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Frequency is the measurement of the number of times that a repeated event occurs per unit of time. It is also defined as the rate of change of phase of a sinusoidal waveform.
Measurement
To calculate the frequency of an event, the number of occurrences of the event within a fixed time interval are counted, and then divided by the length of the time interval.In SI units, the result is measured in hertz (Hz), named after the German physicist Heinrich Rudolf Hertz. 1 Hz means that an event repeats once per second, 2 Hz is twice per second, and so on. This unit was originally called a cycle per second (cps), which is still used sometimes. Other units that are used to measure frequency include revolutions per minute (rpm) and radians per second (rad/s). Heart rate and musical tempo are measured in beats per minute (BPM).
More on [ Frequency ]
http://twitpic.com/vi2eu Conversation overheard on the VHF Guard (emergency) frequency 121.5 MHz
twip2 (Tim Sweeney) Sun, 27 Dec 2009 22:11:00 -0000
http://twitpic.com/vi2eu Conversation overheard on the VHF Guard (emergency) frequency 121.5 MHz
@HONEYdotCOM frequency tonite?
KaePe3 (KP -- Mas No Say!) Sun, 27 Dec 2009 22:10:38 -0000
@HONEYdotCOM frequency tonite?
im in themiddle of the street with twobottles onmy finger saying warriors comeout to playeeeeyayeeeeeeyayyyyyyyy!!! Camera action Frequency
RahCorp (RaH) Sun, 27 Dec 2009 22:09:33 -0000
im in themiddle of the street with twobottles onmy finger saying warriors comeout to playeeeeyayeeeeeeyayyyyyyyy!!! Camera action Frequency
RT @alexhutton: Nate Silver does the frequency of Terrorist Actions on air travel: http://bit.ly/4nR3eS
treyford (Trey) Sun, 27 Dec 2009 22:09:20 -0000
RT @alexhutton: Nate Silver does the frequency of Terrorist Actions on air travel: http://bit.ly/4nR3eS
THE SUNDAY RAW CHRISTMAS EXHALE PARTY***FREQUENCY NITE CLUB IS THE PLACE TO BE***296 RICHMOND ST.***$5 GUEST LIST BEFORE 11:30***
mccrazychris (Crazy Chris) Sun, 27 Dec 2009 22:08:01 -0000
THE SUNDAY RAW CHRISTMAS EXHALE PARTY***FREQUENCY NITE CLUB IS THE PLACE TO BE***296 RICHMOND ST.***$5 GUEST LIST BEFORE 11:30***
Double post frequency, increase blog traffic by 30% in one week? http://bit.ly/6v6lIL
juhotunkelo (Juho Tunkelo) Sun, 27 Dec 2009 22:07:47 -0000
Double post frequency, increase blog traffic by 30% in one week? http://bit.ly/6v6lIL
All-Reviews.com - Frequency (2000) - A collection of reviews and other information about the film.
Meta Description: [ Reviews of the movie Frequency, starring Dennis Quaid and James Caviezel and directed by Gregory Hoblit ]
Apollo Movie Guide - Frequency - Review, links, and cast information.
Box Office Mojo - Frequency - Box office data since day one.
HARO Online - Frequency - A review of the film by Haro.
IMDb - Frequency (2000) - Cast/credits plus additional information about the film
Meta Description: [ Frequency - Cast, Crew, Reviews, Plot Summary, Comments, Discussion, Taglines, Trailers, Posters, Photos, Showtimes, Link to Official Site, Fan Sites ]
Metacritic.com - Links to reviews on other sites.
PopMatters - Frequency - Review of the film.
Rotten Tomatoes - Frequency (2000) - Reviews and reactions from critics.
Meta Description: [ FREQUENCY reviews from the nation's top critics and audiences. Also includes movie info, trailer, poster, photos, news, articles, and forum. ]
SciFlicks.com - Frequency - Videos, sounds, pictures, quotes, freebies, and links.
Meta Description: [ All about Frequency: movie collectibles (movie, soundtrack, posters, books, auctions) and forum, facts, videos, sounds, pictures, quotes, links and more! ]
Yahoo Movies: Frequency - Greg's preview of the film.
Meta Description: [ Frequency (2000): find the latest news, photos and trailers, as well as local showtimes/dvd info at Yahoo! Movies ]
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