Spinning toys and tops have unusual behaviors. The famous tippe top flips itself over and spins on its stem. The PhiTOP stands up on its end, which you can also do with a hard-boiled egg. These behaviors all have to do with torque and angular momentum, like a bicycle wheel precessing around a rope due to gyroscopic behavior.
Cocktail Chemistry
Russian breakdancer search for the participants of the Soviet Union's Breakdancing competition held in 1986. Most of the breakdancers are in there 40s and 50s today.
