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Things of interest in Maths & Science

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This animation of falling sand was created by defining 16 simple rules [shown below] about how the sand ought to behave in 2×2 grids. Breaking up the problem makes it easy to simulate the complicated patterns of falling sand.  Systems which define rules on a grid like this are called cellular automata. Other famous examples include Conway’s Game of Life.

[more] [code]

This animation of falling sand was created by defining 16 simple rules [shown below] about how the sand ought to behave in 2×2 grids. Breaking up the problem makes it easy to simulate the complicated patterns of falling sand.  Systems which define rules on a grid like this are called cellular automata. Other famous examples include Conway’s Game of Life.

The rules used to make this

[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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