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Things of interest in Maths & Science

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When rays of light bunch together, the image they form is called a caustic. This animation shows the caustics created by the surface of wavey water due to the refraction of light as it enters the water. The appearance of rainbows can be derived by considering the bunching up of light rays entering into a droplet of water and reflecting back out [i.e. rainbows are caustics]. [code] [more]

When rays of light bunch together, the image they form is called a caustic. This animation shows the caustics created by the surface of wavey water due to the refraction of light as it enters the water. The appearance of rainbows can be derived by considering the bunching up of light rays entering into a droplet of water and reflecting back out [i.e. rainbows are caustics]. [code] [more]

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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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