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Toys
Sometimes I write little Javascript pages just to keep myself amused; sometimes they are for some specific purpose and sometimes they are just extensions of some idea I've had. Either way, here are some of them. I make no claim to multiple browser compatibility. Hell, Half of these barely work in a single browser! If you find something which doesn't work then just remember that you're probably not missing anything special.





his toy sprang from a conversation (argument?) I had a few years ago about rollercoasters and how they accelerate and decelerate over hills and through dips. Ever since then I've wanted to create this little toy to illustrate the point. The force calculations are far from perfect, but it's kind of fun anyway.
Drag the points around to create a track. The coaster will move around. You can modify a few properties:
Friction: Gravity: Or view presets or



















All content on this website (including images, writing, javascript and any other original works,) unless otherwise noted, is licensed under a Creative Commons License and is copyrighted © 1995-2009 by me, M.G.Spencer. If you have questions or feedback related to anything on this website then please Contact Me.