Gravity (notes on others)
Principle of equivalence: unlike charge, gravitational field is a property of mass itself. i.e. inertial mass = gravitational mass. The force required to make things move is same as force of gravity. When an body is in gravitational free fall under earths gravity, it experiences no weight force since it creates a movement (inertial) field which balances out the gravitational one.
[Q. need these be exactly the same direction always e.g. are inertial and gravitational field equiv. to electrical and magnetic fields]
General relativity is largely a geometry problem based upon the following geometry:
Minkowski:
2d Pythag: l^2 = x^2 + y^2
3d Pythag l^2 = x^2 + y^2 + z^2
4d Pythag l^2 = w^2 + x^2 + y^2 + z^2
but time dimension is diff, therefore:
space-time T^2 = t^2 - x^2 - y^2 - z^2
The Curved Space Time of General Relativity is to Minkowski Flat 4D space time as Riemann n dimensional curved geometry is to Euclidian geometry.
Singularities exist(ed) for black holes and the Big Bang
Black hole entropy is very high
Big Bang entropy is very low
Collapse into a singularity does not require a symmetric collapse (Penrose)
The Big Bang singularity was exceedingly unlikely
Penrose suspects that a quantum gravity would require an adjustment to quantum theory to make it time asymmetric, probable adjustment to Schrodinger wave equation. This is a maverick view.
RSS
October 26th, 2009 at 3:46 pm
Hypothesis:
1) At least some spiral galaxies form in pairs.
2) Gravity is a dipole with each of the two galaxies spiraling around opposite gravitational poles.
3) Unlike electromagnetism, the gravitational poles repel each other.
4) Because of the distances involved, the local illusion is that all gravity attracts and that gravity is a monopole. At a distance, matter appears to be of the same nature since without a god’s-eye perspective, the repulsive effect between such galaxy pairs is not apparent, nor looked for.
5) Early in their formation, the galaxy pairs actively trade complementary matter as they repel or “fly away” from each other. ARP-194 illustrates this process.
October 26th, 2009 at 4:13 pm
“3) Unlike electromagnetism, the gravitational poles repel each other.”
Isn’t this like electromagnetism? i.e. the magnetic complement of an electric field has poles which repel and would be equivalent to the gravitational complement (with poles which repel) of an inertial field.
October 26th, 2009 at 4:17 pm
http://www.scribd.com/doc/15948249/Dark-Matter-Dark-Energy-and-Gravitational-Proprieties-of-Antimatter-WWWOLOSCIENCECOM
October 28th, 2009 at 12:36 pm
In electromagnetism, opposite poles always attract i.e. N to S, + to -. In gravity opposite poles always repel, like poles will actually attract so at least some of the Hubble shots of “galaxies in collision” actually are “galaxies of like gravitational poles” will in fact attract and can collide.
And matter and anti-matter annihilate each other, so “local gravitational matter” at our end of the local galactic gravitational dipole repels the “complementary gravitational matter” rather than annihilating it.
In summary, you’ll have local-gravitational-matter (LGM) that we’re made of, anti-(local)-gravitational-matter (ALGM) that will annihilate (LGM), complementary-gravitational-matter (CGM) that’s repelled by our end of the gravitational dipole/is attracted to the other pole of the gravitational dipole.
And if there’s any ultimate symmetry in the universe, there is likely anti-(complementary)-gravitational-matter (ACGM) that will annihilate CGM.
October 28th, 2009 at 1:03 pm
Interesting - what’s the source of this idea?
October 28th, 2009 at 1:41 pm
Originally a rather curious application of deductive reasoning.
Lent credibility by the discovery of major gaps in astronomy, physics, etc. that gave birth to the rather odd concepts of Dark Matter and Dark Energy. Along with the discovery in the 1990s that, in certain directions at least, the big bang wasn’t slowing down but actually accelerating.