What I saw on the web on 2020.9.19

1. I beat Minecraft as a Fish. It was insanely hard.
   by kayZeee
   https://www.youtube.com/watch?v=ZGpBd_Koplg
   apparently fish also minecraft
   via boing
   
   
2. Hitler's Grave
   by Pixelated Boat et al
   https://garlic-slut.tumblr.com/post/184417998144/withywindlesdaughter-imagesofperfection
   how to commemorate history
   via wil
   
   
3. People of Middle-earth
   by Megan N. Fontenot
   https://www.tor.com/tag/people-of-middle-earth/
   came across this biweekly series a while back
   via memory
   
   
4. The Dehn Invariant
   by Numberphile
   https://www.youtube.com/watch?v=eYfpSAxGakI
   The equidecomposibility question for polyhedra
   via memory
   
   
5. Perfect Shapes in Higher Dimensions
   by Numberphile
   https://www.youtube.com/watch?v=2s4TqVAbfz4
   Introducing, among other things, my favourite polychoron: the 24-cell
   via previous link
   
   
6. Unusual Instruments: Concrete guitar
   by Billings Gazette
   https://www.youtube.com/watch?v=-azkQAlwRdI
   it sounds pretty good!
   via reddit