Friday, March 23, 2012
Types Of EMF
EMF is a force created by an electric field. Electric fields are created by charged particulates in motion. It can be derived from a variety of natural sources such as thunderstorms, the Earth’s magnetic field and the solar and lunar cycles and many man-made sources. Light itself is a spectrum of electromagnetic radiation that can be visually detected. EMFs have a very wide range of frequencies from non-ionizing extremely low frequency (wavelengths of some hundreds of metres), to optical range, to ionizing very high-frequency wavelengths. Ionizing radiations such as X-rays and gamma rays possess much higher frequencies and already have documented health effects. The frequencies in question are static fields, electromagnetic fields (EMF) with extremely low frequencies , intermediate frequencies, and radio frequencies. They all belong to what is know as non-ionizing radiation.