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Old 12-18-2006, 10:25 PM   #33
LateNight
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Quote:
Originally Posted by joepole
Newtonian gravity is, indeed, considered a law, but that doesn't mean it's true, just that it's accepted as correct for most purposes. It certainly doesn't hold up a quantum scales. If it did none of us would be here.
LOL, isn't that where "Dark Matter" comes into play ?

Quote:
In astrophysics, dark matter is matter that does not emit or reflect enough electromagnetic radiation to be detected directly, but whose presence may be inferred from its gravitational effects on visible matter. Among the observed phenomena consistent with the existence of dark matter are the rotational speeds of galaxies and orbital velocities of galaxies in clusters, gravitational lensing of background objects by galaxy clusters such as the Bullet cluster, and the temperature distribution of hot gas in galaxies and clusters of galaxies. Dark matter also plays a central role in structure formation and Big Bang nucleosynthesis, and has measurable effects on the anisotropy of the cosmic microwave background. All these lines of evidence suggest that galaxies, clusters of galaxies, and the universe as a whole contain far more matter than is directly observable, indicating that the remainder is dark.
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