Precision The Measure Of All Things EP02 PDTV x264-NoGRP
Part 2 of 3 - “Mass and Moles”
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 which every other weight is based. But there is a problem with Le Grand K - it is losing weight. Professor Marcus du Sautoy explores the history of this strange object and the astonishing modern day race to replace it.
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Precision.The.Measure.Of.All.Things.Ep02.PDTV.x264-NoGRP
MP4 | AAC VBR | 248MB
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