When the radioactive element radium was discovered, it quickly found its way into many products. One of those was glow-in-the-dark watch and clock faces, which were painted by women who licked their paintbrushes to keep them pointed. This was a deadly mistake. Also learn about the demonstration of 150,000-volt electric chair, Charles Hawker and his high voltage electric chair, the electrifying sermon of George Speake, and the largest chain of retail stores. Retrosponsor: Adam Hats Learn more about your ad choices. Visit megaphone.fm/adchoices