geistkiesel
Valued Senior Member
The Spatial Limitation of Gravity Forces
Neptune was discovered following unexplained perturbations in Uranus’ orbit and Pluto followed after unexplained trajectory perturbations in Neptune’s orbit.
“Fritz Wacky was the pioneer in this field. In 1933, at the California Institute of Technology, the Swiss astrophysicist Zwicky was the first to theorize dark matter after he observed that there was 400 times the mass in the Coma cluster of galaxies than there ‘should’ have been or that he had expected there to be. According to Zwicky, there must have been something that couldn’t be seen that accounted for the rest of this mass. Furthermore, he came to the conclusion by looking at groups of galaxies tens of millions of light-years away from one another. Zwicky observed that their relative speeds were much too great for them to be held together by the gravitational attraction of the visible matter alone, and that therefore, there must have been something else holding them together. He called this something else ‘invisible matter’ or ‘dark matter’. And then other discoveries sprang forth.”
http://blogs.princeton.edu/frs110/s2005/darkmatter/2_history_of_dark_matter/
Is ‘dark matter’ a consequence of modern ‘galaxy formation’ theories? From the same source as above:
“In 1950, a woman named Vera Rubin made another startling discovery. Newton’s laws predicted that bodies orbiting around a center move more slowly the farther they are from that center. (This has to do with the strength of gravitational attraction being stronger when it is farther away. An example of this is the longer orbits of Pluto compared with Mars: one is much closer to the sun than the other.) Instead, Rubin’s conclusions contradicted Newtonian laws. She built on the theories of Zwicky to discover that galaxies showed an ‘extra motion’: by examining galactic light signatures, she found that bodies orbiting around the outskirts of galaxies traveled at approximately the same speed as the bodies orbiting near the center of a galaxy, therefore some other matter had to exist in the outskirts, some matter that we couldn’t see, that was acting upon the visible bodies. Can you guess the punch line? It was dark matter.”
From momentum and distances achieved by a group that is no longer subject to the gravitational attraction of ‘one time’ central force authority. Are the stellar objects expressing a physical tendency for less centralized expression?
From computer simulations (garbage in, garbage out – who and how do you trust?) velocities of outer orbit stars has been attributed to the collision of spiral galaxies. A good place to start for all you relativity theorists is:
Http://www.isracast.com/article.aspx?id=50
Neptune was discovered following unexplained perturbations in Uranus’ orbit and Pluto followed after unexplained trajectory perturbations in Neptune’s orbit.
“Fritz Wacky was the pioneer in this field. In 1933, at the California Institute of Technology, the Swiss astrophysicist Zwicky was the first to theorize dark matter after he observed that there was 400 times the mass in the Coma cluster of galaxies than there ‘should’ have been or that he had expected there to be. According to Zwicky, there must have been something that couldn’t be seen that accounted for the rest of this mass. Furthermore, he came to the conclusion by looking at groups of galaxies tens of millions of light-years away from one another. Zwicky observed that their relative speeds were much too great for them to be held together by the gravitational attraction of the visible matter alone, and that therefore, there must have been something else holding them together. He called this something else ‘invisible matter’ or ‘dark matter’. And then other discoveries sprang forth.”
http://blogs.princeton.edu/frs110/s2005/darkmatter/2_history_of_dark_matter/
Is ‘dark matter’ a consequence of modern ‘galaxy formation’ theories? From the same source as above:
“In 1950, a woman named Vera Rubin made another startling discovery. Newton’s laws predicted that bodies orbiting around a center move more slowly the farther they are from that center. (This has to do with the strength of gravitational attraction being stronger when it is farther away. An example of this is the longer orbits of Pluto compared with Mars: one is much closer to the sun than the other.) Instead, Rubin’s conclusions contradicted Newtonian laws. She built on the theories of Zwicky to discover that galaxies showed an ‘extra motion’: by examining galactic light signatures, she found that bodies orbiting around the outskirts of galaxies traveled at approximately the same speed as the bodies orbiting near the center of a galaxy, therefore some other matter had to exist in the outskirts, some matter that we couldn’t see, that was acting upon the visible bodies. Can you guess the punch line? It was dark matter.”
From momentum and distances achieved by a group that is no longer subject to the gravitational attraction of ‘one time’ central force authority. Are the stellar objects expressing a physical tendency for less centralized expression?
From computer simulations (garbage in, garbage out – who and how do you trust?) velocities of outer orbit stars has been attributed to the collision of spiral galaxies. A good place to start for all you relativity theorists is:
Http://www.isracast.com/article.aspx?id=50