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Precision: The Measure of All ThingsEpisodes

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  1. Heat, Light and Electricity

    3/3How we came to measure and harness the power of heat, light and electricity.

  2. Mass and Moles

    2/3Exploring the history of the world's master kilogramme and the race to replace it.

  3. Time and Distance

    1/3Professor Marcus du Sautoy explores measurement by looking at the metre and the second.