Error Correction Zoo: some set of smart people created the Error Correction Zoo to categorize and to organize known classical and quantum error-correction schemes. It’s always nice to remember that error correction is what allows you to call your friend over whatsapp and get a nice, clean audio.
Calendario Meteoro Fenológico (in Spanish. Change manually the year in the (...)cm-XXXX.pdf part of the address to visit other years. The first publication is from 1943, and as of 2025 they seem to be up to date.)