宇宙の形を宇宙の内部から調べるには? 幾何学の考察対象「多様体」を知る
"World Map of Mathematics" (KADOKAWA, released June 2023) Amazon: https://amzn.to/3CuC28W Koga's website introduction: https://mkmath.net/mapofmath/ 00:00 Introduction 01:07 What is Geometry? 03:35 What is a Manifold? 07:02 The Sphere as a Manifold 10:35 Coordinate Transformation of a Manifold 12:58 Summary = ... Commentary: Maki Koga ◆Website: http://mkmath.net/ ◆YouTube Lecture Video Collection: http://mkmath.net/youtube/ ◆Twitter: / 4p_t ◆Wish List: https://www.amazon.jp/hz/wishlist/ls/... *Support for photography equipment, books, etc. would be greatly appreciated. Please note that this is a personal wish list.

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エントロピーを理解すれば、世界の見え方が変わる

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基礎数学I ①多様体論へのいざない

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なぜ音階は「12」なのか?数学で解説(ときどきプログラミング、Python)和音の不思議を三角形で解説!ピタゴラス音律と平均律など音楽を数学でわかりやすく解説。1オクターブが12音階の理由。

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道路陥没も“透視”する数学の難問「波動散乱の逆問題」を1ミリでも理解したい【橋本幸治の理系通信】#木村建次郎

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Weird Things Happen When Energy Goes Negative

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Trump im Umfragetief | Überteuerte WM-Tickets | FDP-Comeback? | heute-show vom 05.06.2026

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Tesla’s 3-6-9 and Vortex Math: Is this really the key to the universe?

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トポロジーって何が面白いの? 美しすぎる数学の問題

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What Research Fields Are There in Math? I Drew Out a Map of Mathematics!

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We were wrong about how time works inside a black hole! (My mind is blown)

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abc予想の主張を理解する

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The Standard Model of Particle Physics: A Triumph of Science

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I Hacked This Temu Router. What I Found Should Be Illegal.

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ベルの不等式とは何か(CHSH不等式)
![[Seriously?] The proof of "Pi = 2" is insane. A mathematical trap that defies intuition.](https://i.ytimg.com/vi/ck9fKPhfIXA/hqdefault.jpg?sqp=-oaymwEjCNACELwBSFryq4qpAxUIARUAAAAAGAElAADIQj0AgKJDeAE=&rs=AOn4CLAcQdEsgoHM3mDPCQOKQtXQcNrALQ)
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[Seriously?] The proof of "Pi = 2" is insane. A mathematical trap that defies intuition.

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Why is the surface area of a sphere four times the area of a circle?

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Necessity of complex numbers

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基礎数学I④ 多様体の定義

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一筆書きできる条件とは?P≠NP予想とも繋がる「グラフ理論」

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