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.
Light is not the only example of an electromagnetic wave. Other electromagnetic waves include the microwaves you use to heat up leftovers for dinner, and the radio waves that are broadcast from radio stations.roperties of electromagnetic waves. Something interesting about light, and electromagnetic waves in general, is that no medium is required for the wave to travel through. Other waves, such as sound waves, can not travel through a vacuum. An electromagnetic wave is perfectly happy to do that.