• Inertial or apparent force.
  • Interference of a rotational movement on a translational movement.
  • Visualisation of the Coriolis force effect.


  • Visualisation of the Coriolis force effect.
  • Rotating reference frame consisting of transparent water tank with submersible pump on a rotating arm.
  • Deflection of a water jet in radial direction dependent on the speed and direction of rotation.
  • Scale to read the deflection of the water jet.
  • Closed water circuit.
  • Speed sensor with digital display.

The Coriolis effect is defined as the apparent deflection of objects moving in a straight path relative to the earth’s surface. Its strength is proportional to the speed of the earth’s rotation at different latitudes but it has an impact on moving object across the globe.

A horizontal rotating arm sits on top of the main base unit and rotates in a horizontal plane. Rotating arm has a water tank with submersible pump which projects a jet of water in to radial direction. The degree of deflection can be measured by means of the scale on water tank. Instrumentation is done for the display of speed of water jet & speed of rotation of horizontal arm.