BrainStuff Classics: How Do We Define the Kilogram?
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Description
The kilogram used to be measured against an agreed-upon chunk of metal stored in France, but no longer. Learn the new measure of this standard unit of measurement in today's classic episode of BrainStuff, based on this article: https://science.howstuffworks.com/math-concepts/kilogram-is-dead-meet-kilogram-20.htm See omnystudio.com/listener for privacy information.
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