The large rolling ball sculpture at "Vitensenteret",
the Science Centre and Exploratorium in Trondheim, Norway.
Here are some pictures of this sculpture which is made by the American
artist Fred Crusade.
The sculpture is completely filled with all kinds of mechanisms
from simple tracks and loops to spirals, sound producing elements including
bells and a citar, lifts and counting devices. The sculpture is hand-operatated
through two cranks visible at the front and left side.
Click on the pictures below to see full size versions.