our favorite part: the super cooled magnets that 'float' over the magnetized track.
but that's not why it was the fav part of our day - there was a mishap when the student poured the liquid nitrogen into his styrofoam cup and it tipped, causing a rush of liquid nitrogen down the table and all over bosco!
his face was priceless... and so was his 'smoking' stomach. talk about a close encounter with chemistry
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