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Essay:Quantifying Order (view source)

Revision as of 15:17, November 14, 2009

1,375 bytes added ,  15:17, November 14, 2009
example of a tightly wound orbit: the advance of the perihelion of Mercury
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*the transmission of light
 
*the transmission of light
 
*the transmission of electromagnetic waves
 
*the transmission of electromagnetic waves
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== Tightly Wound Orbit ==
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The orbit of Mercury provides nature's closest example, both conceptually and spatially, of a highly ordered, nearly perpetual motion machine.  The orbit will not last forever, and it is enlightening to observe and understand signs of degradation in the orbit.
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The advance (or precession<ref>A "precession" is a slow gyration of an axis of rotation such that it traces a cone.</ref>) of the perihelion of Mercury is observed but not predicted by an elementary application of Newtonian mechanics to Mercury and the sun alone.  This provided one of the great mysteries of physics around the turn of the century.  A planet's "perihelion" is the point in its path of orbit that comes closest to the sun.  For Mercury, that point of closest proximity is shifting with each revolution.
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The [[theory of relativity]] developed to explain the then-observed shift in Mercury's perihelion of 43 arc-seconds per century.  Subsequently, however, more accurate measurements with more sophisticated technology have determined this precession to be 55 arc-seconds per century, nearly 30% off the number produced by relativity.  Other sources of the deviation have been suggested by physicists attempting to explain the gap.
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== Wave Functions ==
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== High Concentration of Mass ==
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== Transmission of Light ==
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== Transmission of Electromagnetic Waves ==
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A perpetual ordered system, or a [[perpetual motion machine]], is thought to be impossible by virtue of the [[Second Law of Thermodynamics]].
 
A perpetual ordered system, or a [[perpetual motion machine]], is thought to be impossible by virtue of the [[Second Law of Thermodynamics]].
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