oi' radium destroy the validity of the older thermal arguments, but also it led directly to the elaboration of a new and more refined method. Every radio-active mineral may be regarded as a self ...

THE source from which radium is obtained is the mineral pitchblende. This mineral occurs in veins, like the majority of useful metals; I may refer particularly to the mineral veins of Cornwall ...

With all the talk of nuclear power plants and storing spent fuel rods in Northwest Colorado, I thought it would be good to ...

One in four Michigan homes has high levels of radon, according to the Michigan Department of Environment, Great La ...

Radium was isolated while the Curies were studying the mineral pitchblende, revealing the element’s unique radioactive properties. • Their work not only earned them international acclaim ...