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This video features the song Rain II by Andrew Huang which is available here: http://www.andrewhuang.bandcamp.com

Music by Andrew Huang:
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Journey to the Microcosmos is a Complexly production.
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SOURCES:
https://www.journals.uchicago.edu/doi...
https://www.britannica.com/science/Pa...
https://books.google.com/books?id=yvn...
https://www.jstor.org/stable/1940365