what makes the world move round?

Question

explain with scientific detail

Answer 1

Our solar system- the Sun, planets, Kuiper belt and Oort cloud, everything orbiting the sun even many times further than the orbit of Pluto- is thought to have condensed from a vast cloud of interstellar gas some billions of years ago when that cloud was shocked or squeezed by a supernova explosion. The dust and grains that condensed out of the cooling solar gas aggregated to form larger fragments of rock. Chondritic meteorites are basically just such collections of grains and fragments that have been compacted together to form a larger piece of rock and eventually small planetary bodies. Such bodies are termed planetesimals when they become roughly as large as asteroids (several kilometres to a few hundred kilometres in dimension). The larger they grow, the greater the gravitational attraction that the planetesimals exert and hence the more effectively they sweep up additional particles and rock fragments while circling the Sun. (Britannica CD)

Because that initial shockwave came from a particular direction and because the cloud was not of uniform density, the particles had a net rotation around their center of gravity. Humans subsequently identified that direction as "counterclockwise as viewed from above the north pole of the sun". As the bodies of the solar system grew by accretion, particles swept up from different distances from the center of gravity (the sun) had different orbital velocities. Analogously, water swirling down a drain moves slower further and faster closer to the center.

Galileo and Newton showed that rotational energy is conserved: The sun and planets ‘inherited' their spin from the orbits of their constituent particles, so to speak. Today, some five billion years later, all that rotational energy is still conserved in the rotations and revolutions of the bodies of the solar system. Our solar system is not unchanging, though. Because of gravitational interactions between moons and their planets, between the planets, meteors and comets themselves and interactions between the solar wind and the magnetospheres of the planets, rotational energy is still be ‘traded' back and forth: Mercury orbits in a 3:2 resonance with its rotation, our day is getting longer while the moon only shows one face towards us, the rings of the gas giants are temporary phenomena,... But that's another story.

Answer 2

Momentum. The world has been rotating since the gases coalesced and condensed into a planet. It revolves around the sun for the same reason, and the sun revolves around the core of the galaxy for the same reason.

Answer 3

If you ever watched the movie called The Core starring Hilary Swank and Aaron Eckhart,they have an interesting theory on that.Adios

Answer 4

Imagine you had a huge rock and you made it explode, lots and lots of bits would come flying off right, the earth is like one of these bits just like everything else in the universe. Now when your rock exploded and all the bits flew off they where all spinning in different directions all over the place, some where bumping into each other and some where magnetic like gravity and so actually span around each other before coming together. Basically we spin because we are part of an explosion and the explosion caused us to spin, also all the other bodies of mass around us effect the direction of our spin, and we effect theirs.

Answer 5

All mater was one ball, it exploded and the pieces went flying and spinning, everything is still moving including the Earth. Gravity will eventually pull everything back into one ball.

Answer 6

Gravitational attraction between the sun and the earth, if you mean its revolution around the sun. The earth is always falling toward the sun, but it is also falling around the sun at 66,000 mph, and its inertia is sufficient to counterbalance the sun's gravitational pull.

Answer 7

its not really scientific,ok its day here so its night in australia.night is the time most people have sex,so australia is banging up and down and jogging us around.when its day there its night here so we do the same for them.it does help that night spreads across the surface of the earth otherwise we would al be bounced off..

Answer 8

Love makes the world go 'round - From an old song

Sorry - just had to do it

Answer 9

I think it might be mice. ( don't quote me on this though ).
See, I think they run around on a big wheel, some where near the centre of the earth. It can get very exhausting for them, so they have to take it in turns. I have heard that there are refreshments and nibbles for them, for when they get tired. Other teams of mice take it in turns. ( sort of a rota/shift thing )

Answer 10

move around like how? spin, move around the sun? earth spins on its axis causing day and night. the tilt on its axis and rotating around the sun causes the seasons we have, and the way it moves around the sun is by the sun's gravity.
-hoped that helped!
P.S. i learned that in science today! lol.