sketchpad : compose
Want animation, but worry about the drawbacks of Adobe Flash®? IE lack of support on some operating systems, cost of the development environment? Then maybe processing.js is for you!
Want to try it out? Sketchpad is for you. Just modify the code in the left window, press CTL-R, and the resulting animation runs to the right. Easy as custard pie.
Ask Ken--I asked about Baron "von Steuben", then "quark".