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The Periodic Table Is Turning 150. Please Clap.

In 1669, Hennig Brand, a German merchant and alchemist, tried a novel experiment he hoped would yield the mythical “philosopher’s stone,” a way to spin base metals into gold. His exact formula is lost to history, but we know he heated urine in a retort, or glass chamber, until the vessel glowed and the dripping liquid burst into flames. Urine, it turned out, wasn’t a source of gold. It was a source of phosphorus, a previously unknown element and the first one isolated in the laboratory.

From the Fall 2019 issue of California.
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