ABSTRACT
This chapter presents the principles, types, and applications of shadows. It discusses Solar and lunar eclipses. A light shadow occurs in the universe when solar and lunar eclipses occur by a similar formation of shadows. Shadows are produced when objects are exposed to a light source or natural light. A shadow is also cast by light that comes from a point source, which gives parallel light rays. Since light cannot pass through an opaque object, a shadow will be produced in space behind the object. The shape of the shadow is proportional to the shape of the object. One consequence of the Moon’s orbit around the Earth is that the Moon can shadow the Sun’s light as viewed from the Earth, or when the Moon passes through the shadow cast by the Earth. The shadow’s location can be figured out by drawing straight lines from the point source to the edge of the object and continuing them to the screen.
