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Lovecraft 125th -- Non-Euclidean challenge

Posted 8 years ago
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H. P. Lovecraft was born August 20, 1890, 125 years ago. He's most famous for his story The Call of Cthulhu. Here's an excerpt.

I mention his talk about angles because it suggests something Wilcox had told me of his awful dreams. He said that the geometry of the dream-place he saw was abnormal, non-Euclidean, and loathsomely redolent of spheres and dimensions apart from ours. .... Parker slipped as the other three were plunging frenziedly over endless vistas of green-crusted rock to the boat, and Johansen swears he was swallowed up by an angle of masonry which shouldnÂ’t have been there; an angle which was acute, but behaved as if it were obtuse.

We have various non-Euclidean Demonstration, mostly using the Poincaré disk. Here's a challenge. Use a small red dot to indicate Parker. Then use non-Euclidean geometry of some sort to put Parker in a dangerous situation.

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