Because radium can be mixed with other elements to make them glow in the dark, clock makers used it to create fluorescent numbers on watch faces and hired young women to perform the delicate task of painting them. In the watch factories of New Jersey, Connecticut, and Illinois, the Radium Girls were trained to lick the tips of their brushes into a fine point before dipping them into pots of radium paint. When the jaws and skeletons of the first girls began to rot and disintegrate, their employers suggested they were suffering from syphilis. A successful lawsuit revealed that their managers had
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