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Things of interest in Maths & Science

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Disks moving in a square grid trace out an interesting pattern as they pass over a rotating wheel.  Some traces appear to go towards the centre only to be flung back out, in some cases forming a sharp corner. A few of the traces form loops, as if there was also a force acting sideways rather than outwards.  This demonstrates how the Centrifugal and Coriolis ‘forces’ appear to affect the motion of objects in a rotating frame. [making of video (new)] [more] [code] 

Disks moving in a square grid trace out an interesting pattern as they pass over a rotating wheel.  Some traces appear to go towards the centre only to be flung back out, in some cases forming a sharp corner. A few of the traces form loops, as if there was also a force acting sideways rather than outwards.  This demonstrates how the Centrifugal and Coriolis ‘forces appear to affect the motion of objects in a rotating frame. [making of video (new)] [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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