2006-09-27 20:19:06 · 6 answers · asked by sara2005_unique 1 in Science & Mathematics ➔ Astronomy & Space
Over the milions and millions of years when the Solar System formed, particles, asteroids, and comets came together by gravitational force to form the planets. Each object hit the central mass of a forming planet, changing its orbit and revolution period. The net effect is the spin we have today.
Earth's axis is tilted at 23.4 degrees from a line perpendicular to the plane of its rotation (which is why you see globes tilted the way they are). Uranus, on the other hand, has its rotational axis tilted at 97.8 degrees! It spins more like a wheel than a top.
2006-09-27 22:08:32 · answer #1 · answered by i_sivan 2 · 0⤊ 0⤋
It revolves around itself a full rotation aprox. 24hours. It has a 23 1/2 tilt I believe. It revolves arond the sun every 365 and 1/4 days or that many full Earth rotations. I am guesing that the rotation around the sun creates a gravitational pull that rotates the Earth in the same manner that it already does. Like it rotates around the sun so it has a counter rotation of sorts. I want to know about the tilt as it is almost the same as a full rotation itself.
2006-09-28 03:26:31 · answer #2 · answered by Thin King 3 · 0⤊ 0⤋
The short answer is 'because there is nothing to stop it doing that' . The earth does rotate around it's axis, there is a lot of kinetic energy tied up in the rotation of such a huge amount of inertia, part of that energy is slowly being transferred to heat by coupling into the tides, part is being transferred to the moon by differential effects of tidal bulges. Compared to the rotational kinetic energy that is already there these are small effects and it will be a very long time before the rotation of the earth slows down much at all.
2006-09-28 05:18:22 · answer #3 · answered by Anonymous · 0⤊ 0⤋
imagine stirring a liquid..the way the liquid converges in the centre thats the way the core of every heavenly body is formed.gradually it gives rise to the spinning core..all the heavenly bodies planets,stars,galaxies rotate..due to the same phenomenon...earth even has third motion apart from rotation and revolving around the sun..it wobbles on its axis..around 4 degrees...
2006-09-28 08:04:13 · answer #4 · answered by jag 1 · 0⤊ 0⤋
Try sliding a marble along the sticky side of some tape. It is much easier to move the marble by rolling it. The sun's gravity is the sticky side of the tape.
2006-09-28 09:49:04 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Why NOT????
2006-09-28 07:36:27 · answer #6 · answered by UncleGeorge 4 · 0⤊ 0⤋