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BicycleRepairMan (Member Profile)

Evolution in 2D

Quick Science Sift #12: Supersaturated CH3COONa Fun!

joedirt says...

Dag, supercooling works in many forms.


For bottled water, there are not enough impurities to for seed crystals, so it cannot form ice if super cooled in undisturbed fridge. Then it will instanly freeze (like in this video).

The difference is one is a super cooled liquid, where this is supersaturated solution that crystalizes and exothermicly creates the same amount of heat in those hand warmers.

Supercooling

supersaiyan93 says...

i wouldn't agree with the above in saying the commenting system is gay, but i don't like the way it looks at me. And it sure has personal space issues.

[ontopic]how do you supercool water like that? I imagine the results of this experiment would be super cool (all possible pun allowable by law intended) in zero gravity.

Supercooling

rhettnyedotorg says...

this comment program is gay it takes me back a page when i use the backspace, unless my mouse is over the typing box.

what i was gonna say before i got backspaced by lame design was:

i don't understand how this supercooled water trick works. how come when i put a bottle of water in my -10 C freezer it turns to ice instead of supercooled water? does the water have to be distilled perhaps? please inform me! cool vid!

Futurama - A race with a quantum finish

rembar says...

So anything that's mainstream can't supercool, and anything that is supercool is for an elite group of people? Hmmm...sounds like begging the question to me. Oh well, I just laughs when I sees 'em.

Futurama - A race with a quantum finish

Futurama - A race with a quantum finish

Beer Freezes Instantly Before Your Eyes

joedirt says...

Hello? There are like 100 of these videos on YT. It works with any carbonated beverage in a glass bottle (maybe sugar content and nutrasweet would inhibit this).

Anyways, freeze said beer or coke bottle until just before freezing. Rap on surface, the gas that comes out of suspension increases pressure and causes it to freeze. Water in a bottle obviously won't work. Carbonated water in sealed glass bottle (?). Beer in a plastic 20oz bottle (?).

It's probably somewhat related to purity and crystalization sites, but I think the carbonation makes this different from typical supercooled liquid freezing.

Beer Freezes Instantly Before Your Eyes

White Board Stop Motion

Emo Assault Squadron - goth "cops" patrol for emo kids



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