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Modern Marvels Season 15 Episode 36 Salt 2008

It's the only rock we eat, and we need it to live. History has shown that those who have salt rule the world--and today, this versatile substance has 14,000 known uses.

  • Released: 2008-12-01
  • Runtime: 44 minutes
  • Genre: Documentary
  • Stars:
  • Director:

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