Season 7, Episode 7 Pressure Cookers, Mechanical Singing Birds, Buoys, Tank Trailers

First Aired: June 5, 2009

Pressure cookers; oceanographic buoys; mechanical singing birds; stainless-steel tank trailers.

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  • Premiered: January 6, 2001
  • Rating: TV-G
  • Premise: A series that shows how familiar objects used in everyday life are made. (more)

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