When did Horizon Season 4 Episode 17 air?
Horizon Season 4 Episode 17 aired on September 26, 1967.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Horizon looks at a Scottish chemist's unusual application for whisky: a measure of radioactive carbon 14 used for determining how old an object is.
Direct answers for episode-level questions and details.
Horizon Season 4 Episode 17 aired on September 26, 1967.
This episode runs for approximately 60 minutes.
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