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 kilogram me, the weight on ... See full summary »

Director:

Mike Cunliffe

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Cast

Episode cast overview:
Marcus du Sautoy ... Himself - Presenter
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Storyline

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 kilogram me, the weight on which every other weight is based. But there is a problem with Le Grand K - it is losing weight. Marcus explores the history of this strange object and the astonishing modern day race to replace it. Written by wikipedia

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Documentary

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Release Date:

17 June 2013 (UK) See more »

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