The Syracusan Mathematician Who Ran Naked Through the Streets in About 250 BCE Shouting Eureka After Working Out the Principle of Displacement in His Bath
Archimedes was asked by King Hiero II of Syracuse to determine whether a goldsmith had fraudulently substituted silver for some of the gold in a royal crown. The principle of displacement — that a submerged body displaces a volume of water equal to its own volume — occurred to Archimedes in the public bath. He reportedly ran home shouting "Eureka!" without dressing. The first surviving record of the story is Vitruvius, two centuries later.
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