What I saw on the web on 2020.9.5

1. Why is there no equation for the perimeter of an ellipse‽
   by Stand-up Maths
   https://www.youtube.com/watch?v=5nW3nJhBHL0
   the joy of avoiding elliptic integrals
   via rss
   
   
2. a logic diagram
   by Benjamin Philippe
   https://imgur.com/ZkTJK5z
   the solution for the last task in session 4 of the incredible proof machine
   via comments on a video where someone else tried to solve it
   
   
3. We’ve been called worse.
   by slklassen
   https://slklassen.com/2020/09/05/weve-been-called-worse/
   on the way mennonites have reacted to other people calling them names.
   with a cocktail recipe
   via rss
   
   
4. Ukrainian schoolgirl talks about purpose of life
   by Argen S.
   https://www.youtube.com/watch?v=nIXybGpuLbU
   existentialism starts young in Eastern Europe!
   via TYWKIWDBI
   

not much today, to balance off yesterday's long one?