Phun is without question the greatest computer toy in the history of the universe, if this had been around when I was a kid I would be a frickin genius by now. You don’t need things any more. It’s extremely easy to use. As a starter tip, turn gravity off when you’re attaching stuff to the background (right click after selecting “affix” tool).
Very cool. Get your Phun (2D physics software) for free. Phun is a Master of Science Theises by Computing Science student Emil Ernerfeldt.
Some other very cool stuff: Cool Mechanical Simulation System – Scratch from MIT – What Kids can Learn – Lego Autopilot First Flight – Awesome Cat Cam

Yeah – I have Phun on my PC – god, it’s great 🙂 And the most amazing thing is that it’s so powerful for such a small program. Awesome!
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