Những khối va chạm tính toán số pi còn nhiều điều thú vị hơn thế

Two colliding blocks compute pi, here we dig into the physics to explain why

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The original paper by Gregory Galperin:

https://www.maths.tcd.ie/~lebed/Galperin.%20Playing%20pool%20with%20pi.pdf

Adam Brown's paper on the analogy with Grover's Algorithm:

https://arxiv.org/pdf/1912.02207

Here's a lovely interactive built by GitHub user prajwalsouza after watching this video: https://prajwalsouza.github.io/Experiments/Colliding-Blocks.html

Matt Parker's Pi Day video:

https://youtu.be/vlUTlbZT4ig

NY Times blog post about this problem:

https://wordplay.blogs.nytimes.com/2014/03/10/pi/

Timestamps:

0:00 - Intro

0:48 - Recap, the surprise pi

3:58 - The game plan

5:31 - How to analyze the blocks

14:59 - The geometry puzzle

20:05 - Small angle approximations

25:00 - The value of pure puzzles

SEV#7: https://youtu.be/RTCQYcOpmN4

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https://github.com/3b1b/manim

https://github.com/ManimCommunity/manim/

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The music is by Vincent Rubinetti.

https://www.vincentrubinetti.com

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

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