“What makes the earth rotate?

Answer 1

The Monty Pithon had a song "Money makes the world go round"

But since the question is in the astronomy category, perhaps you are after the serious answer. Momentum. The earth condensed from particles at the beginning of the solar system, and all those small rocks were in orbit around the sun, thus had momentum in them. By falling into one another, they gave that momentum to the accumulating mass, which started spinning. Actually, all planets rotate, it is the norm rather than the exception.

Being in space, without anything substantial to slow it down, save from the moon and sun tidal effect, the earth keeps spinning since then.

Answer 2

Inertia. The entire universe rotates as a result of the way the Big Bang went off. That means spin was imparted to every molecule ever created. The earth has simply preserved that spin. If it weren't for the oceans and the molten mantle, it could spin forever. But because the Moon acts as a brake, we'll eventually get longer and longer days until the earth and moon are 'gravitationally locked' to each other. Then both satellites will face each other the same way forever more, until the sun expands into our orbit.

Answer 3

There isn't really an empirical answer to that question. The most immediate answer is that according to Newtonian laws of physics, which work very well in predicting the behavior of physical objects, objects in motion tend to stay in motion unless an outside force acts upon them. So the fact that the earth, a six-sextillion-ton ball of mostly iron, is spinning means it's pretty likely to keep spinning.

What started it spinning? The general thought is that it's left-over rotational energy from the earth's formation out of the dust cloud that formed the sun. God may or may not have had something to do with that, depending on your cosmology.

As it turns out, pretty much every astronomical body you care to name has some rotational velocity. Some even rotate really fast, e.g. quasars, which complete a rotation every few minutes.

Answer 4

The earth has always been rotating since the universe formed. It is slowing down and will eventually come to a stop. Dont panic though it is likely to be a very very long time before it happens.

Answer 5

The magnetism of the energies of the Sun and the Interstellar System that divides the Land in day and night, corresponds the two energies opposes that they are attracted provoking the rotation and translation of the Land. Coforme theories Brazilian of the Tarcísio Brito.

Answer 6

The action of going around the sun makes the earth rotate in the opposite direction to balance out the universe.

Answer 7

Inertia

Answer 8

Theres a big man behind the screen that we think is the sky, turning a handle very fast.

Answer 9

its spin is left over from its construction and every year is getting slightly longer as the Earth is slowing down

Answer 10

the suns gravity is making us rotate with all the other planets