This is a stereogram of a reenforced concrete bench done by a classmate
and myself for
Concrete Structures class.
With time and practice you can get to see this image in 3 dimensions.
You have to get 'crossed eyed' until two blurred images merge into
each other
creating then the effect of depth.
(you should try to keep a minimum distance of an arm lengh from the monitor)
For your aid I put two white dots that can be used as a reference.
