Summer of Math Exposition

Presented by 3Blue1Brown 3blue1brown

in 3D, 7D, and nowhere else

Audience:

Tags: quaternionscross-productoctonions

A visual guide that uses the cross product as a stepping stone to make sense of octonion geometry and why 7D is so special.


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4.5 Overall score*
141 Rank
13 Votes
6 Comments

Comments

6.5

Man that’s such a good intro. The rest of the visuals are a bit squished though.

4.8

It is a very highly stylistic video. It tries to do a old-internet style aesthetic which is implemented very well. Sadly, the content in the video is not suitable as a learning source. It is too fast, too much distractive effects, etc. But it is entertaining for someone who already knows the stuff in the video, even half of them mentioned in the video. So I rate it 4.8

3

The idea about sacrificing properties

6

Really enjoyed this! Loved the humour. No real criticism, I feel like everything was explained fairly well at a good pace that didn’t get bogged down but wasn’t rushed. The ending was a bit abrupt. Maybe you could have added a quick summary of the main points? But otherwise really good.

1.5

Visuals are tilted and vaguely presented

2.5

Try to be clearer, use simple animation (audio-video exaggerate effects doesn’t help students). A standard frontal lesson will be more useful.