RPM Channels

	RPM Channels Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or with the notation min−1) is a unit of rotational speed or rotational frequency for rotating machines. Standards ISO 80000-3:2019 defines a unit of rotation as the dimensionless unit equal to 1, which it refers to as a revolution, but does not define the revolution as a unit. It defines a unit of rotational frequency equal to s−1. The superseded standard ISO 80000-3:2006 did however state with reference to the unit name 'one', symbol '1', that "The special name revolution, symbol r, for this unit is widely used in specifications on rotating machines." The International System of Units (SI) does not recognize rpm as a unit, and defines the unit of frequency, Hz, as equal to s−1. :\begin 1~&\text &&=& 60~&\text \\ \frac~&\text &&=& 1~&\text \end A corresponding but distinct quantity for describing rotation is angular velocity, for which the SI unit is the rad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Rotational Speed Rotational frequency (also known as rotational speed or rate of rotation) of an object rotating around an axis is the frequency of rotation of the object. Its unit is revolution per minute (rpm), cycle per second (cps), etc. The symbol for rotational frequency is \nu (the Greek lowercase letter nu). Tangential speed ''v'', rotational frequency \nu, and radial distance ''r'', are related by the following equation: :v = 2\pi r\nu :v = r\omega An algebraic rearrangement of this equation allows us to solve for rotational frequency: :\nu = v/2\pi r :\omega = v/r Thus, the tangential speed will be directly proportional to ''r'' when all parts of a system simultaneously have the same ''ω'', as for a wheel, disk, or rigid wand. The direct proportionality of ''v'' to ''r'' is not valid for the planets, because the planets have different rotational frequencies. Rotational frequency can measure, for example, how fast a motor is running. ''Rotational speed'' is sometimes used to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	WFAN (AM) WFAN (660 AM broadcasting, AM) is a commercial radio station licensed to New York City, New York, New York, carrying a sports radio format known as "Sports Radio 66 AM and 101.9 FM" or "The Fan". Owned by Audacy, Inc., the station serves the New York metropolitan area while its 50,000-watt Clear-channel station, clear channel signal can be heard at night throughout much of the eastern United States and Eastern Canada, Canada. WFAN's studios are located in the Hudson Square neighborhood of lower Manhattan and its transmitter is located on High Island (Bronx), High Island in the Bronx. In addition to a standard analog transmission, WFAN is simulcast over WFAN-FM (101.9 FM), and is available online via Audacy. Originally at WEPN (AM), , WFAN was launched on July 1, 1987, as the world’s first radio station to adopt the sports radio format around-the-clock. The format moved to this frequency on October 7, 1988, taking over a facility which signed on in 1922 as WEAF under the auspic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]