Alan Davies attempts to answer the proverbial question: how long is a piece of string? But what appears to be a simple task soon turns into a mind-bending voyage of discovery where nothing is as it seems.
| Title | Horizon - Season 47 Episode 6 : How Long is a Piece of String? |
|---|---|
| Alternative Titles | BBC Horizon |
| Subtitle Available |
 ETC.
|
| First Air Date | 1964-02-04 |
| Last Air Date | 2025-10-06 |
| Number of Episodes | 1173 |
| Number of Seasons | 61 |
| Genres | Documentary, |
| Networks | BBC Two, |
| Casts | |
| Plot Keywords | , |
Episodes List
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Horizon Season 47 :Episode 1 Do I Drink Too Much? Do I Drink Too Much?
2009-10-13Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 2 The Secret You The Secret You
2009-10-20Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 3 Fix Me Fix Me
2009-10-27Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 4 Who's Afraid of a Big Black Hole? Who's Afraid of a Big Black Hole?
2009-11-03Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 5 Why Do We Talk? Why Do We Talk?
2009-11-10Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 6 How Long is a Piece of String? How Long is a Piece of String?
2009-11-17Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 7 The Secret Life of the Dog The Secret Life of the Dog
2010-01-06Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 8 Why Do Viruses Kill? Why Do Viruses Kill?
2010-01-13Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 9 Pill Poppers Pill Poppers
2010-01-20Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 10 Don't Grow Old Don't Grow Old
2010-02-03Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 11 To Infinity and Beyond To Infinity and Beyond
2010-02-10Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 12 What Makes a Genius? What Makes a Genius?
2010-02-17Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 13 Did Cooking Make Us Human? Did Cooking Make Us Human?
2010-03-02Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 47 :Episode 14 Is Everything We Know About the Universe Wrong? Is Everything We Know About the Universe Wrong?
2010-03-09Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
