Confusion and/or difficulty speaking clearly or coherently (not making any sense). 1  Fainting â Syncope. 2  Fainting from a heart rhythm disorder is more likely to happen suddenly and without warning than Fainting from other causes, such as dehydration or low blood sugar.
Radio waves, gamma-rays, visible light, and all the other parts of the electromagnetic spectrum are electromagnetic radiation. Electromagnetic radiation can be described in terms of a stream of mass-less particles, called photons, each traveling in a wave-like pattern at the speed of light.
electromagnetic wave-radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge. electromagnetic radiation, nonparticulate radiation. photon-a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle.