Precision: The Measure of All Things

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  • : 3
  • : 2
  • BBC Four
  • Documentary History

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Time and Distance
Episode overview
Professor Marcus du Sautoy tells the story of the metre and the second - how an astonishing journey across revolutionary France gave birth to the metre, and how scientists today are .. show full overview
1x2
Mass and Moles
Episode overview
Deep underground in a vault beneath Paris lives the most important lump of metal in the world - Le Grand K. Created in the 19th century, it's the world's master kilogramme, the weight on .. show full overview
1x3
Light, Heat and Electricity
Episode overview
From lightning bolts and watt engines to electromagnetic waves and single electrons, Professor Marcus du Sautoy continues his journey into the world of measurement as he reveals how we .. show full overview

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