Invention Playlist 3: Ketchup

 

You love it. You put it on everything. But where does ketchup come from? In this episode of Invention, Robert and Joe explore the mysterious origins of everyone’s favorite sweet red sauce -- and consider the jaw-dropping fact that ketchup isn’t always red and isn’t always made from tomatoes.

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Stuff To Blow Your Mind

Deep in the back of your mind, you’ve always had the feeling that there’s something strange about re… 

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