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 ...

Every year, doctors get better tools to fight cancer. Engineered cancer-killing cells, immunotherapies, targeted drugs, and more are helping clinicians cure more patients. Increasingly, though, ...

Q&A with Dr. Preetha Rajaraman, New Vice Chair for the Radiation Effects Research Foundation in Hiroshima and Nagasaki, Japan In August 1945, the United States detonated two atomic bombs over the ...

When nuclear accidents happen, many people imagine radiation spreading everywhere and lasting forever. The reality is more complex. Radioactive materials move, change and sometimes disappear faster ...