What is Nostr?
Greg Egan /
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2024-06-07 04:11:23

Greg Egan on Nostr: A complete globe of the world made from a material that can be bent but not stretched ...

A complete globe of the world made from a material that can be bent but not stretched or sheared (thus preserving local distances and angles) will be rigid — but if you cut out large enough portions at high latitudes, what remains can be reshaped so the equator becomes an ellipse.

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