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john-nolton
@john-nolton
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Joined: July 2, 2010 6:08 pm
Topics: 27 / Replies: 536
Topic
7 years ago
Replies: 3
Views: 3
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RE: FLAT EARTH SURVEYOR, seriously?

Well the question above on the video is "DOES THE SUN CHANGE SIZE"Every surveyor should know that the answer is YES ( and NO).If you measure the Su...

7 years ago
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RE: First Use of Prisms

A surveyor in California that I knew was using prism with his Model 4 Geodimeter in 1959, the year he bought it. As we talked about it he said it save...

7 years ago
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RE: What's your antipod?

So first we need your definition of antipode (the correct spelling given by Dave Lindell.)It looks like Dave and you are using the following;"The anti...

8 years ago
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RE: today's EBay find

Nate the surveyor ask, "What's a meter(metre)It the official length for distance in the United States.JOHN NOLTON 🙂

8 years ago
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RE: Dynamic Heights vs. Orthometric Heights Differences

Bill93 (by the way is that your age? , not being funny just wondering) you are talking about short distances and flat land surveying. If you andShawn ...

8 years ago
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RE: Dynamic Heights vs. Orthometric Heights Differences

Shawn Billings said: " I've been thinking of it more in terms of reducing terrestrial slope distance to horizontal"You might want to look at Survey Re...

8 years ago
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RE: Vertical Control

Above in GeeOddMike post (note: when i looked at post by this person I always thought it was " Gee Old Mike" till I put on my close- up glasses) the n...

8 years ago
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RE: Leveling 20'x400' concrete forms

Once you watch the video you get some idea of what you want. You want the pour to be continuous. If the depth of pour is one foot you are looking at n...

8 years ago
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RE: Alternate solution to "Inside The Box"

tomarneson, Thanks for the information above about jsoftware and the link to it. Again it is a very nice solution you have.JOHN NOLTON

8 years ago
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RE: Leveling 20'x400' concrete forms

What is the tolerance for the total length of the job? That is what I would like to know.400 feet (121.9 + meters) + or - what?JOHN NOLTON

8 years ago
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RE: Alternate solution to "Inside The Box"

Very Nice; BUT1. there is always the problem of just how many digits to carry with a solution like yours (I myself use 10).2. Dave has never said that...

8 years ago
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RE: Leveling 20'x400' concrete forms

Just what do you call FLAT ? Give a realistic value; like + or - 1mm or something in the 400 feet.JOHN NOLTON

8 years ago
Topic
Replies: 2
Views: 3
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RE: Atmospheric corrections

In my above post I had to sign off because I was having a shipping container delivered. I will finish up what I would have put in the above post.On pa...

8 years ago
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RE: Atmospheric corrections

In John Hamilton post above the equation on the right side is OK but what is pressfact?? (what do you mean John Hamilton)This equation is found on pag...

8 years ago
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RE: Atmospheric corrections

The above post by Larry Scott is correct but one thing must be added.You cannot be that far from the weather station to convert back from sea level to...

8 years ago
Topic
Replies: 2
Views: 7
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RE: Geographical Centers

MathTeacher go into my bio here at rpls and send me a note to my po box and I will send you a copy ASAP.JOHN NOLTON

8 years ago
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RE: Geographical Centers

MathTeacher said in above post "Dr. Adams was once a math teacher, so we know that he's always right".MathTeacher you are absolutely positively corre...

8 years ago
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