A list of Free Software network services and web applications which can be hosted on your own servers - awesome-selfhosted/awesome-selfhosted

Geotastic is a free to play multiplayer focused geo quiz app that can be played with friends simultaneously. A free alternative to geoguessr.

python, php, bash

"about how all intelligent species would be more alike rather than different, so if you're into anthropological stuff or even the evolution of species in general, then you might like this book"

Update 2024-01: got this gifted :)

see also https://samiramly.com/chess

french project for open source "real-time kinematic positioning" (RTK positioning)

Costs about 400 euros for the base station (called base) and mobile part (called rover), each.

Keywords: gps, subcentimeter, centimetre, centimeter, accuracy, accurate, precision, precise, coverage network, urban corridor

Interactive article explaining how sound works.

Keywords: blog post scroll example air pressure movement distance wave

Interactive article explaining how GPS works.

http://chrisparente.com/wp-content/uploads/2013/06/NSA-Humor-FaceBook-Changes-Privacy-Features.jpg

Ig nobel prize worthy

Firmware flash Samsung SSD or NVMe directly from Linux without needing broken Samsung ISO boot environment!

Direct link to spreadsheet: https://docs.google.com/spreadsheets/d/1jXtRCoEnnFNWj6_oFlVWflsf-b0jkfZpyhN-BXsv7uo

See current/recent electricity mix including CO2-intensity, and current/upcoming prices. Covers a heck of a lot of countries

Keywords: Lunar online web browser html5 game

Current and upcoming CO2-intensity of electricity per city in Germany

Not sure if that's an interpolated guess or actually very certain, but it'll be better than nothing

conlang