Axes
Axes are straight lines that objects rotate around. Think of a wheel on a bicycle. The wheel rotates about the axis through the center of the wheel. The Earth doesn't have a physical axis that it rotates around, but it does have an imaginary rotation axis. more
The ecliptic is the great circle of the celestial sphere which is cut by the plane of the earth's orbit. 2. A great circle inscribed on a terrestrial globe inclined at an approximate angle of 23°26′ to the equator and representing the apparent motion of the sun in relation to the earth during a year.
for gravity page
No comments:
Post a Comment