Usually, what springs to mind when you think of the world’s most expensive substances are gold, silver, and platinum. However ...

Brazil nuts are among the most radioactive foods available. Their deep-rooted trees absorb radium from the soil, leading to higher concentrations in the nuts themselves. Measurements have shown ...

Take the opening sequence of The Simpsons animated series, for example, where the Homer Simpson, who works in a nuclear power plant, handles a green radioactive substance. This green glow has been ...

Graph of count rate against time It is possible to find out the half-life of a radioactive substance from a graph of the count rate against time. The graph shows the decay curve for a radioactive ...

Tanagura is more than 80 kilometers from the nuclear plant, but in the summer of 2011, high doses of radioactive substances were detected in the area’s wild mushrooms. These days, radioactivity ...