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Unlike with film, most digital cameras don’t record every part of the image at the same time. Often the image is scanned from left to right and top to bottom, which can create some interesting effects when recording moving objects like the blades of a fan. Here we simulate a digital movie of a rotating chess-board. The scan is moving from left to right, catching up with the rotation in the bottom of the image, and moving against it at the top. [inspiration from danielwalsh] [more] [code]

Unlike with film, most digital cameras don’t record every part of the image at the same time. Often the image is scanned from left to right and top to bottom, which can create some interesting effects when recording moving objects like the blades of a fan. Here we simulate a digital movie of a rotating chess-board. The scan is moving from left to right, catching up with the rotation in the bottom of the image, and moving against it at the top. [inspiration from danielwalsh] [more] [code]

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Matt Henderson

I post original stuff about maths, space, computational linguistics and other things that I like. This blog is meant to be accessible and interesting to people of all backgrounds. My undergrad was maths in Cambridge, and I'm now starting research in Speech and Language technology. Email me at If you're new, check out this overview of my posts. All code posted is in Mathematica.

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