Find?ÿ the grid/ground factor for the approximate lat/lon and elev from some source and see if your observed values are in the ballpark using that fac...

For my GPSonBM sessions I measured 3 places around the ground plane, using the Trimble pole, at the start and at the end of he session, and was disapp...

He may have seen it as inevitable, but he was going to slow it down at all costs and died fighting on the British side in the war of 1812.

I think I've been told that a train has one engine, perhaps consisting of multiple locomotive units. There are two reasons for distributing the locom...

You are right that remeasuring some vectors/ angles/distances/?ÿ coordinates too many times relative to the other measurements in the network will mak...

Least squares programs give better and true statistics with more redundant input, so long as the measurements have independent errors (or you figure o...

A trivial baseline is one that is completely determined by the others you are using and therefore adds no new information. In the simplest case, if y...

4% assumes 30-year payout and historically average returns on funds. If you keep to safer investments, see a bad economic period, or live longer it ri...

How good is the medical care in Peru?

The problem with the wrench is the diameter of hole you have to dig when you find a rebar a foot down and would like to raise it to, say, 2 inches (5 ...

Of course it depends on whether you live in Los Angeles, Orlando, OKC, or Caddo Gap. That's why I would start with your spending history.

For starters, add up your checkbook and/or credit card payments, plus pocket cash if it is significant.?ÿ Average the last 2 or 3 years.?ÿ Adjust down...

I started quite a few years ago with a brass transit, and then a GTS-2B (6-second instrument) and worked off and on to build a network using local rad...

Corrected link for the old tree description

Just be careful about interpreting the results. Depending on where you are, you may find the intersection stations don't match GNSS results. I'm ~40 ...

There is no scaling associated with choice of datums. It's just an offset from one to the other at the precision of ordinary work in a modest area. I...