[mavci]

As someone who learned about GPS and was impressed by its structure, I used to tell my friends around me, whenever I had the opportunity, how great GPS was.

Now I saw this article and I got goosebumps, well done, thank you very much! It's really fantastic. From today it will be enough for me to just share this article with my friends, or I will tell along with this article.

[pauldavis]

What a debt your friends have to OP! :)