Smash the bottom out of a bottle bare handed
Bill Beaty is our favorite kind of science teacher.
Here he gives us a lesson in cavitation. Sounds boring, right?
Ha! Not when he teaches us a wild trick to illustrate this physics phenomenon!
Bet anyone holding a beer bottle that he can't break it using only his hands. Secret: the smash only works when the liquid is NOT carbonated. So, make sure to fill your bottle with water before making the wager.