Why we’re killing the kilogram for a new one(theverge.com)
theverge.com
Why we’re killing the kilogram for a new one
https://www.theverge.com/2018/11/13/18087002/kilogram-new-definition-kg-metric-unit-ipk-measurement
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https://www.theverge.com/2018/11/13/18087002/kilogram-new-definition-kg-metric-unit-ipk-measurement
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