Why is Cardboard so strong?
Apr 2 2025
Length: 21 mins
Podcast

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Why is Cardboard so strong?

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Summary
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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