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john-nolton
@john-nolton
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Joined: July 2, 2010 6:08 pm
Topics: 27 / Replies: 536
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RE: World of Engineering Quiz: Twitter

Distance between the 2 poles= zero.zero meters

4 years ago
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Replies: 9
Views: 7
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Replies: 0
Views: 2
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RE: Strange divisions/ graduation of steel tape, about 14.8 per major division

@bill93?ÿ There is nothing wrong with Mr Lindell's statement... It is correct.?ÿ Its close to 1/2 of a?ÿarshin ;?ÿBut we still don't know what it is....

4 years ago
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RE: Strange divisions/ graduation of steel tape, about 14.8 per major division

@bill93?ÿ?ÿyou said "And a steel tape kept on a reel isn't going to hang straight for dipping" Well I guess you never heard of a plumb bob? Go to eba...

4 years ago
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RE: Calculation of geographical coordinates of the destination

@mathteacher?ÿ ?ÿMT?ÿ I also have Ballou and Steen book. Had to go down to my library to double check. I have also learned the?ÿ hard way about lendi...

4 years ago
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RE: Calculation of geographical coordinates of the destination

@mathteacher?ÿ I have many book on Spherical Trigonometry but the first one I used in H.S. (1959 or 1960) was Plane and Spherical Trigonometry by Kel...

4 years ago
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RE: Calculation of geographical coordinates of the destination

@geeoddmike?ÿ I would like to point out that Vincenty's?ÿ method of the Direct and Inverse solution for the Geodetic distance and Azimuth came from R...

4 years ago
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RE: USNO

Larry Scott;?ÿ What type of data were you getting from the USNO (be specific ). Thanks and?ÿHappy Thanksgiving. ?ÿ John Nolton

4 years ago
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RE: Best Procedure for Surveying UAS Targets for High Accuracy

andrewm;?ÿI have one more question which I left out of my above post. It looks like this park is near level (with the track and base-ball fields. I a...

4 years ago
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RE: Best Procedure for Surveying UAS Targets for High Accuracy

andream; as you say your equipment is no good enough for the task. At least a 1 second inst. with a +/- 1mm edm might be what you need. Do you have s...

4 years ago
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RE: Wild / Leica T2002 notes

@ekloost?ÿ Eric my notes are how to adjust the instruments constants. The manual is wrong in some places on how to do this. There is at least one per...

4 years ago
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RE: How can people measure so terribly

holy cow,?ÿ What year was this done?

4 years ago
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RE: Significant Figures

@geeoddmike?ÿ I think there is a lot more to the problem than NGS giving geodetic coordinates to 0.00001 places and?ÿ transforming them to X,Y,Z coor...

4 years ago
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RE: Significant Figures

@mathteacher?ÿ MT, most people (almost all) just enter the numbers NGS gives and use what the computer spits out and never worry(or think) about thin...

4 years ago
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RE: Significant Figures

@bill93?ÿ It looks like you don't read very well also. Your equation of [100 cos(Lat.)] = long. distance is very crude. As I have pointed out if you ...

4 years ago
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RE: Significant Figures

e^2 is the square of the 1st eccentricity of the ellipsoid and for GRS80 = 0.0066943800229034157495749485862893 + round where you like. ?ÿ JOHN NOL...

4 years ago
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RE: Significant Figures

@bill93 Sorry Bill93 but your equation of?ÿ 100 x cos (lat) for long. is NOT CORRECT. Use 101.45 and even better would be?ÿ 101.57?ÿ The 101.57 woul...

4 years ago
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RE: Significant Figures

@mightymoe The distance along a meridian does change as the Latitude increases from the equator to the pole. This can be found in most basic geodesy...

4 years ago
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RE: mudflat digital leveling

@mike-marks I have used Trig levels with great success and had my own procedures(1963)well before others did (NGS etc.) 6 years ago (2014) NGS came ...

4 years ago
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