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

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

Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

BrainStuff

BrainStuff Classics: How Do We Define the Kilogram?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/1e8c0a8e-5d0f-48f3-a1bc-b0f20169e95e/transcript

No, it's not the lyrics -- the author of this nursery rhyme is what's in question. Learn why (and how Henry Ford was involved) in today's classic episode of BrainStuff, based on this article: https://entertainment.howstuffworks.com/arts/literature/controversy-behind-mary-had-little-lamb.htm

No, it's not the lyrics -- the author of this nursery rhyme is what's in question. Learn why (and how Henry Ford was involved) in today's classic episode of BrainStuff, based on this article: https://entertainment.howstuffworks.com/arts/literature/controversy-behind-mary-had-little-lamb.htm

BrainStuff Classics: What's the Controversy Behind 'Mary Had a Little Lamb'?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/7724a198-1313-48de-937b-b48100f05547/transcript

In 1961, the USSR set off a 57-megaton atomic bomb, nicknamed the Tsar Bomba. It's still by far the most powerful nuclear weapon ever built. Learn how its test changed history in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/tsar-bomba.htm

In 1961, the USSR set off a 57-megaton atomic bomb, nicknamed the Tsar Bomba. It's still by far the most powerful nuclear weapon ever built. Learn how its test changed history in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/tsar-bomba.htm

What Was the World's Largest Nuclear Weapon?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/7bf7466a-95b8-4c78-b862-b48100f05548/transcript

This large, loud hawk is probably North America's most common because it's so adaptable. Learn more about red-tailed hawks in today's episode of BrainStuff, based on this article: https://animals.howstuffworks.com/birds/red-tailed-hawk.htm

This large, loud hawk is probably North America's most common because it's so adaptable. Learn more about red-tailed hawks in today's episode of BrainStuff, based on this article: https://animals.howstuffworks.com/birds/red-tailed-hawk.htm

How Do Red-Tailed Hawks Work?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/8322b03c-0481-4032-bbb4-b48100f0554a/transcript

BrainStuff Classics: How Do We Define the Kilogram?

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