Why don't we get an eclipse every month? *

ANSWER:

We don't get an eclipse all period because the Moon's revolution is turned at  approximately 5∘ to the ecliptic.

EXPLANATION:

If the Moon's revolution was in the equal level as the Earth's we would encounter two  eclipses all period. A solar eclipse would appear every new moon also a lunar eclipse  would appear every full moon. As the Moon's orbit is turned at 5∘ to the ecliptic, an  eclipse can simply happen when the Moon is near one of its links which are the points  where the Earth and Moon circles intersect. The line joining the links also has to be  facing towards the Sun.