Revolutions per minute
Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min) is a measure of the frequency of rotation, specifically the number of rotations around a fixed axis in one minute. It is used as a measure of rotational speed of a mechanical component. In the French language, tr/mn (tours par minute) is the common abbreviation. The German language uses the abbreviation U/min or u/min (Umdrehungen pro Minute).
International System of Units
According to the International System of Units (SI), rpm is not a unit. This is because the word revolution is a semantic annotation rather than a unit. The annotation is instead done as a subscript of the formula sign if needed. Because of the measured physical quantity, the formula sign has to be f for (rotational) frequency and ω or Ω for angular velocity. The corresponding basic SI derived unit is s−1 or Hz. When measuring angular speed, the unit radians per second is used.
Here the sign ↔ (correspondent) is used instead of = (equal). Formally, hertz (Hz) and radian per second (rad/s) are two different names for the same SI unit, s−1. However, they are used for two different but proportional ISQ quantities: frequency and angular frequency (angular speed, magnitude of angular velocity). The conversion between a frequency f (measured in hertz) and an angular velocity ω (measured in radians per second) are:
RPM (disambiguation)
RPM is an abbreviation of revolutions per minute, a measure of rotation frequency.
RPM may also refer to:
Business
Computers
Film and TV
LP record
The LP (long play), or 33 1⁄3 rpm microgroove vinyl record, is a format for phonograph (gramophone) records, an analog sound storage medium. Introduced by Columbia Records in 1948, it was soon adopted as a new standard by the entire record industry. Apart from relatively minor refinements and the important later addition of stereophonic sound capability, it has remained the standard format for vinyl albums.
Format advantages
At the time the LP was introduced, nearly all phonograph records for home use were made of an abrasive (and therefore noisy) shellac compound, employed a much larger groove, and played at approximately 78 revolutions per minute (rpm), limiting the playing time of a 12-inch diameter record to less than five minutes per side. The new product was a 12- or 10-inch (30 or 25 cm) fine-grooved disc made of vinyl and played with a smaller-tipped "microgroove" stylus at a speed of 33 1⁄3 rpm. Each side of a 12-inch LP could play for more than 20 minutes. Only the microgroove standard was truly new, as both vinyl and the 33 1⁄3 rpm speed had been used for special purposes for many years, as well as in one unsuccessful earlier attempt to introduce a long-playing record for home use.
Podcasts:
rpm
ALBUMS
- Ø = { } released:
R.P.M.
ALBUMS
- Beyond the Groove released: 1980
R.P.M.
ALBUMS
- Ratpack v Magika Present Blackmagik – The Old Skool Masters Round 2 released: 1998
- Time Machine released: 1998
- 2000 released: 1996
- Headz 2A released: 1996
- Some Scientific Abstract Type Shit released: 1995
- The Story of MoWax released: 1995
- Headz released: 1994
- Royaltie$ Overdue released: 1994
- Food of My De-Rhythm released: 1993
- Dub Be Good to Me released: 1990
Time Machine
Released 1998- Organ Donor / 357 Magnum Force / The Dream Machine / Away From All of This / In Flux
- Slipper Suite
- Duality / Wild & Crazy (instrumental)
- Rhymes for the Deaf, Dumb and Blind
- 808 Song / Life So Free (Party Rockin' Prods remix) / Only the Strong Survive (Underdog remix) / Tender (The Final Story)
- Intro - Welcome
- Kemuri / OCE 9504 / Lost and Found (S.F.L.) / The Rocking Chair / Field Trippin' / Wildstyle
- Midnight in a Perfect World / Intermission, Part 3 / Organ Donor
- Hardcore Hip-Hop (instrumental)
- Bear Witness
- Meiso (Klub mix) / Funky Granules
- The Dream Machine
- Berry Medatation (The Darker the Berry the Sweeter the Juice mix) / Martian Economics / Cantona Style
- Do You Understand?
- Come On / Desert Song (Fire From Within) / Scraper (Psychonauts remix)
- Firescratch
- Motor Bass Gets Phunked Up (Electrofunk remix)
- Organ Donor / Clubbed to Death (La Funk Mob Variation)
- Ape Shall Never Kill Ape / Ravers Suck Our Sound & Get Fucked
- Melodious Thunk / Sortie Des Ombres / Rock on / Rock On (Nutcracker mix) / Blue Flowers
- 89.9 Megamix
- Intro / Cry
RPM
ALBUMS
- MTV 2002 released: 2002
- Grandes Sucessos released: 2001
- Rádio pirata ao vivo released: 1986
- Revoluções por minuto released: 1985
- Brilhantes released:
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Revoluções Por Minuto
by: RPMSinais de vida no pais vizinho
Eu já não ando mais sozinho
Toca o telefone
Chega um telegrama enfim
Ouvimos qualquer coisa de Brasília
Rumores falam em guerrilha
Foto no jornal
Cadeia nacional
Viola e canto ingênuo do caboclo
Caiu o santo do pau oco
Foge pro riacho
Foge que eu te acho assim
Fulano se atirou da ponte aérea
Não agüentou fila de espera
Apertar os cintos
Preparar para descolar
Nos chegam gritos da ilha do norte
Ensaio pra dança da morte
Tem disco pirata
Tem vídeo cassete até
Agora a China bebe Coca-Cola
Aqui na esquina cheiram cola
Bio-degradante
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