Rotation of the earth

Stars made themselves by gathering space dust. You might know it but do you know why the stars rotate?  In this universe, there is no static object perfectly. Human, stones, the earth, even the central of our solar system, the sun is moving with very high kinetic energy. Thus most of researchers believe that the origin of cosmos was high energy block, Big Bang.

 The process of fixed star made is about those that at first, space dusts called molecular gas were gathered by gravity, rubbed each other and its center become high temperature and pressure, then it began the nuclear reaction. But it gathered not all of nearly dusts, the rests, attracted by the fixed star, go round like a disk. Planets are guessed to appear from this disk. The process of planets made is like this that the small planets composed of the dusts go space at random, they become along with when some of those bump and bigger and more massive. The progress of the stars weren`t fare because the more massive or big stars have the more chance to bump other ones. Guess the situation that there are some ping pong balls and a basketball in the classroom, where is it that they seem to bump more frequently each other? Probably it`s around the basketball rather than ping pong balls. Add more, scale of stars let the effect of gravity valid. Thus bigger ones at the first of being made stars have more chance to be big. 

By the way, the reason of rotation of the earth is in this process. As I said, space dusts became to stars. Until this far, stars are forced each other by gravity and it`s only force in space, this fact let the law of momentum preservation valid. Therefore partly the momentum of materials sifted to angler momentum, it`s round moment. Strictly speaking, the earth is effected by the moon so speed of rotation decreases gradually (but very slowly, after 100 thousand years the day become only a second longer.) If you want to know more about this, you should study physics.

An interesting story here, the direction of rotation seems to be different for each stars, but seen from the view that the difference of angle of shaft, the direction is same. Moreover, in micro world, electron seems to spin to same direction. This is guessed the cause of magnetic force. However, this spin is not thinkable in our world, according to Einstein, there is no thing that faster than light. But if electron spins with the electron`s energy, the velocity is easily over the light, adding to this, an electron cannot turn unless double turn(720°). This is over our imagination.

Researchers have more questions about cosmos or micro world, and all of it is over our imagination. But let`s think about once on a time, Who thought the space exists? Who thought the earth isn`t center? Who thought the origin of cosmos? The world is filled with unthinkable but ordinary things if we know. It`s what is say “Truth is stranger than fiction”.:)