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Why colliding blocks compute pi

6.4M views · Mar 13, 2025 · Education

Comments · 3.1K

  • @3blue1brown · 1 year ago · pinned

    Here&apos;s the follow-on video about quantum computing: <a href="https://www.youtube.com/watch?v=RQWpF2Gb-gU">https://youtu.be/RQWpF2Gb-gU</a><br><br>In my original plan, that follow-on was going to be much more centered around the parallel with this block collision problem. In the end, that structure proved to be more confusing than helpful. I still show the connection, but only as a brief structured exercise at the end. It&apos;s based on this paper by my friend Adam Brown: <a href="https://arxiv.org/pdf/1912.02207">https://arxiv.org/pdf/1912.02207</a>

    299

  • @standupmaths · 1 year ago

    For the record, I offered Grant a &apos;higher quality&apos; Parker Square. He just laughed for a while.

    11K

  • @polypolyman · 1 year ago

    Always love it when the answer is “that’s beyond the scope of math” and not just “that’s beyond the scope of this video”

    7.2K

  • @Elia2Tu · 11 months ago

    Probably nobody will read this comment, but your original video is what inspired me to do what I did for my graduation project. I did a &quot;physics simulation game&quot; with different experiments to be used on a classroom, and the colliding blocks computing pi was the first one I did, and the one I spent the most time on. You quite literally changed my life and helped me find what I needed to complete my degree. I’ll be forever grateful for that video.

    1K

  • @fiffy6572 · 1 year ago

    babe wake up a new season of those colliding blocks came out

    2K

  • @stellacollector · 1 year ago

    You know things are gonna get serious when the blocks in the thumbnail turned 3D.

    3.9K

  • @touhhoneyblock · 10 months ago

    I love when math throws in random pi jumpscares when you actualy analyse how things behave

    140

  • @deleetiusproductions3497 · 1 year ago

    crazy how it&apos;s been 6 years since that video already

    6K

  • @AntiVectorTV · 1 year ago

    Secretly genius to discuss the off-by-one error possibility and then post this one day before Pi day.

    468

  • @TheWinterscoming · 1 year ago

    <a href="https://www.youtube.com/watch?v=6dTyOl1fmDo&amp;t=164">2:44</a> love that you knew someone would complain about the sound even though it&apos;s an obvious simulation where you add &quot;light&quot; flashes and sound to demonstrate collisions

    214

  • @ReiSabio11235 · 1 year ago

    Professor Sanderson.<br> When you released that video I was only a high school student, that met your channel while trying to self taught calculus.<br> Now I am a physics bachelor that has started its first day on a applied physics company, thank you very much for having been such a important teatcher for me during thosse years even if we haven&apos;t met.

    1K

  • @pxlheart6237 · 1 year ago

    The colliding blocks video was my first introduction to this channel. I&apos;m now studying Computing &amp; IT and Mathematics at university. Crazy how things change in such a short time. Keep doing what you&apos;re doing Grant, you&apos;ll inspire a million more mathematicians yet :D

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