video thumbnail 16:29
Who cares about topology? (Inscribed rectangle problem)

2016-11-04

[public] 2.16M views, 86.1K likes, 618 dislikes audio only

channel thumb3Blue1Brown

An unsolved conjecture, and a clever topological solution to a similar question.

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Special thanks to these supporters: http://3b1b.co/topology-thanks

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This video is based on a proof from H. Vaughan, 1977. To learn more, take a look at this survey:

https://pure.mpg.de/rest/items/item_3120610/component/file_3120611/content

Thanks to these viewers for their contributions to translations

Hebrew: Omer Tuchfeld

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Topology
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Inscribed square problem
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Unordered pairs
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Inscribed rectangle problem
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3Blue1Brown 3Blue1Brown, by Grant Sanderson, is some combination of math and entertainment, depending on your disposition. The goal is for explanations to be driven by animations and for difficult problems to be made simple with changes in perspective. For more information, other projects, FAQs, and inquiries see the website: https://www.3blue1brown.com
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