| > Whether the earth rotates depends on your frame of reference. You can pick one where it is, you can pick one where it isn't. Neither is "true". No, both are true, yet you claimed that "3 in 4 hacker news readers don't know the earth doesn't orbit the sun at all" which is a false and ignorant claim. > So saying the earth orbits the sun is a choice : it is not a true or false statement, just a statement reflecting an opinion. False! Mathematical physics is as far from opinion as you can get, and it has vast amounts of supporting evidence. > You cannot pick a reference frame in relativistic space that shows ellipsoid movement (like the one predicted by the Newtonian theory which is generally what people mean by "orbit"). Yes, you can! As I said earlier, sufficiently above the sun's north pole, you would see a classic Newtonian orbit, because of the choice of reference frame. > you can only pick reference frames where the earth is standing still entirely, or you pick reference frames where it is moving along a straight line. I just proved this claim to be false. But you know what? I'm not going to go through and correct all your false arguments (they're all false). I've had this exact experience more times than I care to remember. You don't know anything about physics or mathematics, your overall argument is post-modern ("It's all opinion"), and you're a waste of time. If you actually understood the topic, you would use 10% of the words you use while being wrong, and your posts might become worth reading. |
No you would not. Here I assume a correct reference frame : the start point is above the sun's north pole, but it is in gravitational freefall, not artificially accelerated to the same relative position above the sun. If you looked at the earth moving and describe it's movement as an equation in relativistic space you'd get p = k * s + c (with k a real number, p s and c vectors).
This is not a rotation, obviously.
Intuitive observation would show rotation, but that's wrong, or at least that's not really what's happening. Note that your position "above the sun's north pole" is actually an accelerated movement at a point in time. As such it is not a reference frame that is at rest, and as such is not the type of reference frame you'd want to use for anything, unless of course you're using newtonian physics.