Why Itches Spread, Ancient Vending Machine, and Not Realizing When Your Beliefs Change

Learn about the world’s first vending machine that was invented nearly 2,000 years ago; why scratching an itch can make it spread; and, why you probably don’t realize it when your beliefs change.

In this podcast, Cody Gough and Ashley Hamer discuss the following stories from Curiosity.com to help you get smarter and learn something new in just a few minutes:

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