Modern Theories 1980s To Present
This section includes alternatives to GR published after the observations of galaxy rotation that led to the hypothesis of "dark matter".
There is no known reliable list of comparison of these theories.
Those considered here include: Beckenstein (2004), Moffat (1995), Moffat (2002), Moffat (2005a, b).
These theories are presented with a cosmological constant or added scalar or vector potential.
Read more about this topic: Alternatives To General Relativity
Famous quotes containing the words modern, theories and/or present:
“The opera isn’t over till the fat lady sings.”
—Anonymous.
A modern proverb along the lines of “don’t count your chickens before they’re hatched.” This form of words has no precise origin, though both Bartlett’s Familiar Quotations (16th ed., 1992)
“It takes twenty or so years before a mother can know with any certainty how effective her theories have been—and even then there are surprises. The daily newspapers raise the most frightening questions of all for a mother of sons: Could my once sweet babes ever become violent men? Are my sons really who I think they are?”
—Mary Kay Blakely (20th century)
“In Haydn’s oratorios, the notes present to the imagination not only motions, as, of the snake, the stag, and the elephant, but colors also; as the green grass.”
—Ralph Waldo Emerson (1803–1882)