Season 5, Episode 2 The Green Machine

First Aired: January 11, 1978

Time-lapse photography figures in this investigation of plant behavior. Included: the theories that plants can be coaxed to grow and can sense injury to other organisms; the process of photosynthesis; and evolution of vegetation. Ted O'Brien is the narrator of the program.

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  • Premiered: March 3, 1974
  • Rating: None
  • Premise: PBS's premier science-documentary series, which has won six Peabody Awards and more than 20 Emmys (four in 2002 alone) since its 1974 debut. `Nova' clearly, and often engagingly, `demystifies' a vast range of science, technology and history topics---past a… (more)

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