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 ...

In Paris, not far from the Panthéon, is a crooked little byway once called the Rue des Postes. From that byway last week came two words in a combination new to physicists the world over: artificial ...

Can a person or object exposed to high radioactivity just take a shower with soap and water, or is more needed for decontamination? When you purchase through links on our site, we may earn an ...