Electromagnetic Wave
An electromagnetic wave is a type of wave that is created by the movement of electric and magnetic fields. These waves are able to travel through a vacuum, such as space, and do not require a medium to propagate. Electromagnetic waves are used extensively in maritime communication and navigation systems, including radar and radio communication. They are also used in sonar systems to detect underwater objects and in satellite communication systems to transmit data over long distances. The speed of electromagnetic waves in a vacuum is constant and is known as the speed of light.
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