# Accurately measuring level over long distances?

**URL:** https://boards.straightdope.com/t/accurately-measuring-level-over-long-distances/994555
**Category:** Factual Questions
**Created:** [December 13, 2023, 3:07pm UTC](https://boards.straightdope.com/t/accurately-measuring-level-over-long-distances/994555 "2023-12-13T15:07:26Z")
**Posts on this page:** 1
**Showing post:** 7

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### Author: ![Cervaise](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cervaise/32/16693_2.png) [@Cervaise](https://boards.straightdope.com/u/Cervaise)
#### Post date: [December 13, 2023, 6:35pm UTC](https://boards.straightdope.com/t/accurately-measuring-level-over-long-distances/994555/7 "2023-12-13T18:35:54Z")

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> [@Chronos](#):
>
> Oh, and you also want to make sure you know what you actually want.

Indeed.

This thread from a little while ago (to which you contributed) discusses one interesting use case.

> [@Does the design of a very large building have to account for the curvature of the Earth?](https://boards.straightdope.com/t/does-the-design-of-a-very-large-building-have-to-account-for-the-curvature-of-the-earth/949455):
>
> This question is inspired by a facility being built by Tesla in southeast Austin. I drive by it from time to time and I am struck by how large it is. The building is not very tall, but it is going to cover a very large area. Do the architects and engineers for this car factory have to account for the fact that the Earth is round when designing a building of such a large linear dimension? Is the floor of the factory designed to be truly flat even though the Earth below the foundation is not? …

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