Video Of Escher's Impossible Waterfall A La Rube Goldberg

Here’s a neat optical illusion of Escher’s impossible waterfall running in a sort of Rube Goldberg setup. It comes by way of YouTube user mcwolles.

[youtube http://www.youtube.com/watch?v=0v2xnl6LwJE&w=640&h=390]

[via make]