In her book, The Alchemy of Us: How Humans and Matter Transformed One Another, materials scientist Ainissa Ramirez explores how eight inventions—clocks, steel rails, copper communication cables, photographic film, light bulbs, hard disks, scientific labware, and silicon chips—shaped human society. In this episode, we explore the importance of materials and learn about the unsung heroes who crafted them into tools we use every day.

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