Electromagnetic radiation and B fields in EMR are in-phase (see math section below). An important aspect of light's nature is its frequency. The frequency of a wave is its rate of oscillation and is measured in hertz, the SI unit of frequency, where one hertz is equal to one oscillation per second. Light usually has multiple frequencies that sum to form the resultant wave. Different frequencies undergo different angles of refraction, a phenomenon known as dispersion. A wave consists of successive troughs and crests, and the distance between two adjacent crests or troughs is called the wavelength. Waves of the electromagnetic spectrum
This Is the Sound example of what can be made when certain elements from genres collide and risks are taken." All lyrics written by Anna Murphy. All music by Anna Murphy, Ivo Henzi & Merlin Sutter. This Is the Sound This Is the Sound is the first studio album by the Swiss progressive metal band Cellar Darling. It was released on June 30, 2017, by Nuclear Blast. "This Is the Sound" received positive reviews by critics upon release. Writing for "Heavy", Dave Griffiths wrote, "This Is The Sound is a modern day work of art. The three talented musicians behind Cellar Darling have just