Fc-4 Funnel & Ball


To Demonstrate airflow.


  • Ping pong ball
  • Vacuum cleaner blower
  • Variac
  • Glass funnel
  • Hose adaptor

Funnel and Ball Funnel and Ball Diagram

Funnel and Ball plus Diagram.


This is a variation of the parallel plate paradox. The most satisfactory method is to push the ball into the narrower region of the funnel where it is held in a position of stable equilibrium.