Marie Curie tells how she discovered radium - a scientific breakthrough - Click Americana

Radium decomposes at a rate proportional to the quantity of radium present. Suppose it is found that in 25 years approximately 1.1 % of a certain quantity of radium has decomposed. Determine approximately how long it will take for one-half the original amount of radium to decompose. | Numerade

Body found in Flint River

In 1926, radium was celebrated as a miraculous cure, Madame Curie gained worldwide recognition, and luminous watches became a fashionable trend—until the female workers who painted them started to experience a puzzling illness. Inspired by a true story, Radium Girls chronicles the journey of Grace Fryer, a dial painter, as she fights for her day in court. Her primary adversary is her former employer, Arthur Roeder, an idealistic man who grapples with the unsettling possibility that the very elem