ヨハネス・ケプラー ── 宇宙の調和を信じ、円を捨てた男

Johannes Kepler – The Man Who Believed in the Harmony of the Universe and Abandoned the Circle For two millennia, everyone believed that planets revolved in perfect circles. Johannes Kepler believed that the universe was built upon God's geometric harmony, and he attempted to explain the orbits of the six planets known at the time using five regular polyhedra. However, when he found a discrepancy of only eight-tenths of an angle between his teacher Tycho Brahe's data on Mars and its circular orbit, he abandoned the circle and arrived at the ellipse. This documentary introduces the life and mathematical achievements of the man who believed in the harmony of the universe and abandoned the circle. From "Mathematical History," a documentary channel that follows the lives and achievements of mathematicians. 0:00 Introduction 1:28 The Struggles and Faith of a Sickly Astronomer 6:31 From Eight-Circle Angles to Ellipses – The Discovery of the Three Laws 14:09 What the Man Who Abandoned the Circle Left Behind 【Synthesis】 VOICEVOX: Ryusei Aoyama https://voicevox.hiroshiba.jp/ 【BGM】 Angel's Dream - Aakash Gandhi (YouTube Audio Library) 【Video Materials】 AI-Generated Images: Google Gemini Mathematical Formula Animation: Manim Community (https://www.manim.community/) Map Data: Natural Earth (Public Domain) 【Main References】 MacTutor History of Mathematics: Johannes Kepler (https://mathshistory.st-andrews.ac.uk...) Wikipedia (en): Johannes Kepler (https://en.wikipedia.org/wiki/Johanne...) Britannica: Johannes Kepler (https://www.britannica.com/biography/...) Wikipedia: Kepler's laws of planetary motion (https://en.wikipedia.org/wiki/Kepler%...) Wikipedia: Astronomia nova (https://en.wikipedia.org/wiki/Astrono...) Wikipedia (en): Mysterium Cosmographicum (https://en.wikipedia.org/wiki/Mysteri...) Wikipedia: Harmonices Mundi (https://en.wikipedia.org/wiki/Harmoni...) Wikipedia: Kepler conjecture (https://en.wikipedia.org/wiki/Kepler_...) Wikipedia: Sphere packing (https://en.wikipedia.org/wiki/Sphere_...) Wikipedia (en): Katharina Kepler (https://en.wikipedia.org/wiki/Kathari...) Wikipedia (en): Tycho Brahe (https://en.wikipedia.org/wiki/Tycho_B...) Wikipedia (en): Rudolphine Tables (https://en.wikipedia.org/wiki/Rudolph...) MAA Convergence: Kepler — The Volume of a Wine Barrel (https://old.maa.org/press/periodicals...) Stanford Encyclopedia of Philosophy: Johannes Kepler (https://plato.stanford.edu/entries/ke...) #Mathematics #History of Mathematics #Mathematician #Documentary #Education #Kepler #Kepler's Laws #Planetary Motion #Elliptical Orbit #TychoBrahé #KeplerConjecture #Astronomy #Principia