Radiation kills cancer, but it also causes cancer. Artificial radioactivity on a grand scale can create clean energy for all, but it can also decimate cities. Irene and Frédéric just wanted to ...

The illustration below shows how a radioactive sample is decaying over time. From the start of timing it takes 2 days for the count to halve from 80 down to 40. It takes another two days for the ...

Radioactivity is a part of our earth - it has existed all along. Naturally occurring radioactive materials are present in its crust, the floors and walls of our homes, schools, or offices and in the ...

Radioactivity is a part of our earth - it has existed all along. Naturally occurring radioactive materials are present in its crust, the floors and walls of our homes, schools, or offices and in the ...

Radiation therapy works by damaging your cancer cells’ DNA, which is the material inside cells that contain their genetic ...

However, as the number of protons increases, more neutrons are needed to keep the nucleus stable. For example lead (lead-206) has 82 protons and has 124 neutrons. If the nucleus has too few ...