I understand why our planet orbits the sun, but I'm not sure why it spins.
2006-12-19 15:42:55 · 7 answers · asked by transfusionsb 3 in Science & Mathematics ➔ Astronomy & Space
All objects of this universe moves. As our earth started going round the sun for some reason, it should have started rotating. All movements and even rotations are relative. This is the nature of the universe. I think we cannot find an object which is motionless.
2006-12-19 17:55:10 · answer #1 · answered by natanan_56 2 · 1⤊ 0⤋
Two answers. Before the big bang we were all (the entire universe) squished inside a very tiny ball that had almost infinite mass that was spinning very, very fast. Suddenly the ball decided to blow up. After the initial confusion dust particles decided to gather together because of the force of gravity. Creating new planets, stars and galaxies. In theory all rotating in the same plane, in the same direction, retaining this conservation of rotational momentum. Over time the rate of spin will decrease, but the direction will not change.
This answers the question of why the dinosaurs died. Millions of years ago the earth was spinning much faster than it is today. Dinosaurs were shot into outer space by the earth's rotation. No one knows why some planets and galaxies spin in a disorderly fashion, sometimes even backward.
Another theory is that we were created.
2006-12-20 00:47:59 · answer #2 · answered by ozywadle 3 · 0⤊ 1⤋
Initial 'enertial' force during the formation of the solar system. Think of a pitcher's curve ball, the chance of a dead center "pitch" or force would be astronomical (pardon the pun). The collision with other bodies would also alter its spin. Gravity keeps us in the rotation. Some theorize the 'enclosed vault' hypotheses, with the earth's molten core have an effect on our spin.
2006-12-20 00:50:20 · answer #3 · answered by Its not me Its u 7 · 1⤊ 0⤋
Most of the spin is left over from the angular momentum of the material that formed it. A large glancing collision is also believed to have form the moon, and would have contributed.
2006-12-20 00:38:31 · answer #4 · answered by ZeedoT 3 · 1⤊ 0⤋
The magma inside of the earth is still spinning. the interior mantle of the earth is pulled along with with in a rotating motion. Put a rubber ball in a bucket of water. spin it. You'll notice that the water touching the ball wil be turning also.
2006-12-19 23:49:08 · answer #5 · answered by Haven17 5 · 1⤊ 1⤋
A collision many millions of years ago that hit the earth on its axis slightly un- horizontally, which actually formed the moon.
2006-12-20 00:06:55 · answer #6 · answered by Anonymous · 1⤊ 1⤋
because not only does GOD play dice with the universe, HE cheats.
But after all HE is GOD, and i am sure HE has specific reasons for all of HIS actions.
2006-12-20 01:31:27 · answer #7 · answered by Anonymous · 0⤊ 1⤋