The Laughing Squid is a font of linkjoy, like this stylized, but functional illustration of a cow’s digestive processes.
Cow from Nova Jiang on Vimeo.
Nova Jiang’s sculpture, Cow, is not, however, a “Rube Goldberg-style” machine, as described in the Laughing Squid piece:
“Cow” is an interactive wooden sculpture that demonstrates the complicated digestive system of a cow with a complicated Rube Goldberg-style mechanism. – EDW Lynch
Rube Goldberg-style machines are unnecessarily complicated. The game Mousetrap involves the construction of a Rube Goldberg-style machine. The “This Too Shall Pass” video from OK Go we featured as our Song of the Week shows the operation of a Rube Goldberg-style machine.
This machine is not unnecessarily complicated. It is necessarily complicated, because digestion in cows is complicated.
The Finch and Pea 
MOOOOOOOOOO!
That was awesome. Congratulations to the builders.