# hertz

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## hertz

(Hz) [herts]
the SI unit of frequency, equal to one cycle per second.

## Hertz

(hārts),
Heinrich R., German physicist, 1857-1894. See: hertz, hertzian experiments.

## hertz (Hz),

(herts),
A unit of measure of frequency equivalent to 1 cycle/sec; this term should not be used for radial (circular) frequency or for angular velocity, in which cases the term sec-1 should be used.
[H.R. Hertz]

## hertz

The standard SI (International System) unit of frequency, which is equal to 1 cycle/second.

## hertz

(Hz) (hĕrts)
A unit of sound or alternating current frequency, 1 Hz is equivalent to 1 cycle per second.
[H.R. Hertz]

## hertz (Hz)

the SI UNIT of frequency measuring cycles per second.

## Hertz,

Heinrich R., German physicist, 1857-1894.
hertz - a unit of frequency equivalent to 1 cycle per second.
hertzian experiments - experiments demonstrating that electromagnetic induction is propagated in waves analogous to waves of light but not affecting the retina.

## hertz

A unit of frequency equal to one cycle per second. Symbol: Hz.
References in periodicals archive ?
Tables 1, thus confirms our assertion above that there is an increase in the frequency of light when the source or emitter is further away from the body than the receiver.
The second is a temporal phase modulator, which modifies the optical frequency of light depending on when the wave passes through the device.
The scientists measured the frequency of light emitted as the electrons returned to a lower energy state.
That's better than a wristwatch but about a hundred millionth as precise as today's best atomic clocks, which count the frequency of light emissions from an atom as its electrons release small bursts of energy.
The distance between the mirrors in this "optical cavity" determines the frequency of light that will resonate--just as the length of a guitar string determines its pitch.
New kinds of metamaterials are being designed with a specific orientation, or chirality, to put an unnatural twist on light, even with T-rays, a frequency of light that has been difficult to harness.
The researchers demonstrated that they could custom design a crystal to double the frequency of light passing through it.
For example, such interactions cause the frequency of light lasers to double when they pass through certain crystals--a property now being exploited by laser pointer makers to bring green-light pointers to market.
Among the most intriguing--and perhaps most useful--materials of this sort are those exhibiting nonlinear optical behavior that increases the frequency of light passing through them.
Because relativistic motion alters the frequency of light, approaching objects actually would appear more blue (signifying higher frequency) and receding objects more red.
Such waves could shift the frequency of light coming from pulsars and other astronomical objects, complicating the interpretation of such observations.
Chemists quickly grasped the idea of using a laser to hit the molecule with one frequency of light, exciting one specific chemical bond in the molecule until it broke, leaving it open to react with another molecule but leaving the other bonds untouched.

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