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The nature of time
What is Einstein's theory of relativity, and can time really be warped by speed and gravity? Dallas asks a man who knows - Professor Paul Davies.
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Bang Goes the Theory: Putting Science to the Test with 主播大秀 One
A content bundle of clips from the latest series of Bang Goes the Theory
More clips from Episode 1
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Gravity defying water?
Duration: 03:19
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How do atomic clocks work?
Duration: 01:16
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What is a second?
Duration: 00:45
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Oil spills explained
Duration: 03:39
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The Standby Task Force—Series 8, Disaster Relief
Duration: 01:41
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Leaves on the track—Series 8, Trains
Duration: 02:13
