When did Horizon Season 21 Episode 2 air?
Horizon Season 21 Episode 2 aired on January 16, 1984.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon looks at the research advances in physics and technology of microelectronics.
Direct answers for episode-level questions and details.
Horizon Season 21 Episode 2 aired on January 16, 1984.
This episode runs for approximately 60 minutes.
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