Talk:Supercooling
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Melting point or freezing point ?
[edit]The first line says "Supercooling is the process of chilling a liquid below its melting point..." but the next line says "A liquid below its freezing point will crystallize ...". IMHO for a liquid, the 'freezing point' is applicable. If there are no objections, I'll change the 'melting point' to 'freezing point' -- WikiCheng | Talk 04:47, 27 August 2007 (UTC)
- This is incorrect--the melting point and freezing point can happen at different temperatures. See for instance Figure 8 in Zachariassen and Kristiansen 2004 Cryobiology--pure water will melt at 0 degrees and freeze at -17 C or so. Kemarshall (talk) 19:56, 26 September 2022 (UTC)
I changed it as the article melting_point clearly mentions "When considered as the temperature of the reverse change from liquid to solid, it is referred to as the freezing point." -- WikiCheng | Talk 04:53, 27 August 2007 (UTC)
i want some 1 to tell me how to do this all i know is that its kool —Preceding unsigned comment added by 75.108.40.89 (talk) 22:20, 13 November 2007 (UTC)
"In animals" section
[edit]This revision by an anonymous user on 2017-03-25 placed a paragraph into the "In animals" section that is unacceptable for a Wikipedia article. I don't know if he is right or wrong, I'm just a passing editor, but at the very least he could have used a dubious template instead. EpsilonCarinae (talk) 05:44, 12 January 2018 (UTC)
- I removed the commentary. It definitely doesn't belong in the article itself. As far as their objection, I don't think they're correct. The Antifreeze proteins article states that these don't simply depress the freezing point like antifreeze for your car, but actually inhibit the growth of nucleation sites, which is consistent with achieving a supercooled state. dimhue (talk) 06:49, 16 March 2018 (UTC)
- I also reworded the first line in that section, which someone changed the references to freezing point depression. Based on the description of the processes, I am certain it's describing a supercooled state and not freezing-point depression, because the liquid is clearly below its freezing point if ice crystals start to form. — Preceding unsigned comment added by Dimhue (talk • contribs) 06:57, 16 March 2018 (UTC)
Supercooling in spaceflight
[edit]Supercooling or super-chilling is also mentioned in spaceflight applications, although there it simply means "cooling down fuel to just above the freezing point" (as opposed to cooling it down just below the vaporisation point.) Should this find mention here? Here are some uses of the terms: https://qz.com/627430/the-super-chill-reason-spacex-keeps-aborting-launches/ https://www.techbriefs.com/component/content/article/tb/pub/techbriefs/machinery-and-automation/30024 --Syzygy (talk) 15:36, 16 September 2020 (UTC)
Link to article about metastability
[edit]The article should link to metastability for a general treatment of metastable systems. — Preceding unsigned comment added by 89.23.239.207 (talk) 08:26, 11 December 2024 (UTC)