GFDL - Geophysical Fluid Dynamics Laboratory

The Coriolis effect is an apparent curving of the paths of moving objects that results from the rotation of the Earth.  Motions of winds, ocean currents, airplanes, rockets, projectiles, etc. are deflected by this rotation.  These demonstrations will use turntables as analogs for the Earth.  The analogy is not perfect since the Earth is spherical, but the demonstrations do illustrate the effects of rotation.  Note that when looking down on the North Pole the rotation of the Earth is in a counterclockwise sense while looking down on the South Pole the rotation is in a clockwise sense thus the effects will be opposite in the two hemispheres.