[dba-Tech] Slow Light

On 24 Nov 2003 at 12:32, Arthur Fuller wrote:

> Really way OT even for this list, but I just had to share it. Light has
> been observed (under special conditions) to travel as slowly as 91 m/s
> (meters per second). The phenomenon of slow light was discovered several
> years ago but we don't have real-world applications yet. So the next
> time some smart ass says the speed of light is 186 miles/second you can
> reply, "It depends." :-)
> 

That's always been the case. 

As an example, light travelling through a diamond travels at less 
than half the speed it does in a vacuum. (The Refractive Index of 
diamond is 2.42).




 
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