Math videoshttps://bsky.app/profile/3blue1brown.comhttps://bsky.app/profile/3blue1brown.com/post/3mhoaqgj6yk2mThis video was a complete joy to make. Here's a short preview, but next time you're looking to sit down for 45 minutes of math and art, take a look at the full version on YouTube: youtu.be/ldxFjLJ3rVY22 Mar 2026 19:10 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3mhoaqgj6yk2mhttps://bsky.app/profile/3blue1brown.com/post/3mgzte2acy22wHappy Pi Day! In a certain sense, π is not a constant, but a variable. Using our usual Euclidean distance, it is 3.14159… but applying other L^p norms on ℝ², half the unit circle's perimeter will give other values. For instance, at p=1 (taxicab geometry), “π” = 2√2. At p ≈ 2.2, it's 3.20.14 Mar 2026 16:17 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3mgzte2acy22whttps://bsky.app/profile/3blue1brown.com/post/3mfu2jly3y22dWell, math terminology being what it is, something like this was bound to happen eventually. (If you're curious about why these balls are so puny, the full talk is up on YouTube)27 Feb 2026 15:45 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3mfu2jly3y22dhttps://bsky.app/profile/3blue1brown.com/post/3mdq5hpa4j22bNew video! Memorable for its delightfully absurd name, the Hairy Ball Theorem is extremely beautiful and has some surprising applications: youtu.be/BHdbsHFs2P031 Jan 2026 15:36 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3mdq5hpa4j22bhttps://bsky.app/profile/3blue1brown.com/post/3mcuhg7pw3k2gThe Ladybug Clock puzzle20 Jan 2026 15:20 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3mcuhg7pw3k2ghttps://bsky.app/profile/3blue1brown.com/post/3m52bqshwe22lI had fun joining @peterrowlett.net and @steckl.es recently on their mathematical objects podcast, talking about my wood puzzle collection. Most of the time was spent struggling desperately to describe a highly visual topic in an audio-only context. https://open.spotify.com/episode/0rRMWygzoqGia2Ti7hb4dR07 Nov 2025 14:23 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3m52bqshwe22lhttps://bsky.app/profile/3blue1brown.com/post/3m4v6b42i5c27The next video in the Laplace Transform sequence is up! youtu.be/FE-hM1kRK4Y Here, we dig into a concrete example, the forced oscillator. Some of you may remember that this was relevant for studying why light slows down in a medium.05 Nov 2025 13:37 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3m4v6b42i5c27https://bsky.app/profile/3blue1brown.com/post/3m2yqek4huk2oEver since I made a video about Fourier Transforms, one of the most requested topics on the channel has been its close cousin, the Laplace Transform. I've been having a lot of fun animating a mini-series about this topic, and the main part is now out. youtu.be/j0wJBEZdwLs https://youtu.be/j0wJBEZdwLs12 Oct 2025 12:49 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3m2yqek4huk2ohttps://bsky.app/profile/3blue1brown.com/post/3lz4khv54r22jMuch of Euclid’s Elements is easily misunderstood. Some proofs seem to have logical gaps. Some constructions seem pointless, others seem needlessly convoluted. Each of these provides a window into how the ancient Greeks thought about math and the philosophical role that geometry played. https://youtu.be/M-MgQC6z3VU18 Sep 2025 14:24 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lz4khv54r22jhttps://bsky.app/profile/3blue1brown.com/post/3lyapipyxlk2uNew video about a piece by the modern artist Sol LeWitt, and the group theory behind it. youtu.be/_BrFKp-U8GI07 Sep 2025 12:39 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lyapipyxlk2uhttps://bsky.app/profile/3blue1brown.com/post/3lxhqjzydb22yGuest video 3/5 while I'm on leave is now up! It's by a former SoME winner, covering key ideas in statistical mechanics to create a simple and discrete model mirroring the behavior of a fluid transitioning between a liquid and gaseous state. Enjoy! youtu.be/itRV2jEtV8Q https://youtu.be/itRV2jEtV8Q28 Aug 2025 14:21 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lxhqjzydb22yhttps://bsky.app/profile/3blue1brown.com/post/3lx3ki5vlc22oHey, psst, you can find early views for two upcoming guest videos on Patreon, one about statistical mechanics and another covering a story of modern art and group theory. Notes on early releases are always helpful before finalizing a video. https://www.patreon.com/posts/exploration-view-13715919223 Aug 2025 18:01 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lx3ki5vlc22ohttps://bsky.app/profile/3blue1brown.com/post/3lus2d32lf22eNew video on the details of diffusion models: youtu.be/iv-5mZ_9CPY Produced by Welch Labs, this is the first in a short series of 3b1b this summer. I enjoyed providing editorial feedback throughout the last several months, and couldn't be happier with the result. https://youtu.be/iv-5mZ_9CPY25 Jul 2025 12:27 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lus2d32lf22ehttps://bsky.app/profile/3blue1brown.com/post/3lodsf7trbk2eIn the most recent video about quantum computing, I saw many comments expressing a similar point of confusion regarding Grover's algorithm. I made a follow-up to (hopefully) clarify some of the issues and to address a few other under-emphasized points. youtu.be/Dlsa9EBKDGI https://youtu.be/Dlsa9EBKDGI04 May 2025 11:57 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lodsf7trbk2ehttps://bsky.app/profile/3blue1brown.com/post/3lnztkd2stc2pNew video! This covers the fundamentals of quantum computing and builds up to a step-by-step walk-through of an important algorithm in the field. youtu.be/RQWpF2Gb-gU https://youtu.be/RQWpF2Gb-gU30 Apr 2025 12:51 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lnztkd2stc2phttps://bsky.app/profile/3blue1brown.com/post/3lkbgxgjowk2wThe most viewed thing I've ever made is a short about two colliding blocks computing π. I just made a new edition of the explanation for why π shows up there, setting things up for a (coming soon) follow-on connecting it to quantum computing. youtu.be/6dTyOl1fmDo https://youtu.be/6dTyOl1fmDo13 Mar 2025 15:46 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lkbgxgjowk2whttps://bsky.app/profile/3blue1brown.com/post/3lj3vrh7w3c24I have a pi-day challenge for all the physics students among you (or anyone willing to set up an experiment). If you share your results with me by March 10th, I may feature them in a video, depending on how good the results are and how many I get.26 Feb 2025 17:30 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lj3vrh7w3c24https://bsky.app/profile/3blue1brown.com/post/3liu3ybnowk2wPart 2 of the collaboration with Terence Tao on the cosmic distance ladder is now out. It covers how we first learned the distances to planets, stars, and galaxies far, far away. youtu.be/hFMaT9oRbs4 https://youtu.be/hFMaT9oRbs423 Feb 2025 15:00 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3liu3ybnowk2whttps://bsky.app/profile/3blue1brown.com/post/3lhoauiswhs2iNew video! Terence Tao on how we measure the cosmos: youtu.be/YdOXS_9_P4U https://youtu.be/YdOXS_9_P4U08 Feb 2025 13:46 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lhoauiswhs2ihttps://bsky.app/profile/3blue1brown.com/post/3lhjgjci2w22mI've had fun editing together on a very different kind of video from the norm. Keep an eye out this weekend.06 Feb 2025 15:44 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lhjgjci2w22mhttps://bsky.app/profile/3blue1brown.com/post/3lgjib5kx622nHolograms! Easily my favorite project from last year. Full video: youtu.be/EmKQsSDlaa424 Jan 2025 22:50 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lgjib5kx622nhttps://bsky.app/profile/3blue1brown.com/post/3le355aj6cc2sNew* video! If you’ve ever wondered what topology is, this problem is one of the best examples I know of to give an authentic sense of what it’s all about: youtu.be/IQqtsm-bBRU24 Dec 2024 19:03 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3le355aj6cc2shttps://bsky.app/profile/3blue1brown.com/post/3lcg7yatqes2sI'd like to share some music from the channel's regular composer, Vince Rubinetti, for a project never (yet) made: vincerubinetti.bandcamp.com/album/galois https://vincerubinetti.bandcamp.com/album/galois03 Dec 2024 18:03 +0000at://did:plc:2ketphpobajcv4ujk5ncog4y/app.bsky.feed.post/3lcg7yatqes2s