Uncertainty Principle: the setup

I was asked for the setup picture for The Uncertainty Principle so here it is.

 

No Photoshop.

No Gimp.

Part of the floor is sliding.

The shutter is on a long time.

I move it back and forth during the exposure.

Few tens of pictures later you get the desired effect.

 

Simples (as the Meerkat would say)

 

Done