Northwestern Physics Demos                                 Go back to FLUIDS
DCS# 2C20.30NWU# F-4Location:    1 B 1
title: Ball on Air Jet
aka: Bernouli or Venturi effects

    Moving air, from a hair dryer or a nozzle attached to lab air, supports a ball in air.
The effect is more pronounced when the jet of air is not vertical, and this tends to make the ball spin.

   Why does the ball not get pushed out of the air stream?
    Why does the ball spin when the jet is not vertical?
pix of set upset upset up