Tweet Archive 2018 04
Replying to @roice713
Reminds me of the hexasphere: http://pub.ist.ac.at/~edels/hexasphere/
Thread for mathematical furniture.
1/ Steiner tree table. Maximises stability within the footprint of a square tabletop while minimising the amount of material needed (because why not).
Image source: https://people.eng.unimelb.edu.au/brazil/research.html
Rhombic triacontahedra are super cheap on Amazon due to laser cutting - search for ‘IQ lamp’.
Chess in the Multiverse.
This is 36,000 games of chess, all played at once, with the probability of each move shown as opacity.
This animation has been burning in my head ever since reading Anathem.
https://www.youtube.com/watch?v=dwWGjI_Mdl4
RT @DMiliband: Brexit would be important for Britain at any time. But this is not just any time. In the era of Trump and Russian aggression…
RT @diego_pliebana: The application window for this position closes on 18th April: http://www.jobs.ac.uk/job/BIV588/software-developer/ Please consider applying or shar…
If man performs evil acts, charge him — leaders included (7)
Great clue in today’s cryptic crossword.
https://www.theguardian.com/crosswords/cryptic/27485#3-down
Replying to @tim_hutton
If you’re not into cryptic crosswords or need a hint: the clue is almost isomorphic to the self-referential acronym here: https://www.xkcd.com/917/
Zomes are fun. The name comes from ‘zonohedron’ + ‘dome’.
I’ve made an interactive tool for playing with their parameters. https://github.com/timhutton/zomes
https://en.wikipedia.org/wiki/Zonohedron https://simplydifferently.org/Zome
Replying to @tim_hutton
The beauty is that the shape of the dome comes completely from the properties of rhombi - only the bottom row of triangles is chosen by the user.
Girl Guides have their own version of the Poincaré disk model, where the {4,4} tiling approaches infinity in the center of the disk? Or is this a circle inversion applied to the {4,4} tiling? What’s going on here?
(Whatever it is, nice work 10th Ipswich Guides!)
The strange paths of turmite LLRR. Random walks that return to the origin every time and SOMEHOW manage to grow a smooth shape that’s almost a cardioid but not quite. @JimPropp
https://en.wikipedia.org/wiki/Langton%27s_ant