GPS

I'm so much impressed by the fact that all these graphics are in fact interactive animations created/written by Bartosz himself. Well done.

Another excelent post with very detailed explanation and step by step information for GPS. Check out also the other posts by Bartosz.

There's a lot of really great info in here. One random things I learned from this:

> As that angle increases, the signal from a satellite travels more sideways and its larger portion gets affected by the atmosphere. To account for this, GPS receivers ignore ranges measured from satellites at very low elevation angles. ... atmospheric effects are primary source of GPS inaccuracies.

(I know GPS has inaccuracies, but I didn't really know what caused them, but if I had to guess, the atmosphere wouldn't have been on my list of guesses for the top causes)

Wonderful write up, as always from Bartosz!

Here are some fun GPS projects I've found in the past, maybe others can add to this list.

GPS/Galileo/Beidou/Glonass status and error monitoring, open-source community-ran project: https://galmon.eu/

DIY GPS receiver using minimal signal frontend, FPGA Forth CPU for real-time processing and RPi running position solvers: http://www.aholme.co.uk/GPS/Main.htm

For every handful of crappy sites people use as examples for why the modern web sucks, we get fantastic sites like this one.

There's amazing stuff out there, you just have to spend time looking around!