About World Globes

Equator:  Imaginary line running east and west around the exact middle of the earth.

Prime Meridian:  Imaginary line running from pole to pole and passing through
                         Greenwich, England, home of the Royal Greenwich Observatory.

Zero Point:  The equator and the prime meridian intersect at point “0″.  This is
                   where all numbering starts for longitude and latitude lines.

Latitude:  Imaginary lines running around the globe parallel to the equator at 10 or 15-degree increments.

Longitude:  Imaginary lines running from pole to pole numbered in 15-degree increments
                 from the Prime Meridian.

23.5 Degrees:  The angle of the Earth’s tilt as it flies through space.  Most 
                      world globes are made to reflect this angle.

Meridian:  A full- or semi-circle metal arc used to hold the world globe in place.  Meridians
                are generally numbered in degrees from 0 degree at the equator to 90 degrees
                at either pole.

Time Dial:  If it is noon where you are, turn the time dial so that noon faces your 
                 global location.  The other numbers on the dial now show the time in the
                 rest of the world.

Information Courtesy of Replogle Globes.