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Originally posted by pai mei
The moment they invented "Dark Matter" to support the gravitation theory, they in fact disproved the gravitation theory.
Nobody found any proof of this invention and nobody will. It;s something else that's keeping the Universe together, gravity is not enough but that does not mean dark matter must exist. There must be something else.
[edit on 9-5-2009 by pai mei]
MOND uses simple statistical methods to predict the motion of galaxies. Roughly speaking, the methods used to construct MOND are similar to standard linear regression techniques found in college level statistics book.
MOND is very sparse on theoretical framework, unlike theories such as GR. It's main assertion is that " in the case of intergalactic scale, gravitational force does not vary proportional to the inverse square of the distance (1/r^2), but tend towards the inverse (1/r). " . There is no official reason attached to MOND as to why newtons inverse square law breaks down at this scale.
MOND was created because it became apparent to physicists that existing models were not producing results consistent with observations. i.e. GR and dark matter models.
MOND is by far the best approximation for inter- galactic dynamics.
Many physicists don`t like MOND because it is sparse on theoretical framework, and doesn`t fit in with the rest of physics.
- But I think seeing as though MOND has no theoretics attached to it, the door is wide open for someone to fill out the theoretics to fit in with the rest of physics.
I like MOND because it's the most accurate model. My own speculation as to why newtons law breaks down at largest scales is because the universe is closed with respect to force fields. I've written a bit about this idea in physicsforums, but what with the forum-revision it might not be easy to find.
I think it is only a matter of time before physicists grow to like MOND.
Originally posted by stander
A possible solution to this contradiction would be to reject Newton's classical theory of gravitation," Dr Jerjen said.
The researchers, including Dr Helmut Jerjen of the Australian National University, studied dwarf galaxies orbiting the Milky Way.
If someone suggests to reject Newton's theory of universal gravitation, then the person is more than obliged to hint the reason why the dwarf galaxies orbit the Milky Way the same way planets orbit the sun. I can't see any link between the non-uniform distribution of the dwarf galaxies and Newton's theory, but Jerjen apparently does without mentioning it at all. Instead he wastes no time to suggest changing things around in a radical way to make the Scientific Hall of Fame.
Just another crappy presentation . . .
Originally posted by beancloud
This is a link to an alternate theory. It adds to Newton and Einstien. He Claims they left vital parts of the equation out. Its a long watch but well worth it.
www.kokomotion.com...
Originally posted by stander
A possible solution to this contradiction would be to reject Newton's classical theory of gravitation," Dr Jerjen said.
The researchers, including Dr Helmut Jerjen of the Australian National University, studied dwarf galaxies orbiting the Milky Way.
If someone suggests to reject Newton's theory of universal gravitation, then the person is more than obliged to hint the reason why the dwarf galaxies orbit the Milky Way the same way planets orbit the sun. I can't see any link between the non-uniform distribution of the dwarf galaxies and Newton's theory, but Jerjen apparently does without mentioning it at all. Instead he wastes no time to suggest changing things around in a radical way to make the Scientific Hall of Fame.
Just another crappy presentation . . .