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What is a Negative, or Positive, Frequency? October 2, 2006

Posted by healthyself in Blogroll, Cell phone safety, Definitions, Electrical Wiring, Frequencies, Hz, MHz, Radians, rotation, transmission.
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“The concept of negative and positive frequency can be as simple as a wheel rotating one way or the other way. A signed value of frequency indicates both the rate and direction of rotation. The rate is expressed in units such as revolutions (aka cycles) per second (hertz) or radians/second (where 1 cycle corresponds to 2π radians). By convention, a positive frequency is associated with rotation in the counterclockwise direction, whereas a negative frequency represents rotation in the clockwise direction.”

http://en.wikipedia.org/wiki/Negative_frequency

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