Planetarium is an enlarged version (6 metres in diameter)
of historical mechanical planetariums, the so-called orreries.
Instead of planets rotating around the sun, this planetarium
displays models of a bench, a well, a man with a rucksack,
a (comparatively large) book, a hut, a tree and a bird, all
rotating at different speeds around the tiny model of a water
flea. In addition, the book is rotating around the man as
the bird revolves around the tree. The spectator causes the
figures to rotate by turning a crank connected to the tripod
by a long shaft. All figurative elements derive from the large
Landscapes and are explained there.
here to see more.
Download Quick Time Movie (zip, 25 mgb!)