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BrainStuff Classics: How Do We Define the Kilogram?

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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  Did the Maya Civilization Fall Because of Climate Change?

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  BrainStuff Classics: What's the History of Nail Polish?

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  BrainStuff Classics: Do Dogs Get Embarrassed When We Put Them in Costumes?

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  If a Stop Light Is Stuck on Red, What Can You Do?

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  How Did Benedict Arnold Become So Infamous?

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  How Do Pallas's Cats Work?

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  What's the Difference Between Sociopathy and Psychopathy?

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  Are Humans Built to Drink Milk After Childhood?

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  How Should You Escape a Sinking Car?

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  How Do Cherry Blossom Trees Work?

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  How Did Bessie Stringfield Shape Motorcycle History?

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  How Do Squirrels Organize Their Hoards?

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  BrainStuff Classics: What Makes Some Lakes Explode?

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  BrainStuff Classics: Why Is Palm Oil in So Many Things?

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  Where Did the Word 'OK' Come From?

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  Should You Beware the Ides of March?