The math is easy. One light year is the distance light travels in a year. The speed of light is 186,282 miles/second, and distance equals speed multiplied by time. So: 186,282 mi/sec x 86,400 sec ...

The correct math on a 42-inch pipeline As a retired teacher of college mathematics, I wish to comment first on comparisons made between the proposed 42-inch Atlantic Coast Pipeline and existing ...