Marbury v. Madison (1803) Summary: Marbury v. Madison, 5 U.S. 137, was a U.S. Supreme Court case that established the precedent of judicial review. This judicial review power allows the Supreme Court to invalidate or declare unconstitutional actions or laws created by levels of government. The case surrounds the question of whether or not William Marburyâs right to a commission is valid and if he is due a mandamus from the court.
An electromagnetic (EM) wave is not a sound wave. A sound wave is mechanical energy, and an electromagnetic wave is electromagnetic energy. The EM wave could be a radio or light wave, but in any case, it is composed of moving electric and magnetic fields. This electromagnetic wave can move through air or the vacuum of space, but sound (or any mechanical wave) must have a medium to travel through.
Alternating magnetic and electric fields can propagate according to Maxwell, and there is no reason to believe they need any medium (except maybe analogy with sound). allow me to add to this answer. the previous writer tried describing this in how light may travel as a wave through space, but lets remember that electromagnetic radiation, which is light, has a duel nature as both a wave and a particle either called photons or quanta. photons which are particles can flow through space just ...