Why eclipses happen?

When the moon passes in front of the sun and blocks it completely an amazing sight. To see total solar eclipse, you have to be in just the right spot on the earth. When you look up in the sky at the sun and the moon, you notice a strange coincidence both look the same size in the sky. Both the sun and the moon look about one-half degree in diameter. Now, they´re not really the same size. The sun´s diameter is actually 400 times the moon´s diameter. But, you must also take into account that the sun is also 400 times further away from the earth, reducing its apparent size to the same as the moon´s. Because of this relationship, when you are standing on the earth, looking up at the two, you must be in a very limited zone to see the moon cover the entire face of the sun. If you were to move a little north, the sun would peak out over the top of the moon; a little south, and the sun shines past the southern limb of the moon. The match is so good that the path of totality is never more than 167 miles in diameter, and is usually less. This means that very few people have seen a total solar eclipse because the shadow only covers a very small area on the earth.

[ Text-sequence taken from the official soulclipse folder ]
[ Link: http://soulclipse.com ]