Device for determining distance to and direction of Mecca from any place on Earth, uses Global Positioning System and special software

摘要

Moslems believe that they should face Mecca when praying. The present device determines the distance to and direction of Mecca from any place on Earth. It uses the satellite Global Positioning System and special software. Unlike a magnetic compass which points to magnetic North, the device uses true North to calculate and hence is more accurate than a compass.