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How Do They Do It?: Season 12

12x13 Macadamia Nuts; Tap Water; Crowd Barriers
TV-G

  • 2015-08-14T02:00:00Z on Discovery
  • 22m
  • United States
  • English
  • Documentary
South Africa's macadamia farmers; Chicago's water-filtration system. Also: the use of Mojo Barriers to keep music fans safe at the Pinkpop Festival in the Netherlands.
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