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| * In ], an ''']''' is a ] that rotates on an ] that is displaced from the focus of the circle described by the wheel —in other words, a mechanical motion that can operate either as a ] or a ], depending upon how it is driven. | * In ], an ''']''' is a ] that rotates on an ] that is displaced from the focus of the circle described by the wheel —in other words, a mechanical motion that can operate either as a ] or a ], depending upon how it is driven. | ||
| * In sport, ''']''' are those exercise movements involving the lengthening of muscle fibers. | * In sport, ''']''' are those exercise movements involving the lengthening of muscle fibers. | ||
| * In popular usage, ''']''' refers to unusual or odd ] on the part of a person, as opposed to being "]". There is a saying that "If you're rich, you're eccentric; if you're poor, you're crazy." See also ]. | * In popular usage, ''']''' refers to unusual or odd ] on the part of a person, as opposed to being "]". There is a saying that "If you're rich, you're eccentric; if you're poor, you're crazy." See also ]. | ||
| {{disambig}} | {{disambig}} | ||
Revision as of 12:08, 21 February 2006
Eccentric is from the Greek for out of the centre, as opposed to concentric, in the centre.
- In mathematics, eccentricity is a parameter associated with every conic section. It can be thought of as a measure of how much the conic section deviates from being circular.
- For the eccentricity of a vertex in a graph, see Distance (graph theory)
- In astrodynamics, the eccentricity of an orbit can be calculated from orbital state vectors as an absolute value of eccentricity vector or using other methods based on orbital energy and angular momentum.
- In mechanical engineering, an eccentric is a wheel that rotates on an axle that is displaced from the focus of the circle described by the wheel —in other words, a mechanical motion that can operate either as a cam or a crank, depending upon how it is driven.
- In sport, eccentric movements are those exercise movements involving the lengthening of muscle fibers.
- In popular usage, eccentricity refers to unusual or odd behaviour on the part of a person, as opposed to being "normal". There is a saying that "If you're rich, you're eccentric; if you're poor, you're crazy." See also List of people widely considered eccentric.
This disambiguation page lists articles associated with the title Eccentricity.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: