The Earth's axis is an imaginary straight line that passes through the planet Earth and environment which turned in its rotation. Recalling a turns the Earth environment whether in just 24 hours. As an example of the Earth's axis would be line linking the hooves of a world map of those with a planetary ball to give them momentum.
It is an imaginary line that runs from the North Pole to the South Pole and on her land develops its rotational movement, this imaginary line is not perpendicular to the plane of its movement of travel around the Sun but that it has a penchant, already known by the Chinese from the 1,104 year astronomers a. d. C., 23,43 degrees, which makes the rays of the Sun not affect in the same way upon the Earth in its orbit around Sun
