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Peppermint Oil, Tennis Rackets, Desalination

Exploring how one family in America make three quarters of the world's peppermint oil. Also, a look at state-of-the-art, performance-enhancing tennis rackets.

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  • Originally Aired June 13, 2019
  • Runtime 25 minutes
  • Content Rating United States of America TV-G
  • Network Discovery
  • Created September 7, 2019 by
    Administrator admin
  • Modified January 27, 2022 by
    mike270384