https://www.usuallypragmatic.com
I'm a physicist who's landed in the tech industry, so it's full of all sorts of miscellanea.
Here's a few good places to start:
https://www.usuallypragmatic.com/misc/Logarithmic-Birthdays....
https://www.usuallypragmatic.com/projects/Generating-Color-T...
https://www.usuallypragmatic.com/blog/2020-08-10-How-do-you-...
https://www.usuallypragmatic.com/projects/How-do-you-learn-(...