American soldiers have stood guard over the Tomb of the Unknown Soldier every minute of every day since July 2, 1937. Learn what this monument means and who's interred there in today's classic episode of BrainStuff, based on this article: https://people.howstuffworks.com/culture-traditions/national-traditions/tomb-unknown-soldier.htm

American soldiers have stood guard over the Tomb of the Unknown Soldier every minute of every day since July 2, 1937. Learn what this monument means and who's interred there in today's classic episode of BrainStuff, based on this article: <a href="https://people.howstuffworks.com/culture-traditions/national-traditions/tomb-unknown-soldier.htm">https://people.howstuffworks.com/culture-traditions/national-traditions/tomb-unknown-soldier.htm</a>

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.

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BrainStuff Classics: What Is the Tomb of the Unknown Soldier?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/ee865ae6-541f-4810-b057-b501014761e5/transcript

The zipper as we know it is barely over 100 years old, but it's the closure of choice for thousands of everyday products. Learn the history and physics behind the zipper (and why so many zipper tabs say 'YKK') in today's episode of BrainStuff, based on these articles: https://science.howstuffworks.com/innovation/everyday-innovations/zipper.htm/printable; https://home.howstuffworks.com/home-improvement/household-hints-tips/cleaning-organizing/question469.htm

The zipper as we know it is barely over 100 years old, but it's the closure of choice for thousands of everyday products. Learn the history and physics behind the zipper (and why so many zipper tabs say 'YKK') in today's episode of BrainStuff, based on these articles: https://science.howstuffworks.com/innovation/everyday-innovations/zipper.htm/printable; https://home.howstuffworks.com/home-improvement/household-hints-tips/cleaning-organizing/question469.htm

Where Did Zippers Come From?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/ac6128fc-db70-4e28-95c3-b50001589646/transcript

Ivan IV Vasilyevich wasn't called 'the Terrible' during his lifetime, but he lived up to the name. Learn how he became Russia's first tsar, expanded his power, and terrorized his political enemies -- real and imagined -- in today's episode of BrainStuff, based on this article: https://history.howstuffworks.com/history-vs-myth/ivan-terrible.htm

Ivan IV Vasilyevich wasn't called 'the Terrible' during his lifetime, but he lived up to the name. Learn how he became Russia's first tsar, expanded his power, and terrorized his political enemies -- real and imagined -- in today's episode of BrainStuff, based on this article: <a href="https://history.howstuffworks.com/history-vs-myth/ivan-terrible.htm">https://history.howstuffworks.com/history-vs-myth/ivan-terrible.htm</a>

What Was Terrible About Ivan the Terrible?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/be8c9bdd-e87a-41ea-9601-b4fe014bdfca/transcript

The thymus is a small organ in the center of your chest that's responsible for getting your immune system's T cells ready to protect you from germs. Learn what we know and don't know about how the thymus works (and about some of the autoimmune conditions that can emerge when it doesn't work as expected) in today's episode of BrainStuff.

The thymus is a small organ in the center of your chest that's responsible for getting your immune system's T cells ready to protect you from germs. Learn what we know and don't know about how the thymus works (and about some of the autoimmune conditions that can emerge when it doesn't work as expected) in today's episode of BrainStuff.

How Does the Thymus Work (and What Can Happen When It Doesn’t)?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/72862ed3-45dd-457e-b801-b4c601724a6a/transcript

BrainStuff Classics: What Is the Tomb of the Unknown Soldier?

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