why do you think the earth revolves around the sun?
149546
because of centrifugal force. imagine a ball with a string and ur swinging it around. ur hand is the sun, the string is the gravity, and the ball is the earth. the string holds the ball aroound ur fis while the centrifugal force is making the ball swirl.
491191
The Sun rises and sets where it does because of the Earth spinning, the Earth spins and the Sun comes into view from where we stand from what we term the East, it doesn't literally rise anywhere.
431091
It is because of the Earth's rotation.
779660
The Earth and Mars do not orbit the sun in perfect circles, they are ellipses.\nSo sometimes the Earth is closer to the sun than other times, and sometimes Mars is closer to the sun than other times.\nSo if the Earth is farther from the sun than normal at the same time Mars is closest to the sun, and this happens when both planets are on the same side of the sun, then we are closer to Mars than any other time and therefore we can see it better.
224788
Orbital obliquity is probably influenced by the sun in some way during the time when the planets were forming, but I don't think we have any solid idea exactly what factors were involved.  It's clear that most of the planets' axis are more or less vertical, though Venus in fact rotates the opposite way (so its obliquity is considered to be nearly 180 degrees).  The big exception is Neptune, which is nearly lying on its side.\n\nIf the Earth was similarly lying on its side as you suggest, then yes, it could spin the same and have light and dark "sides" that only change as it moves around the Sun.  See Neptune for details of this exact mechanism.
833064
All the planetary objects in the solar system revolves round the Sun. Then how can the earth be the centre. The center of the Solar system must be at the Sun. The Sun is relatively stationary in the solar system.
505384
We can see the sun rise and set, and it would be impossible for the sun to revolve around the earth because of the huge difference in math, so the only explanation is that the earth is spinning.\n\nIn reply to the first two replys, the sun is not the center of the universe, it is the center of the solar system. Also, because of the sun's gravity, we REVOLVE, but that has nothing to do with rotation. MOMENTUM is what causes us to not feel the spin/movement, not inertia.
438984
Minimally, 2.  Depending on how simplisticly we are thinking about the problem.\n\n1) the Earth rotates around it's axis\n2) the Earth revolves (orbits) around the sun\nhttp://www.ucolick.org/~bolte/AY4_00/week1/motionsC.html\n\nMaximally: ???\n3) the Earth and Moon really form a system together which revolves around the sun so there is the wobble attributable to that interaction.\nhttp://search.yahoo.com/search?ei=utf-8&fr=slv1-&p=earth%20moon%20system%20motion\n\n4) the Earth precesses about it's axis changing the tilt relative to the orbital plane\nhttp://csep10.phys.utk.edu/astr161/lect/time/precession.html\n\n5-14) Perturbations in Earth's motion due to gravitational pull from other planets (Mercury, Venus, Mars, Jupiter, Saturn, Neptune, Pluto, UB313).\n\n15) Solar system motion through the Milky Way galaxy which brings the Earth along with it\n\n16) Motion of Galaxy through the universe bringing along the solar system and earth.\n\n17) Changes in motion due to sloshing of the oceans and earthquakes.\n\n...
526017
The Earth's axis is tilted to make us facing closer to the sun a much longer time, getting more heat every day.  Thats why in winder the days are shorter, because we face away from the sun at a tilt.
567580
The Sun rotates on its axis once in about 27 days. This rotation was first detected by observing the motion of sunspots as shown in the animation to the left. The Sun's rotation axis is tilted by about 7.25 degrees from the axis of the Earth's orbit so we see more of the Sun's north pole in September of each year and more of its south pole in March.\n\n\nEDIT: "the sun doesnt move the plantes revolve around the sun"  Your thinking of an Orbit, the earth rotates on an axis, and so does the sun, the earth circles the sun.
677346
If you were to go a million miles (or so) over the north pole, you'd see the earth rotating counterclockwise, the moon revolving around the earth counterclockwise, and the earth moving counterclockwise around the sun.  \n\nIt is the earth's counterclockwise rotation that makes the sun seem to rise in the east and set in the west.
655853
Precession! The shape of Earth’s orbit becomes more or less oval (eccentricity), Earth wobbles as it spins (precession), and Earth's axis changes too (tilt). All these changes, over thousands of years, causes Earth's climate to change.
880350
It rotates and revolves, just like the planets. It rotates in the same direction as the earth (counter-clockwise), and completes a rotation about once a month. (Because the sun is gaseous, its equator and poles rotate at different speeds.) Galileo discovered that the sun rotates from watching the movement of sunspots. Meanwhile, the sun revolves around the center of the galaxy, in much the same way that the earth revolves around the sun.
338602
There are a number of observations that prove Earth moves around the Sun. Astronomers have found that relatively nearby stars appear to move horizontally back and forth slightly over a year's time. This effect is due to a phenomenon called parallax which in turn results from Earth's movement around the Sun. Also Earth's measured movement through the cosmic microwave background radiation is consistent with our orbit around the Sun.\n\nThis website has a more complete discussion about proofs of Earth's orbit around the Sun --\n\nhttp://curious.astro.cornell.edu/question.php?number=190
659353
The Earth rotates counter-clockwise when viewed from above the North Pole. \n\nThe rotation causes a centrifugal force, which causes the bulge of the equator, and a coriolis force, which is important in determining the flow of jet streams in the atmosphere and currents in the ocean.
1162718
Because the sun does rise in the east and set in the west.  \n\nWe do know now that the reason is not because the sun is revolving around the earth, but because the earth spins on its axis.
32921
Um... what are you asking here?  I think an answer would be that the planets revolve around the sun because the sun it so massive that it makes a small 'dent' in space-time, and the planets 'fall' towards the depression.  There are 9 planets in the solar system, and Earth is the third from the sun and the largest of the inner rocky - planets.  Many of the planets have satellites, called moons.  Earth's moon is called Luna which is (relative to the size of its planet) particularly large.  The planets also rotate on their axises (which is why we have, among other things, night and day).  Nearly all planets also have an atmosphere, a layer of gas that exists above the planet's surface, though only Earth has an atmosphere suitable for breathing.   Beyond Pluto, the last official planet, is a very large void followed by a large collection of planetary fragements (meteors), then another large void.  The solar system ends at a boundry called the heliopause, the outtermost reaches of the sun's solar winds (think of it as a wind made of radiation).  If you travel through the heliopause, you would experience an arguably extreme 'termination shock' as you enter an even larger void into intersteller space.  Okay, that's all I got.