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.
Visible light is the only kind of electromagnetic waves that are visible, however there are 7 types of electromagnetic waves, or we can call them electromagnetic radiations. Rank based on wavelength, from high to low, they are: Radio wave. Microwave.