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Watch 3-2-1 Contact Season 6 Episode 21 Online

  • 6.5/10
  • COUNTRIES: United States of America
  • Subtitles: English

Models are used to test ideas before they become large-scale. A class of intermediate-school students go through modeling tactics in building a spring-driven car. We also see newsreel clips of models that produced both commonplace items and inventions that didn't pan out.