What I saw on the web on 2021.7.12

1. Freewill Shakespeare Summer 2021 Live and On Demand
   by Freewill Shakespeare
   https://www.freewillshakespeare.com/
   do you like Shakespeare? Do you $500 like Shakespeare? Do you and friends $500 like Shakespeare?
   via FB
   
   
2. "the closest social media form to the noncommercialized, interactive, written-communication-centric platforms of my younger days"
   by IPEdmonton
   https://twitter.com/IPEdmonton/status/1414277995506724873
   I want to whisper "DW exists", but this twitterer knows that, leaving me confused
   via https://twitter.com/ipedmonton
   
   
3. The Angle Windmill
   by Flying Colours Maths
   https://www.flyingcoloursmaths.co.uk/the-angle-windmill/
   a nice trigonometric mnemonic
   via rss
   
   
4. Skye’s Oblique Grating
   by Michael Bach
   https://michaelbach.de/ot/ang-SkyeGrating/index.html
   fascinating that "odd reverse" should make so much perceptual difference
   via a memory less ephemeral
   
   
5. Pathologically Polymathic (Blog)
   by Danny Yee
   http://danny.oz.au/blog/
   this looks rather similar to reblogarythm in intent. Does that mean I have to start following it?
   via a memory less ephemeral
   
   
6. Octopuses
   by Last Week Tonight with John Oliver
   https://www.youtube.com/watch?v=aSZ-hogD8mg
   I agree with everything except I still prefer the greek plural "Octopodes"
   via rss
   
   
7. The UK's last aerial ropeway uses no power, moves 300 tonnes a day, and will be gone by 2036.
   by Tom Scott
   https://www.youtube.com/watch?v=6RiYXI1Tfu4
   a fine bit of 1920s tech, still operating
   via rss
   
   
8. Colin McComb's apology for "The Complete Book of Elves"
   by Colin McComb
   https://www.youtube.com/watch?v=wwDWx1cAqP4
   ok?
   via Exposition Break
   
   
9. Numbers which are not the sum of distinct squares.
   by Sloane and Adams
   https://oeis.org/A001422
   there are only 31 numbers in this sequence
   via a little googlery after playing with it for a bit
   
   
10. Why is 'x' the unknown?
    by Terry Moore
    https://www.youtube.com/watch?v=YX_OxBfsvbk
    I quibble with his pronounciation of χ
    via reddit
    
    
11. Why start at x, y, z
    by Christian Lawson-Perfect et al
    https://whystartat.xyz/wiki/Main_Page
    in case you're wondering why we use a particular stupid/confusing mathematical notation
    via reddit
    
    
12. Old Pappus' Book of Mathematical Calligraphy
    by Old Pappus, presumably
    https://loopspace.mathforge.org/CountingOnMyFingers/Calligraphy/
    this should be a fun read
    via previous link