Orbital Angular Velocity of the Earth

Feed: Dr. Myron Evans
Posted on: Saturday, January 07, 2012 5:51 AM
Author: metric345
Subject: Orbital Angular Velocity of the Earth

I think that this should be very accurately known these days. A simple calculation is that the earth rotates 360 degress in a year (3.2 ten power seven seconds). This gives 2.0 ten power minus seven radians per second for the angular velocity. This can be refined slightly but is a good estimate. Googling around will give a lot of information.

In a message dated 07/01/2012 12:42:50 GMT Standard Time

I agree, an experimental precise measurement of omega is required. My intent for raising this question was that we need some method for guessing or defining omega (or rdot) for a graphical representation of torsion. The classical equation in Marion and Thornton is eq. 8.15 (probably 7.15 in your issue) but depends on the potential which has been abandoned in the new theory. I propose taking the angular momentum in non-relativistic approximation:

L = m r^2 omega

Together with the orbital equation then we should have all what we need.

Horst

Am 07.01.2012 12:51, schrieb EMyrone

I think that the astronomers still measure angular velocity through Kepler’s second law of 1609, equal areas in equal times. They must have supercomputers to do this with phenomenal accuracy in the solar system. Knowing this, dr / dt can be found from the chain rule:

dr / dt = (dr / dtheta)(dtheta / dt)

and in the solar system dr / dtheta is found from the observations of a precessing ellipse, the precession of the perihelion corrected by supercomputer for the gravitational effects of other objects, and other corrections. All the concepts that we have used are spectacularly correct, and congratulations on the computer algebra. These are all major advances in cosmology.

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