On Apr 4, 8:28 am, "asadi" wrote:
I'm gonna start looking up things about them..

I'm looking mainly to find my way back where I started, and keep track of
where I find mushrooms...

john

I have a Garmin Etrex. I have been able to find electrical vaults
that were burried. I could track them to the point of standing on the
lid. ( the lid was covered with dirt).
I have found Geocaches the same way. We were standing on the things.
I have used to measure lengths for cables, it was more accurate than a
wheel.
I don't really know why the military needs accuracy to 64 bits, the
commercial ones are good enough to place a 2000 lb bomb.
You can also use it to find your car in a parking lot. If you put in
your car it will give you speed and direction more accurately than
your speedometer.
If your fishing in a lake you don't have to paint that "X" on the
side of the boat any more.