Abscess An abscess is has several causes and can appear o...learn more >>. Breast Cancer Breast cancer is the second leading cause o...learn more >>. Cancer of the Mouth and Throat Cancer of the mouth and throat may look like an ulcer or a sore on the tongue, lips, inside lining of the cheeks, and other structures.
Electromagnetic radiation is the consequence of this - the fields move with the speed of light and 'radiate' from a source. I'm not sure what you mean by 'Like what type of radiation are they talking about'. Anything that is radiated, that emanates from an object, is radiation. It's nothing to do with radioactivity - well, gamma is a specific type of electromagneitc radiation, but alpha and beta are not. The electromagnetic spectrum is the combination of all types of electromagnetic radiation. We artificially divide the spectrum up into categories based on the effects of the radiation and the causes of the radiation, but in essence there's not much difference between a low-frequency radio wave and a high-frequency gamma ray, apart from the frequency.
Radiation is the emission (sending out) of energy from any source. There are many types of radiation. Ultraviolet (UV) radiation is a form of electromagnetic radiation. The main source of UV radiation (rays) is the sun, although it can also come from man-made sources such as tanning beds and welding torches.Radiation exists across a spectrum from very high-energy (high-frequency) radiation â like x-rays and gamma rays â to very low-energy (low-frequency) radiation â like radio waves.he main source of UV radiation (rays) is the sun, although it can also come from man-made sources such as tanning beds and welding torches. Radiation exists across a spectrum from very high-energy (high-frequency) radiation â like x-rays and gamma rays â to very low-energy (low-frequency) radiation â like radio waves.