Monday, October 15, 2007

An important difference

Year. Unit of time equal to the time taken by the earth to complete one orbit of the sun.

Light year. Unit of distance equal to the distance travelled by a photon of light in one of our Earth years.

So one is a unit of time and the other is a unit of distance and if you refer to a light year when attempting to describe a eon or other arbitrary unit of time, I will assume you're an idiot.

1 comment:

Anonymous said...

I'd assume the same of anyone that confused "difference" and "distance" ;)