by hclchicken » Jan 3rd, '08, 06:26
In my chemistry class my professor taught us about a chemical property that states that you can supercool something past it's freezing point and not have it freeze, as long as it's in a container is clear of imperfections, and the water is pure (de-ionized). Then by breathing on it you create a site of impurity which will create a chain of freezing and the entire solution will freeze.
I can't remember the name, but I think it's nucleophillic site, or something with nucleophile.
Now I don't think this is consider revealing anything, but if an admin will say otherwise please delete it.
I have never seen the trick that the original poster asked about, and I am doing this so they might be steered towards some scientific research on how it works so that they could make a decision on the trick.