Somehow GPS works differently, don’t?

I got stuck in a traffic jam theese days, and right in front of my eyes I say this beatiful peace of art on the back of a truck.

“Truck controlled by G.P.S”

Well, I did not know that G.P.S. is controlling anything, but obviously I was mistaken. The truck in front of me was G.P.S. controlled! Incredible. And I find the idea of tower shaped satellites high above our heads very interesting. As a matter of fact, who really knows how they look like?

:-)