matthen

Things of interest in Maths & Science

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Walking down a corridor, it’s interesting to see how your image of what’s in front of you shifts with your steps.  Mathematically, your eye is forming a projection of the 3D world onto the 2D retina, and as it moves slightly closer to the walls and the ceiling/floor as you walk, the perspective changes.  This is one example of creating a lower dimensional representation of a higher dimensional reality, another example would be projections of the globe. [more] [code]

Walking down a corridor, it’s interesting to see how your image of what’s in front of you shifts with your steps.  Mathematically, your eye is forming a projection of the 3D world onto the 2D retina, and as it moves slightly closer to the walls and the ceiling/floor as you walk, the perspective changes.  This is one example of creating a lower dimensional representation of a higher dimensional reality, another example would be projections of the globe. [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.

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