@holy-cow My dad was very capable and understood much intuitively, but he was not tutorial. I learned by following him in tasks and seeing how he di...

The datum identification should be included in the marginalia. I'd offer this attempt at explanation: You have to define a coordinate system and sta...

Wikipedia: The International Textbook Company (I.T.C.) was founded in 1895 by publisher Thomas J. Foster in Scranton, Pennsylvania.[1] I.T.C. publish...

Is it happening at various times on various days? (Not 4 pm PST = 0000 Z?)

Yeah, everybody is giving me the numbers, like the sample answer. I filled in the diagram after seeing that it was fill. No problem. The numbers are e...

Many years ago (1980's) I saw an HP 38xx instrument in a store that seemed to be selling excess inventory and insurance salvage items. I played with ...

I'll take a slow-cooked well-done roast over any steak you can offer.

Here's what Bud Uzes says at a site: Davies, Charles, Elements of Surveying, (New York, 1830), 147 pages of text plus 153 pages of tables and 9 fol...

So far I haven't found the exact book, but here's one from 1898 with similar spine marking also derived from Davies by another editor/author, and its ...

I'd guess before 1900, based on the original date on the preface of 1851, the style of transit, and the handwritten sketch dated 1896.

Would you care to expand upon that statement?

It's interesting how many are on the map who are not frequent posters.

If you get a lot more US people on the map, it might be good to reduce the plumb bob size (to half?). I see a member name showing up on the map which...

monumented by a mark on a sewer manhole lid Nothing keeps the lid from being replaced in a different rotation does it?

One of the most popular is Wolf and Ghilani. Editions come out every few years, usually with modest changes, so one or two editions back is nearly as ...

The poster's profile indicates Washington. For many issues the state or even city will affect the responses. In general once a boundary is marked and...

The subject reminds me of Jobo (Joe) Glidden, who was related to a guy who patented one of the most used patterns for barbed wire.