HZ

Hz is the International Standard symbol for Hertz, the unit of frequency

HZ may also stand for:

Hertz

The hertz (symbol Hz) is the unit of frequency in the International System of Units (SI) and is defined as one cycle per second. It is named for Heinrich Rudolf Hertz, the first person 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 and other electronics are driven.

Definition

The hertz is equivalent to cycles per second. In defining the second, the International Committee for Weights and Measures declared that "the standard to be employed is the transition between the hyperfine levels F = 4, M =  0 and F = 3, M = 0 of the ground state 2S_1/2 of the cesium 133 atom, unperturbed by external fields, and that the frequency of this transition is assigned the value 9 192 631 770 hertz" thereby effectively defining the hertz and the second simultaneously.

170 Hz

170 Hz is a Dutch film about the love of two deaf children. Although some dialogues are in Dutch, most of it is in Dutch Sign Language and subtitled. The film was first presented on the Dutch Film Festival in September 2011, and was released theatrically on 1 March 2012. The title refers to the frequency of 170 Hertz, the highest frequency which still can be heard by main character Nick (e.g. the sound of a motor bike).

Prizes

The film has won the Audience Award at the Gouden Kalf Awards 2011. Furthermore, the film was nominated for the "Best Sound Award" and Gaite Jansen for "best actress" at these awards.

Cast

References

External links