When the city of Guanajuato instituted a grave tax, they included some harsh penalties for those who couldn't pay -- if you went more than three years without paying the tax on your loved one's resting place, the body would be disinterred and taken from its grave. As gravediggers began removing corpses, they discovered something bizarre: Many of the bodies had somehow naturally mummified. Word of the Mummies of Guanajuato quickly spread, and the gravediggers starting charging locals to take a quick peek at the remains. This was only the beginning. Join Ben and Noel as they explore the strange tale of the Mummies of Guanajuato.

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Today, we all generally understand that the brain is responsible for what we call personality and thought -- yet this wasn't always the case. Once humans figured out the brain was more than a weird lump in the skull, it took centuries of trial and error, along with quack science, to really understand how it works. In today's episode, the guys welcome back special guest Jorge Cham, the creator of ScienceStuff, to lear more about the ridiculous history of brain science.

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What is the universe? Where did it come from, and what happens to it in the future? Humanity has wrestled with these questions since the dawn of civilization -- and though we've made a lot of progress, there's still much more to learn. In today's episode, the guys join special guest Jorge Cham, the polymath, engineer, author, cartoonist, and creator of the hit new show ScienceStuff as he explains the vast (and often ridiculous) history of humans attempting to understand the universe.

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