Supercooled water

[visualpoet]

Learned that you can cool water below freezing while maintaining it as a liquid.

Took this video in my brother's van.

[PointBlank]

It froze when he shook it? Weird.

[Accrdwgnguy]

damn thats cool

[fatboy1185]

That is cool and I'm going to try it!

[visualpoet]

It froze when he shook it? Weird.

Apparently when you shake it, it causes air bubbles to mix in and that starts the ice forming. After I posted mine, I found a bunch of vids on youtube about it. Some pretty cool experiments, including a simple solid tap to start a slow formation of crystals. The water has to be fairly pure, and it helps if it sits until the air bubbles settle out of it before it starts freezing or it'll grab on to a bubble and just freeze up.

[visualpoet]

hate to burst some bubbles my new friend. i take it those are unopened bottles straight from the shelf. i believe that rather than it being purity keeping from freezing, it may actually be raised sodium levels.

atleast the dasani. of course coca cola adds salt to their water. to make you thirtstier.

I wondered about the sodium myself, but I had to look up the process last night to see why it happens. Science says it's due to the purity of the water, I think a slightly higher sodium content would actually make it freeze rather than supercool.

[TheNextEpisode]

Going to ask my thermo prof for further explanation.

[TypeG]

i do this with beer sometimes.

ever seen an ice cube glow red hot? later.

[visualpoet]

i do this with beer sometimes.

ever seen an ice cube glow red hot? later.

Done it with beer many times, I love a beer slush. I always assumed it was pressure and alcohol content keeping the beer from freezing. I've never shaken anything supercooled, just opened them and started the process.

I would love to see a red hot ice cube though!

[visualpoet]

i didn't mean to come off so... matter of fact. i was in an argument somewhere else about something else and my 'tude carried over. sorry about that.

the sodium issue make me think about the oceans near the poles. water temps are often well below freezing, "they" say it is the salt that keeps it from freezing, and what actually freezes up top is basically condensation, like fog or dew. making it freshwater. hence the panic about the ice caps melting and dropping fresh water into the oceans, throwing off the balance and all that.

I didn't take it as attitude at all, no problem, but have you ever had a mouth full of ocean water? It's obviously saltier than anything you buy in a bottle. Enough sodium to affect the freeezing point that much would be noticeable, I think.
There's another group of "they" that says the polar caps are doing what they do, we can't change it; it's part of the natural cycle. We haven't really been keeping track of them long enough to really kow what we're doing. There's also a school of thought that says we're fools to believe that we can make that big of an impact on the planet. They believe that the changes we're observing are natural and it's our own ego that makes us think we're responsible.

[TypeG]

Done it with beer many times, I love a beer slush. I always assumed it was pressure and alcohol content keeping the beer from freezing. I've never shaken anything supercooled, just opened them and started the process.

I would love to see a red hot ice cube though!

beer slush is good, lol.



later.

[visualpoet]

I wondered if it was done by induction. Pretty freaking wicked to see it.

[lokuputha]

this will be the party trick of choice tomorrow

[verothacamaro]

i take it those are unopened bottles straight from the shelf. rather than it being purity keeping from freezing, i wonder if it is actually caused by raised sodium levels.

atleast the dasani. of course coca cola adds salt to their water. to make you thirtstier.

edit: for rudeness.

don't forget that salts are electrolytes...


The "active" ingredient in Gatorade is salt.

[JohnD1079]

The other day when I grabbed water out of my car, all of them were completley frozen except for 1. Now I know why