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larry-scott
@larry-scott
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Noble Member
Joined: May 28, 2014
Topics: 59 / Replies: 990
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Replies: 2
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RE: 3 wire

@beuckie yeah digital in production has pluses in workflow and speed. Just hate seeing newbie instrument guys working it without understanding more...

1 year ago
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RE: 3 wire

@beuckie That was a long time ago. I wouldn’t be using that today for sure. although today in my retirement phase I do shlep a T3 T2 N2 and HP3805 ...

1 year ago
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RE: 3 wire

@party-chef Maybe I was lucky. I had a couple of party chief/company owners that were more than a boss. They were well studied practitioners in the s...

1 year ago
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RE: 3 wire

@dan-steely ‘add the wires’ !! I always wondered what the benefit of 1/100 yard pattern. I thought it was just to have a pattern that is still dis...

1 year ago
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RE: Pavement Creep, and PK nail moving

Now you know why a CBL has to be remeasured periodically. I set a 100 baseline with my invar base tape. In asphalt paved shoulder. Not fresh AC, but ...

1 year ago
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RE: Theodolites of 1890

@geeoddmike Pgs 36-46, section C. The abstract of directions. skim that. It’s a handful.

2 years ago
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RE: Theodolites of 1890

@geeoddmike obvious point: observer recites the reading and the booker records it. Target reading minus initial reading. Yeah that’s a bit …. My qu...

2 years ago
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RE: Theodolites of 1890

@james-vianna looking at the symmetry of the microscopes they appear to be 120° apart.

2 years ago
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RE: Theodolites of 1890

@james-vianna That appears to have 3 microscopes. However there are instruments of differing designs. The 1900 report clearly stated 3, and the USC...

2 years ago
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RE: Theodolites of 1890

@james-vianna The documentation of the 39th parallel and photograph of the instruments used clearly describe and show 3 microscopes. and that Direc...

2 years ago
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RE: Theodolites of 1890

@not-my-real-name I believe the scope is lifted out of the alidade. But that’s part of my question.

2 years ago
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Replies: 0
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Replies: 11
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2 years ago
Replies: 0
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