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8min chapter
How Do Popcorn Kernels Pop?
But Why: A Podcast for Curious Kids
The Science and History of Zippers
This chapter explores the mechanics and components of zippers, using relatable analogies to explain their function. It also highlights the historical significance of zippers, including their use in NASA's spacesuits, and features an inspiring overview of legendary runners like Usain Bolt and Florence Griffith Joyner.
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Discover
highlights
Listen to the best highlights from the podcasts you love and dive into the full episode