Filed under weird thing you learned when your kids were in college

when my son started college, he started at Carnege Mellon U in Pittsburg, PA. one of the perks of the science lab, was an almost unlimited supply of liquid nitrogen-- all you needed was a safe container to transport it in. (any real glass thermos would do.)

very early in the term, my son learned that liquid nitrogen, combined with a carbonated drink (a fountain soda, say) would result in instant, super cold slurpies!

the gas suspended in the liquid prevented it from freezing as a solid mass. and the liquid nitrogen, was so cold, it made super cold ice crystals.. and a sure fired brain freeze.



my other obsession