It wasn't me. You can't prove anything.


2012-03-17

Speed of light

Once we do the math and figure out just how slow light travels, the universe doesn't seem so open and easy to cross any more. Yes, light travels about a foot at a nanosecond. That is 1 gigahertz.

The speed of light is roughly 300,000 km/s.
300,000 km/second
300,000,000,000 mm/s

A nanosecond is 1/1,000,000,000 of a second.

300,000,000,000 mm/s
-------------------- = 300 mm/nanosecond (almost 1 foot)
1,000,000,000

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