There is radium in the earth, and radium in disintegrating gives out heat. Therefore a once molten globe will cool down more slowly than if it contained no such independent source of heat.

Radium is a chemical element, and Radium 226 is a variant of that element. Radium can occur in nature, but the chances of anyone running across it in everyday life are slim.

“Radium Girls” is the true story of a group of women who worked for the U.S. Radium Corporation in the 1930s. The women want to learn what is causing the mysterious illnesses that is killing them.

It’s taken them nearly a century, but New Jersey’s "Radium Girls” will have their story told on the big screen. A group of young women who were pioneers in the fight for workplace safety and ...