Earth Rotation Summary

                                                       EARTH ROTATION 

                     Summary:Earth rotation is the rotation of the strong earth around it's own axis. Tilt is not a straight line on the earth. As a viewed from the north star Polaris, the turns around counter clock-wish. The earth rotation length is rotates once in about 24 hours. A Hemisphere  half of earth we have northern and southern. A pendulum is ball is round on the earth same direction.