Historical Applications
Some of the few practical uses of radium are derived from its radioactive properties. More recently discovered radioisotopes, such as 60Co and 137Cs, are replacing radium in even these limited uses because several of these isotopes are more powerful emitters, safer to handle, and available in more concentrated form.
Read more about this topic: Radium
Famous quotes containing the word historical:
“Religion means goal and way, politics implies end and means. The political end is recognizable by the fact that it may be attained—in success—and its attainment is historically recorded. The religious goal remains, even in man’s highest experiences, that which simply provides direction on the mortal way; it never enters into historical consummation.”
—Martin Buber (1878–1965)