When did NOVA Season 4 Episode 18 air?
NOVA Season 4 Episode 18 aired on June 22, 1977 at 9 PM ET.
NOVA
PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.
Season 4 · Episode 18
Across the Silent Barrier
Aired Jun 22, 1977at 9PM·55m
NOVA explores the different means by which hearing-impaired people have learned to penetrate the world of the hearing by visiting with Kitty O'Neil—a woman record-holding speed car racer; Frances Parsons, an advocate of hearing-impaired persons' rights; and workers at Silent Industries—a factory in Los Angeles founded by a deaf man.
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How long is NOVA Season 4 Episode 18?
This episode runs for approximately 55 minutes.
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