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To: Physicist
If inflationary cosmology is correct, then the universe is (and always has been) at its own black hole density, meaning that the universe still is that primordial black hole. We've never escaped it and never will.

Intriguing thought! I'm curious...If inflationary cosmology proves correct, then do you think that it might explain ANOMALOUS GRAVITATIONAL FORCE?
A discussion of this phenomenon appears in the 4 October 1999 issue of Newsweek magazine (See also the December 1998 issue of Scientific American.) The mystery of the tiny unexplained acceleration towards the sun in the motion of the Pioneer 10, Pioneer 11 and Ulysses spacecraft remains unexplained. A team of planetary scientists and physicists led by John Anderson (Pioneer 10 Principal Investigator for Celestial Mechanics) has identified a tiny unexplained acceleration towards the sun in the motion of the Pioneer 10, Pioneer 11, and Ulysses spacecraft. The anomalous acceleration - about 10 billion times smaller than the acceleration we feel from Earth's gravitational pull - was identified after detailed analyses of radio data from the spacecraft. A variety of possible causes were considered including: perturbations from the gravitational attraction of planets and smaller bodies in the solar system; radiation pressure, the tiny transfer of momentum when photons impact the spacecraft; general relativity; interactions between the solar wind and the spacecraft; possible corruption to the radio Doppler data; wobbles and other changes in Earth's rotation; outgassing or thermal radiation from the spacecraft; and the possible influence of non-ordinary or dark matter. After exhausting the list of explanations deemed most plausible, the researchers examined possible modification to the force of gravity as explained by Newton's law with the sun being the dominant gravitational force. "Clearly, more analysis, observation, and theoretical work are called for," the researchers concluded. The scientists expect the explanation when found will involve conventional physics.

67 posted on 04/26/2002 9:12:59 AM PDT by callisto
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To: callisto
If inflationary cosmology proves correct, then do you think that it might explain

No, it definitely does not. (I think that the explanation there has to do with good old-fashioned electromagnetism.) Inflation is a runaway process, and it requires a stable high vacuum energy state called a "false vacuum" that does not exist in today's universe.

68 posted on 04/26/2002 9:32:23 AM PDT by Physicist
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