Donald is initially not interested in Mathmagic Land, believing that math is for “eggheads“. When “Mr. Spirit“ suggests a connection between math and music, though, Donald is intrigued. First, Donald discovers the relationships between octaves and string length which develop the musical scale of today. Next, Donald finds himself in ancient Greece, where Pythagoras and his contemporaries are discovering these same relationships. Pythagoras’ music is, as the Spirit explains, the basis of today’s music, and that music would not exist without “eggheads“.
After shaking hands with Pythagoras, he vanishes too and Donald finds on his hand a pentagram, the symbol of the secret Pythagorean society. The Spirit then shows Donald how the mysterious golden section appears in the pentagram. Next, the pentagram is shown to contain the pattern for constructing golden rectangles many times over. According to the Spirit, the golden rectangle has influenced both ancient and modern cultures in many ways. Donald learns how the go
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2 months ago 00:32:54 1
Ptolemy’s Theorem and the Almagest: we just found the best visual proof in 2000 years