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What Connects Bones, Bird Poop, and Toxic Green Slime? Hint: Without It, Half of Us Wouldn't Be Alive Today

Gastropod

CHAPTER

The Devil's Element

In the 1600s, people thought you could turn things like iron and copper into gold. Henig Brandt was convinced he could make a Philosopher's Stone out of human materials. But it turned out that urine couldn't really turn anything gold other than a snowbank.

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