Synopsis
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?
- Programme: Measuring Mass: The Last Artefact
- Channel: BBC Four
- Broadcast year: 2021
- Chemistry
Licence: ERA Licence required
UK only
Staff and students of licensed education establishments only
Cannot be adapted
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