When did Horizon Season 23 Episode 15 air?
Horizon Season 23 Episode 15 aired on April 28, 1986.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 23 · Episode 15
Twice Five Plus the Wings of a Bird
Apr 28, 1986·1h
Horizon researches how we acquire mathematical abilities in the first place.
Episode FAQ
Direct answers for episode-level questions and details.
How long is Horizon Season 23 Episode 15?
This episode runs for approximately 60 minutes.
Comments
Comments coming soon
Discuss episodes with other viewers