This extra footage follows the main 10-minute video at: https://youtu.be/mZBwsm6B280 (watch this first) More links & stuff in full description below ↓↓↓
3blue1brown video on the shadow a cube: https://youtu.be/ltLUadnCyi0 3blue1brown: https://www.youtube.com/channel/UCYO_jab_esuFRV4b17AJtAw
Grant Sanderson on The Numberphile Podcast: https://youtu.be/A0RH93XvSyU
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Videos by Brady Haran
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