Python Numbers Every Programmer Should Know Link:
Michael Kennedy's Thoughts on Technology
Python Numbers Every Programmer Should Know
A cheat sheet of real-world timing and memory numbers to guide performance-sensitive decisions.
 Discussion:
Python numbers every programmer should know | Hacker News
Cameras and Lenses (2020) Link:
Cameras and Lenses – Bartosz Ciechanowski
Interactive article explaining how cameras and lenses work.
 Discussion:
Cameras and Lenses (2020) | Hacker News