One way to recognize the contribution of a person to a field of endeavor is to name something after him or her. Heinrich Hertz demonstrated the existence of electromagnetic waves in the late 1800s.
The term "hertz" (abbreviated Hz) was adopted internationally in 1960, and by the 1970s had largely replaced "cycles per second" as the unit of frequency. One cycle per second (cps) is the same as one hertz (Hz). They are two ways to designate the frequency.
You need to be a little careful with measures of rotation speed. Periodically varying angles are typically measured in radians per second, rather than Hz. One complete revolution is 2Pi radians. For example, 60 revolutions per minute (RPM) is ≈ 6.283 rad/sec. It is also one revolution per second (rps).
If a revolving object creates a periodic signal as a consequence of its rotational motion, the signal will be measured in Hz, while the speed of revolution may be measured in revolutions per second.
The term "hertz" (abbreviated Hz) was adopted internationally in 1960, and by the 1970s had largely replaced "cycles per second" as the unit of frequency. One cycle per second (cps) is the same as one hertz (Hz). They are two ways to designate the frequency.
You need to be a little careful with measures of rotation speed. Periodically varying angles are typically measured in radians per second, rather than Hz. One complete revolution is 2Pi radians. For example, 60 revolutions per minute (RPM) is ≈ 6.283 rad/sec. It is also one revolution per second (rps).
If a revolving object creates a periodic signal as a consequence of its rotational motion, the signal will be measured in Hz, while the speed of revolution may be measured in revolutions per second.
