video thumbnail 15:42
Divergence and curl: The language of Maxwell's equations, fluid flow, and more

2018-06-21

[public] 2.37M views, 131K likes, 571 dislikes audio only

channel thumb3Blue1Brown

Visualizing two core operations in calculus. (Small error correction below)

Help fund future projects: https://www.patreon.com/3blue1brown

An equally valuable form of support is to simply share some of the videos.

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

My work on this topic at Khan Academy: https://www.khanacademy.org/math/multivariable-calculus/multivariable-derivatives

Timestamps

0:00 - Vector fields

2:15 - What is divergence

4:31 - What is curl

5:47 - Maxwell's equations

7:36 - Dynamic systems

10:37 - Explaining the notation

13:28 - No more sponsor messages

Correction at 4:55, the narration should say "counterclockwise rotation gives positive curl, clockwise rotation gives negative curl". The diagram is correct, though.

For more fun fluid-flow illustrations, which heavily influenced how I animated this video, I think you'll really enjoy this site:

https://anvaka.github.io/fieldplay/

Music by Vincent Rubinetti:

https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown

Thanks to these viewers for their contributions to translations

Hebrew: Omer Tuchfeld

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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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