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Measuring Mass: The Last Artefact

Duration: 53 minutes

on BBC Four HD

Available for years

A piece of metal that defines the mass of a kilogramme has, over time, lost the equivalent of the weight of an eyelash. What are the consequences for how we measure our world? Show more

Contributors

Producer:
Ed Watkins
Director:
Ed Watkins
Executive Producer:
Aaron Pruitt

BBC Four HD

About BBC Four

BBC Four reflects arts, music and culture with an ambitious range of intellectually and culturally enriching programmes, taking an expert and in-depth approach to its subjects.