Alien Prometheus - they have a lidar drone mapping the tunnels. Does that count?

The Lost City of Z Charlie Hunnam played Percy Fawcett, chief surveyor or some similar position?ÿ

If I understand GPS post-processing concepts, you can only get the same coordinates if you observed the same number of satellites? The deviation in RM...

What I don't get is, with all the latest GPS, Lidar, robotic TS, we still can't finish the fieldwork within the estimated man-days quoted.

Yet knowing how way leads on to way, I doubted if I should ever come back. ?ÿ ?ÿ

@williwaw but then those spherical coordinates then are converted to plane coordinates before you can do anything with it.

Most of my surveys are done with the assumption that the earth is flat. All computations are done using plane trigonometry instead of spherical trigon...

If you plan to compute the vertical leg using the 24" lid diameter and slope distance you can get?ÿ some error from the fact that the invert is not au...

Tell him DON'T.?ÿ

Your required accuracy of 10cm means that some points on the road surface would not be smooth? Or can you smooth it out through software? The RTK Z a...

?ÿ what's hysteresis?

Why would Sipe give something to Sumner that was named to both of them? Also shouldn't the compass have been given from WK to Sipe? Sorry, I see a l...

The end user of your CAD file may find himself wasting several hours wondering why the CAD length doesn't equal the labeled length.?ÿ

wow, a GTS-1! someone would surely get that for his collection. looks like it was well taken care of. i am always on the look out for cheap obsolete s...