Monday, January 28, 2013

Prime Meridian

We just learned about the Arctic Ocean

We learned that the middle of the earth halfway between North and South
is called the equator.

If we want to draw a line like that from the top of the map to the bottom,
to split it into East and West we use the Prime Meridian.
prime meridian
(from: wikipedia - prime meridian)

The main location on the map where the prime meridian is marked is a place called
the Royal Observatory Greenwich, in London England.