An electromagnetic field (EMF) is an area of moving electrical charges. Some EMFs, especially those involving ionizing radiation, can be harmful. For most people, exposure to EMFs occurs on a daily ...

The ionizing radiation symbol, featuring three curved blades emanating from a central point, has been used since 1946 to warn workers, scientists and the public of the presence of radioactive material ...

Radiation is energy that moves from one place to another in a form that can be described as waves or particles. We are exposed to radiation in our everyday life. Some of the most familiar sources of ...

Written by Prof. Renald Blundell and Dr Jean Claude Grech Ionizing radiation is a form of energy released by atoms in the form of electromagnetic waves such as gamma, x-rays or particles such as ...

CT scans diagnose afflictions from tumors to kidney stones to life-threatening diseases and injuries, such as aneurysms and blood clots leading to stroke. But the radiation emitted by this essential ...