In this lesson, students will investigate the nature of radioactivity and the effect of both distance and shielding materials on different radioactive sources using a Geiger-Muller tube with a counter ...

Radiation is everywhere; living on this planet means being exposed to natural radiation. Artificial radiation has been used successfully in the last centuries for medical diagnosis and treatment of ...

Teaching Radioactivity and Half Life Background: The nuclei of certain atoms are stable and under ordinary circumstances, stable nuclei do not undergo change. The nuclei of other atoms are unstable.

Hence, just as the spontaneous radioactivity of radium turns it finally into lead, the end-product of boron’s artificial radioactivity is carbon.

Some wild boar hunted in German forests have radiation levels that exceed the limit deemed safe for human consumption. New research suggests that it’s not just because of Chernobyl.