I Saw Flashes, You Saw the Pan

Courtesy of Dmitri: Can you put the moon in orbit? A neat little demonstration of SVG and Javascript.  However, it only works in Firefox 1.5 at the moment, as the page makes use of several Mozilla-only extensions to CSS.  (-moz-column-width and -moz-column-gap, to be precise).  (There's also the issue of the SVG, as I seem to recall hearing that Mozilla has implemented a different part of the spec than Opera has.  I have no idea what (if anything) other browsers have implemented.)

Unfortunately, the author of the page had to ruin it all by putting an Intelligent Design/Creationism spin to it, based off of an interpretation of Newtonian physics and the various theories of moon formation that can be called, at best, simplistic.

Don't put very large values into the launch force box though, as it will cause Firefox to lock up.