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).
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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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