Phun with Physics: say goodbye to sleepy afternoons

I should really save this for a Friday afternoon, but you all need a midweek pick-me-up, right? Phun is definitely that. A brilliantly inventive program created as an MSc project by Emil Ernerfeldt for Umeå University, Sweden, it's a "2D physics sandbox". But don't just take my word for it's cleverness; check out the video below to see what you can do. Three cheers for innovative software for children. Adults on lunch break can download it for free here.

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