surveyorandrew
surveyorandrew t1_iwrq2yu wrote
Reply to comment by Industrial_Jedi in Researchers have developed an alternative positioning system that is more robust and accurate than GPS, especially in urban settings. The working prototype that demonstrated this new mobile network infrastructure achieved an accuracy of 10 centimeters. by the_phet
We can do survey-grade observations while in motion using RTK, the only caveat is you have to maintain satellite lock otherwise you have to re-initialize. The systems are sophisticated enough now that it isn’t much work to setup. Some of my favorite projects I’ve done involved mounting a RTK GPS to an ATV/quad and driving back and forth across a 400-acre farm for a topo survey, with the GPS automatically taking shots every 20 feet. I’d say the more efficient way to do it nowadays would be with drone photogrammetry.
surveyorandrew t1_iwpw8nt wrote
Reply to Surfside, Washington by Eaton_snatch
‘American on vacation’, 2022, colorized.
surveyorandrew t1_j29cli0 wrote
Reply to Fencing or swordsmanship during the during the American revolution by Unable-Anybody-2285
Fencing in Colonial America and the Early Republic: 1620 – 1800 by Ben Miller: https://ahfi.org/wp-content/uploads/library/estafilade_fencing-in-america.pdf
A Bibliography of American Swordsmanship 1734 – 1943: https://academyofdefence.com/bibliography/