What I saw on the web on 2022.12.19

1. Once a Millennium Alignment of All Three Norths
   by Matt Parker
   https://www.youtube.com/watch?v=HcFvegnQpPo
   all hail north by north north
   via rss
   
   
2. "Sweet Dreams": original song in Major key
   by Eurythmics, with help from Oleg Berg
   https://www.youtube.com/watch?v=f0zfD3nfG4w
   from the presumed soundtrack of the uncanny valley?
   via googlery
   
   
3. The derivative isn't what you think it is.
   by Aleph 0
   https://www.youtube.com/watch?v=2ptFnIj71SM
   a possibly-gentle introduction to homology and cohomology?
   via reddit