• Why is Cardboard so strong?

  • Apr 2 2025
  • Duración: 21 m
  • Podcast

Why is Cardboard so strong?

  • Resumen

  • What is cardboard made out of? How was Cardboard invented? Did Olympic Athletes sleep on Cardboard beds? Have you started your FREE TRIAL of Who Smarted?+ for AD FREE listening, an EXTRA episode every week & bonus content? Sign up right in the Apple app, or directly at WhoSmarted.com and find out why more than 1,000 families are LOVING their subscription! Get official Who Smarted? Merch: tee-shirts, mugs, hoodies and more, at Who Smarted?
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