Introduction

Long before the emergence of life on Earth, the Moon has lit the night with a soft reflection of the sun.   Through the course of human history the Moon has inspired myth, philosophy, and logic.   In ancient Greek mythology, the goddess Selene drove the chariot Moon across the sky with moonbeam horses. Aristotle used the curved shadow of the Earth upon the Moon during an eclipse to verify that the Earth was round.  A great advancement in the study of the Moon occurred in 1609 when Galileo Galilei sketched the first details of the surface of the Moon observed with a homemade telescope (Moons and Rings 1991, 10).  The Moon has had an unquestionable influence in understanding the physical premises that our universe is based on.  With the evolution of intellect on the Earth, fundamental principles of the orbit of the Moon have been established. The physical laws that govern the orbit of the Moon about the Earth are kinetic energy, momentum, gravity and angular momentum.