Idea Clojure GUI Demo. Beauty of the mathematics of a sinkhole - captured in a Clojure GUI
Here he described how to develop in Clojure a discrete-time dynamic system called An Ikeda map.
Rich Hickey then submitted his improvements to the code. This demo is Rich Hickey's version.
You can read about this project here: http://juliangamble.com/blog/2012/03/04/clojure-gui-demo-of-ikeda-map-sinkhole/