can found help
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you should use #steemstem tag
might get more related views
Interesting question though.
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