We will join our own Ken Purcell as he teaches us about Liquid Nitrogen and all the crazy experiment's
Creeping Fog: Dry Ice fog with green laser.
Condensing Air: the extreme cold liquifies the air in balloon shrinking it, can reverse several times
Levitation: Superconductor/Magnet, magnetic levitation and pinning (setting the magnet and superconductor in a fixed distance/upside down etc.)
Frozen Flowers: Carnations can be crushed into a powder by hand, great audience participation
Frozen Rubber Balls: Ping pong balls (no change), Superball (hard as a rock), Squash balls (shatters)
LED color change: Red/Orange LED color shift. As the LED cools down the semiconductor band-gap changes and the color will shift
Poppers: Plastic Film Cans w/ lids, pressure builds and pops lid for nice sound effect
Bare Light Bulb: Clear light bulb where the glass envelope has been removed. Filament is protected from burning out by LN2 atmosphere in transparent cup/dewar.