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The visual effects in Harry Potter and Sweeney Todd

A favourite from the archive...
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...about what makes life interesting and why old-fashioned maths is what you need for physics.

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June 2009
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Physics engine

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In the real world, balls bounce and water splashes because of the laws of physics. In computer games, a physics engine ensures the virtual world behaves realistically. Mathematician and computer programmer Nick Gray tells us about playing God in a virtual world.

Tags: Physics engine : computer gaming : computer animation : computer graphics