Re: Is the Speed of Light Variable?

kashe_at_sonic.net
Date: 08/01/04 

Date: Sun, 01 Aug 2004 05:21:07 GMT

On 01 Aug 2004 04:06:19 GMT, peterwoj@aol.com (PETERWOJ) wrote:

>Speed of light is constant in empty space. I think it may vary when traveling
>in different medium like glass or water.

        Hence refraction.

> If speed of light was variable no GPS
>would be able to pinpoint it's location.

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