| Introduction:
As the earth rotates
around its axis, it appears that the sun is moving in
the sky. The apparent movements of the sun in the day
sky has many affects in our environment. One thing that
we have all noticed is the direction and the size of
shadows that change from the morning to the afternoon.
Many scientists have
studied the shadows and have tried to use shadows to
study the earth movements and perform varieties of
calculations.
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