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.
All types of electromagnetic radiation, including visible light, are transverse waves waves. In transverse waves the vibrations are at right angles to the direction of travel, as seen in the animation below of a wave sent down a piece of string.The hand moves up and down, as does each part of the string.ll types of electromagnetic radiation, including visible light, are transverse waves waves. In transverse waves the vibrations are at right angles to the direction of travel, as seen in the animation below of a wave sent down a piece of string. The hand moves up and down, as does each part of the string.