Patreon Early access to "Essence of.."
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Topology
/youtube/video/AmgkSdhK4K8?t=38

Inscribed square problem
/youtube/video/AmgkSdhK4K8?t=83

Unordered pairs
/youtube/video/AmgkSdhK4K8?t=388

Inscribed rectangle problem
/youtube/video/AmgkSdhK4K8?t=799

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
/youtube/channel/UCYO_jab_esuFRV4b17AJtAw

Using topology to solve a counting riddle | The Borsuk-Ulam theorem and stolen necklaces 706,939 views
/youtube/video/yuVqxCSsE7c

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