Comment GPS Sat antenna (Score 1) 221
Some of those antennas also serve to detect nuclear explosions around the globe. For monitoring other countries' tests and as a warning system. Here's a pretty informative overview on the history of GPS (in pdf).
Man, I dig gps. Used LORAN quite a bit growing up fishing. Useful, but not nearly as easy or informative. Cool.
J
Man, I dig gps. Used LORAN quite a bit growing up fishing. Useful, but not nearly as easy or informative. Cool.
J
