What I saw on the web on 2020.9.12

1. Why Masks Work BETTER Than You'd Think
   by MinutePhysics
   https://www.youtube.com/watch?v=Y47t9qLc9I4
   the math checks out
   via siderea
   
   
2. Dhrupad Porn
   by Rajan Parrikar
   https://www.parrikar.org/nibbles/2020/09/12/dhrupad-porn/
   sri Parrikar has a sharp tongue, and sometimes it points in a legit direction
   via rss
   
   
3. The Multiplicative Power of Masks
   by Aatish Bhatia and Minute Physics
   https://aatishb.com/maskmath/
   allowing you to do some simulations of the effectiveness of masks under different scenarios
   via first link
   
   
4. Your Professional Decline Is Coming (Much) Sooner Than You Think
   by Arthur C. Brooks
   https://www.theatlantic.com/magazine/archive/2019/07/work-peak-professional-decline/590650/
   some reflections on preparing for one's declining years
   via TYWKIWDBI
   
   
5. Guitar Teacher REACTS: KING CRIMSON "Starless" LIVE | Takamatsu, Japan 2015
   by Michael Palmisano
   https://www.youtube.com/watch?v=fU9LGRmCwPg&feature=youtu.be
   it takes him a while to ralize Fripp's NST
   via reddit
   
   
6. HuLuSi, professional, HiQ - Nadishana 葫蘆絲
   by Nadishana
   https://www.youtube.com/watch?v=OJApHaTvHZ0
   a demonstration of a good-quality hulusi
   via reddit