oliver knill
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Reverse engineering the computer screen shown in this recent SNL episode with Musk: t.co/ncUUwPkbjT Left Window: sudo apt install tmux Right Window: top t.co/5sf568H65S
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A sphere is a manifold with the property that if is punctured, it can contract. This was demonstrated with my stinger bee drone (part of a memo on homotopy manifolds: t.co/qeHfWWyqRt). Homotopy spheres can have more symmetry than triangulated spheres and appear naturally. t.co/eIMLyceAnp
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10 hot topics in CS: t.co/B4aUSuv8HH assisted by AI bots. By the way, could not yet solve the problem of have two bots talk to each other automatically. Stuff like: "Hey Siri, repeat what I said" or "Alexa, say 1000 times "Hey Siri, Hi?" or "Hey Siri, who is Alexa" fails t.co/wMORhoGpA3
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2 lines Povray, no libs for a movie #declare c=clock; camera{location <-0.55,0.55,(1-c)/(1/5+c)> look_at <-0.55,0.55,-5> right <0,16/9,0> up <0,0,1>} plane{z,0 pigment{mandel 200 color_map{[0 rgb 0][(1-c)/6 rgb <1,c,1-c>][(1-c)/(3+3*c) rgb <1,c,0>][1 rgb 0]}} finish{ambient 1}} t.co/a39VudGD3g
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Even after 40 years, since they were in fashion, fractals are still very exciting objects. We covered 10 in 8 minutes in a preparation lecture: t.co/CZCkaOwEKV We cover the Cantor-Smith, Sierpinski, Menger, Weierstrass, Lorenz, DLA, Barnsley, Mandelbrot, Mandelbulb sets. t.co/rEmKYCETtR
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10 beautiful objects in topology: t.co/9Y6T5X1mU5 Also a technology demo, with old (clay) and new (multiple cameras recordings and graphics). Algebra: most versatile, Calculus: most useful, Logic: most astounding, Probability: most surprising, Topology: most beautiful! t.co/DINi3PaBnF
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Olli and Ruti today on Snap camera. t.co/fsZJQl6MOK via @YouTube
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From all of mathematics, probability theory probably has the most interesting stories. Here is a collection of 10 short stories told yesterday in 22 minutes: t.co/AQRntuZGFg This is preparation for the upcoming probability lecture in Math E 320: t.co/kSl1bRLj69 . t.co/Ztn1puZRD2
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The website t.co/b3x8DaZTDE was built 23 years ago and still runs reliably with the same engine (written by myself in perl and bash from scratch). Good things last long! 4184 articles about rhetorics, communication, politics etc. The icon poster below illustrates this. t.co/OT2FhVuxkH
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Happy piday! Here is how the Sumerian or Babylonian mathematicians would have written pi. to 8 digits accuracy: pi=3. 8 29 44 The for Mathematicians probably most exciting Clay tablet YBC 7289 contains the square root or 2 to this accuracy. They appear to have missed Pi. t.co/hwTkN4xTen
