Pythagoras · Mathematics
The Pythagorean discovery that musical harmony is governed by simple whole-number ratios - the first time an invisible mathematical law was found behind a sensible quality, and the seed of mathematical physics.
You learned how the Pythagoreans discovered the numerical ratios behind musical harmony. Explain the basic ratios (octave, fifth, fourth) and why this discovery mattered so much for the history of science.
Leads to Kepler.
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