Difference between revisions of "Lines of longitude"
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| − | Imaginary lines that run north and south across the earth.<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> | + | 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. <ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> |
==References== | ==References== | ||
<references/> | <references/> | ||
Revision as of 15:23, March 26, 2007
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