It is a test from a discussion about scientific visualization, an archive with original example may be found here and also described in a tutorial. Inspect model.
Schrödinger's Cat (with alternative setup aka Sally's cat)
Saucer for milk
Stream of milk
Milk in saucer
Bulb for milk
Milk in bulb
Motor to manage valve
Valve to open bulb
Holder to fix bulb
Connector to keep holder and control motor
Quantum device to produce signal for feeding the cat
Box to hide the cat from observer