# If the Earth was a cube

**URL:** <https://boards.straightdope.com/t/if-the-earth-was-a-cube/385065>\
**Category:** Factual Questions\
**Created:** [December 21, 2006, 2:57pm UTC](https://boards.straightdope.com/t/if-the-earth-was-a-cube/385065 "2006-12-21T14:57:35Z")\
**Posts on this page:** 1\
**Showing post:** 97

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**Author:** ![Pasta](https://avatars.discourse-cdn.com/v4/letter/p/ecccb3/32.png) [@Pasta](https://boards.straightdope.com/u/Pasta)\
**Post date:** [December 23, 2006, 8:55pm UTC](https://boards.straightdope.com/t/if-the-earth-was-a-cube/385065/97 "2006-12-23T20:55:33Z")

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Here’s a slice through the center of the cube showing the gravitational potential energy and its gradient (which shows the direction of the pull of gravity.) I show the interior for anyone interested in making a tunnel.

[potential and gradient](http://home.fnal.gov/~rbpatter/squearth/potential.gif)

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