Product number: HFC29

This bench top unit gives excellent visual demonstration to the Coriolis Force on a jet of water.


A horizontal boom sits on top of the main base unit and rotates in a horizontal plane. Attached to the boom is a water tank which projects a jet of water in to the tank. The jet is directed towards the centre of rotation of the boom.

An electronically controlled motor rotates the boom at different rotational speeds. As the speed of boom rotation is changed, the jet of water deflects under the Coriolis affect (force). The amount of deflection can be seen on increments on the water tank for recording purposes.

The speed of rotation of the boom is digitally displayed on the front panel of the base unit and controlled using the front panel mounted knob. The boom is counter balanced to ensure smooth, stable running of the boom at high speeds.

All rotating components are protected within a clear safety dome.

Specifications and resources

12Vdc operating voltage
Adjustable water jet travel
Rechargeable battery pack for pump: 4-5 hours operation between charges
Boom speed: 0…55rpm maximum
Clockwise or anticlockwise boom rotation
Jet speed: 1.55m/s approximately
Jet distance: 110mm approximately
Deflection scale: 0....95 mm