Mr k.c paul has declared not earth, sun goes around the earth. it right or wrong? give reason.?

Answer 1

You can argue that the sun goes around the earth but not in a way that allows you to say that "the earth goes around the sun" is wrong!

The principle of relativity (Galileo not Einstein) says that nothing moves unless it moves with respect to something else: there is no such thing as absolute motion. Its like that feeling you get in a train in a station when the train next to you is pulling out of the station. It feels like you are moving in the opposite direction: and so you are relative to the other train! The way you decide that the other train is moving and not you is by judging the movement relative to the ground (the station, platform etc).

Now before Einstein it was thought that the universe had something that established everybody's position. At one point the theory was a "luminiferous ether", a body that supported light waves. If the ether (or other method of judging rest) existed you could say that the Sun (or earth) was stationery relative to the ether, just as your train is stationery to the ground. "Ether smether" said Einstein and did away with the concept.

Without it there is no way of deciding which is moving and which isn't. (Imagine the two trains in an empty universe moving in relation to each other) The sun and the earth move relative to each other and that's about it. Whether you describe it as both moving or the sun moving or the earth moving is entirely up to you. Now you can say that if you think about the earth moving around a stationery sun the calculations are simpler. Its a good point, but not conclusive. The decision remains voluntary: you are quite at liberty to think of the earth as stationery and all the heavens moving around it. BUT as before you are JUST AS AT LIBERTY to think of the earth moving around the sun - and K C Paul has no argument against that.

(Actually many of the theorist who posit a still-earth do posit an ether-type substance which could establish which is moving and which sationery. But this ether-type substance remains as elusive as dark matter).

Answer 2

Do the math.

Earth's gravity cannot possibly cause the Sun to orbit the Earth in a single day at 93,000,000 mi orbital radius

Venus would still have to orbit the Sun to produce the phases that Galileo saw in his telescope. Ditto all the other planets. That would make Earth a major and untenable anomaly.

Answer 3

Riding on a Rotating Sphere
As you move north or south of the equator towards the Poles:

1. East-West parallel of constant latitude narrows.
2. The distance covered in 24-hours is less, so the speed is less.

The speed of rotation is greatest at the Equator and gets smaller with increasing latitude. For example, at Columbus (Latitude 40-degrees North):

Circumference of the Earth at 40-deg North = 30,600 kilometers
Time to complete one Rotation = 24 hours

Speed of Rotation at 40 North = Distance/Time = 30,600 km / 24 hr = 1280 km/hr

[Note: For the more mathematically inclined, the rotation speed at a given Latitude = cos(Latitude) x 1670 km/hr.]

Answer 4

KC or whoever has to be declared Insane... at this era in time....
It is 'wrong', but this comment is 'right'

Simple reason is that sun is centre,, and no centre revolves around its sector - but other way round..