Grant Sanderson

@3blue1brown

Animated videos about math:

3blue1brown.com
Joined October 2014
308 Photos and videos Photos and videos

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  1. Pinned Tweet
    Dec 2

    From the video:

    4 replies 25 retweets 230 likes
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  2. Dec 13

    To those of you who have learned from math textbooks: If you could go back in time, what do you wish you could tell your younger self about how to read them more effectively?

    237 replies 98 retweets 857 likes
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  3. Dec 12

    I would love to hear 's review here too :)

    2 replies 2 retweets 27 likes
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  4. Dec 12

    We need a word for the kind of educational content that really starts from ground 0 and builds things up. E.g. think of 's work. Even though I'm quite comfortable with music, I found the videos below extremely satisfying for this reason. I think you will too!

    Hey world, I made a three-part series of videos explaining the very basics of music theory as efficiently as I could. Melody, harmony, and a very brief summary of rhythmic concepts. Perhaps you will find them useful:
    21 replies 42 retweets 322 likes
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  5. Dec 12

    3 replies 1 retweet 20 likes
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  6. Dec 12

    Lest you should think that such less well-known sums are much ado about nonsense I do give these two cents: The universe has got an answer which is not what most would first surmise, it is a compromise, and though it seems a laugh the universe gives “half”.

    1 reply 6 retweets 67 likes
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  7. Dec 12

    From When one takes one from one plus one from one plus one and on and on but ends anon then starts again, then some sums sum to one, to zero other ones. One wonders who'd have won had stopping not been done; had he summed every bit until the infinite.

    5 replies 28 retweets 133 likes
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  8. Dec 11

    Just stumbled across the state of the art explanation for Histograms, by :

    2 replies 73 retweets 454 likes
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  9. Dec 10

    I don't know what's funnier, the fact that there is a Wikipedia page for "spherical cow", or that this is the prominent image of the page (by )

    25 replies 277 retweets 1,298 likes
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  10. Retweeted
    Dec 10

    NEW Video! "What is a Fourier Series? (Explained by drawing circles) - Smarter Every Day 205" A fun collaboration video with

    41 replies 216 retweets 1,122 likes
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  11. Dec 10

    Be sure to go to to play around.

    1 reply 2 retweets 44 likes
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  12. Dec 10

    This latest video on is utterly beautiful! From the visuals to the logic, to Neil Sloane's unbridled enthusiasm in relaying it all:

    4 replies 32 retweets 254 likes
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  13. Dec 7

    Once you know the sphere-to-cylinder relation, here’s another way to fit in those four circles.

    0:21
    Addendum to 's latest video on the area of a sphere: Another way to wrap four circles into a sphere
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    5 replies 59 retweets 368 likes
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  14. Dec 2

    For those curious about why this is wrong, consider how the width of the “triangles” on the sphere varies with its height. It’s sinusoidal, not linear, so they wouldn’t unwrap as triangles.

    12 replies 10 retweets 170 likes
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  15. Dec 2

    Love this! Very subtle. Not all that look like triangles are actually triangles!

    Replying to @3blue1brown
    But what about my proof that the surface area of a sphere is pi^2 r^2?
    2 replies 20 retweets 249 likes
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  16. Dec 2

    Hooray for active problem solving!

    Replying to @3blue1brown
    Thank you, was fun to solve ! I appreciate this new format
    5 retweets 68 likes
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  17. Dec 2

    New video! But WHY is a sphere's surface area four times its shadow?

    24 replies 163 retweets 981 likes
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  18. Retweeted
    Dec 2

    Teaching little kids Cartesian coordinates

    8 replies 67 retweets 534 likes
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  19. Dec 2

    New video uploading...

    11 replies 9 retweets 296 likes
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  20. Dec 1

    Simulating natural selection, by

    6 replies 69 retweets 326 likes
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