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 ...

Add Yahoo as a preferred source to see more of our stories on Google. When most of us think of radioactivity, we picture abandoned nuclear test sites or disaster zones like Chernobyl. But the ...

A New Science. The beginnings. The setting ; Rays and radiation ; Becquerel's discovery -- The Curies. Maria Skłodowska ; A consequential meeting ; New elements! -- Rutherford, Soddy, particles, and ...

In this lesson, students will simulate the randomness of decay in radioactive atoms and visualize the half-life of a sample radioactive element. This lesson can be completed in two (2) 45-minute class ...

Many people are frightened of radiation, thinking of it as an invisible, man-made and deadly force, and this fear often underpins opposition to nuclear power. In fact, most radiation is natural and ...

When physics education researcher Andy Johnson first taught at the college level, he worked hard to find just the right way to explain physics concepts to his students. He noticed, though, that his ...

Radioactivity is defined as the release of energy by means of radiation in atoms. It was first discovered in the year 1896 by Henri Becquerel, who carried out further experiments in conjunction with ...

The simple mention of the word “radiation” often evokes fear in people. For others, it’s fun to think a little exposure to radiation could turn you into the next superhero, just like the Hulk. But is ...