Electricity from a water wave

Device description:

The exhibit consists of a structure and a tank with liquid and a metal model of a lantern. It is equipped with a mechanism that enables the generation of the wave phenomenon and the use of energy.
http://cngsystem.pl/pl/realizacja/energia-z-fali/

Phenomenon:

The participant's task is to excite the waves by means of the mechanism and observe the formation of the current.

How to perform an experiment?

By moving the handle on the device, create waves in the water tank and observe the model of the lighthouse. Pay attention to the movement of the element floating in the water under the lantern.