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of getting things wrong. I'm Mark Chrysler. Today's episode, three years of Sundays. This is the story of

two men, separated by more than 200 years, among other things. The first is Marine Mersenne,

a French friar, born in 1588, whose genius spread itself thinly across a range of human endeavors.

He worked on astronomy with Galileo, philosophy with Descartes, math with Pascal.

He wrote tracks on theology against mysticism, dutiful concordances for the Old Testament.

His correspondences and advocacy and work is credited as laying the groundwork for the Academy

to Science.

But he is best remembered today for two areas that he changed fundamentally.

Prime numbers and music.

Mersenne is known as the father of acoustics, having figured out various rules, laws, and theorems

...