Re: FAA SOCIAL ENGINEERING SCAMS AND EMPIRES

Steven P. McNicoll wrote:
"STOP-THE-IRS-SCAM" <NOIRS@xxxxxxx> wrote in message news:2NF1j.192$Mc.60@xxxxxxxxxxxxxxx
no, read it the site has been around for years


I imagine the OP has also been around for years.



While the speed of light in a vacuum is a well-known physical constant, when light is subject to physical conditions other than a vacuum, the effective velocity of the electromagnetic waves that make up the light can change. The most well-known instance of this is when light is transmitted through a refractive material that has an electric permittivity and a magnetic permeability different from a vacuum. When this occurs the index of refraction can be determined for a material as follows:

n = c / v

where n is the index of refraction, c is the speed of light in a vacuum, and v is the apparent speed of light through the material. As the index of refraction increases, the observed speed of light in the medium decreases. Theoretically, there is no limit to the index of refraction, and it is possible to obtain values for n that approach infinity. When this happens, the speed of light in the material becomes effectively equal to zero, and light has "stopped moving".
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