This is an installation at the Kortrijk biennale, where I was in the vacation for the workshop. It is made by the artist David Bowen and in this installation he shows how the water moves and change constantly and how it feels if your're under the water, which explains the title of the installation; 'Underwater'.
He doenst made-up the movements. The installation translate what the sensors in the water intercept.
Maybe there are more examples at his website: http://www.dwbowen.com/index.html