mr j egg in bottle, thanks Sierra!*
mr j can crusher, thanks Sierra!*
mrj card trick * thanks Sierra!
karate mr j thanks Sierra!*
egg in bottle
can crusher
can crusher 2
spray can thought experiment*
dry ice
cartesian diver
card holds in water
karate and air pressure
how a suction cup works
butane lab*
gas stoichometry lab *
space shuttle*
graham's law*
demo boiling cold, *
volatility race *