Sweepers Clock / Maarten Baas

Another ´Real Time´ item by Maarten Baas (see also yesterday's post) was this 'Sweepers Clock', where a camera films 2 men from high above while they keep the time by sweeping the hands of the clock.

Almost 11:45 here.. :)
The Sweepers Clock is part of the current exhibition 'Hide & Seek' in the Groninger Museum.