Useful stuff

In my web browsing I often accumulate useful websites in my tabs, which I list here in an effort to close tabs and browser windows. Mostly for my own reference, but perhaps you can find something useful too.

Useful useful stuff

Hard-to-find papers

Physics, Math, Stuff

Notes

Mechanics

Equipment, Electronics

Science of science?

Reseach process/workflow

Typesetting and figures and things

Software

Food

???

Distributed random number generation

How do you select a random number (or, random seed) in a distributed, deterministic, publicly-verifiable way? In a group of N unknown parties, it should be possible for 1 "trustworthy" participant to help choose the random seed such that N-1 colluding parties cannot unduly bias the result. Here are a few links on this topic:

Star charts, map projections