Hertz, frequency

The hertz (symbol Hz) is the unit of frequency and is defined as one cycle per Terran second. It is named for Heinrich Rudolf Hertz, the first person on Terra to provide conclusive proof of the existence of electromagnetic waves.

One of the unit's most common uses is in the description of sine waves and musical tones, particularly those used in radio and other audio-related applications. It is also used to describe the speeds at which computers, computronics and electronics are driven.