On this week's episode of our YouTube show, guest host Derek Muller of Veritasium looks at unintended discoveries such as the pacemaker, Post-it Notes, and Viagra.
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Editor-in-Chief, Digital for mental_floss. Nerdy dad to three little girls. Wearing blue glasses all of a sudden.
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Only two people remain who are fluent in Ayapaneco—but they refuse to talk to each other.