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Darius Kazemi

This article about the current decades-long work to recalibrate the notion of "height" in US geological surveys and so forth is fascinating and reminds me so much of like... in a video game engine when you get too far away from the origin and start losing precision in your floating point numbers and suddenly your physics starts to glitch

nytimes.com/2020/05/22/science

Screenshot of article. Text:

"The errors in height are magnified as one moves diagonally across the country from the southeast to the northwest. One of the few areas of the United States expected to either stay the same height or rise fractionally will be the toe of Florida. “There’s really a tilt that shows that all of the accumulated errors in our vertical network are pushed up into the northwest,” Ms. Blackwell said."

There is also a map of the US with a gradient indicating greater errors in measured height as you move from the SE to the NW of the country.
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Soh Kam Yung

@darius This from the article: "Some Coloradans worry that a few of their mountain peaks will fall below a bragging-rights threshold under the new height system" reminds me of this movie starring Hugh Grant.

en.wikipedia.org/wiki/The_Engl

🙂

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