Lines of longitude
This is an old revision of this page, as edited by ColemanFrancis (talk | contribs) at 15:23, March 26, 2007. It may differ significantly from current revision.
Imaginary lines that run north and south across the earth. They are used to measure east-west orientation, relative to a "prime meridian" set at 0 degrees. While in the past many meridians have been used, since 1884 the Greenwich Meridian has become the universal standard. [1]
References
- ↑ Wile, Dr. Jay L. Exploring Creation With Physical Science. Apologia Educational Ministries, Inc. 1999, 2000