Programme Index

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Horizon

2008-2009

Episode 4: Do You Know What Time It Is?

Duration: 59 minutes

on BBC One Yorks & Lincs

Particle physicist Professor Brian Cox asks, 'What time is it?' It's a simple question and it sounds like it has a simple answer. But do we really know what it is we're asking? Show more

BBC One Yorks & Lincs

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BBC One

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