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. By Christopher F.

Most people interpret radiation as a bad thing—but it isn’t always. In fact, radiation is a very normal phenomenon. For now, let’s just say that radiation is when an object produces energy. When a ...

Radioactive sources contain radioactive material of a particular radionuclide (an unstable form of an element emitting radiation), which can vary based on the application for which the source was ...

Every year, millions of shipments of radioactive material are transported by land, air and sea. These materials are crucial for medicine, industry, research, agriculture and energy production. Because ...

The element radium can be found in extremely tiny amounts in the Earth’s crust and oceans, and in its pure form it is a soft silvery metal. To an untrained eye, a small piece of radium may look like a ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. “What is radium and why is it dangerous?” – ...

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 ...

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 ...

The U.S. has embarked on the largest and most expensive nuclear build-out ever. The U.S. military says it is necessary to replace an aging nuclear arsenal. But critics fear the risks. This article is ...