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Good info. I just found some more. Ethan Siegel has a discussion of the results that they found on his blog. What The Entire Universe Is Made Of, Thanks to Planck!. He expands on the news with some interesting details. Bill Gill
C is not the speed of light in a vacuum. C is the universal speed limit.
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The fact that the Big Bang happened about 13.8 bya is not exciting. What is exciting is the fact that we can know it.
"Time is what prevents everything from happening at once" - John Wheeler
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The fact that the Big Bang happened about 13.8 bya is not exciting. What is exciting is the fact that we can know it.
....and the possibility that the Universe is slowing down, as it ages.
. . "You will never find a real Human being - Even in a mirror." ....Mike Kremer.
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....and the possibility that the Universe is slowing down, as it ages What I read is: "Compared to the previous best measurements, the universe is...expanding a little more slowly than currently accepted standards." - which says that the acceleration is a little less, not that the expansion is slowing. So, the revised Hubble Constant is about 42miles/s/Mpc. You see? Douglas Adams was right, the answer is 42
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....and the possibility that the Universe is slowing down, as it ages What I read is: "Compared to the previous best measurements, the universe is...expanding a little more slowly than currently accepted standards." - which says that the acceleration is a little less, not that the expansion is slowing. So, the revised Hubble Constant is about 42miles/s/Mpc. You see? Douglas Adams was right, the answer is 42 What Pete reads is.... "Compared to the previous best measurements, the universe is...expanding a little more slowly than currently accepted standards." - which says that the acceleration is a little less, not that the expansion is slowing. I appreciate your opinion. However, since the Universe is expanding more slowly....I feel its expansion must be slower as well. q.e.d I intimated above, that both measurements may well be tied to the age of the Universe and therefore could be changing as the Universe ages. A future detailed map of the oldest light in the Universe in another 50 years would answer this idea. Since Age...is tied to the process of slowing down, in my personal case, -as well as a number of actions in the physical world, my idea could prove correct. Interesting Video, re:- ancient light. http://www.space.com/20333-ancient-light-of-the-universe-snapped-by-planck-mission-video.html
Last edited by Mike Kremer; 03/22/13 01:08 PM. Reason: moved icon
. . "You will never find a real Human being - Even in a mirror." ....Mike Kremer.
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One thing that was interesting in Eric Siegel's post was that they found no evidence of a neutral neutrino. The main reason I noticed was that there was an article about neutrinos in the latest Scientific American (April 2013). In that article the author mentioned the possibility of a neutral neutrino as a 4th flavor. They said that we might be able to detect it in the microwave background. So the fact that it wasn't found seems to close that question.
Bill Gill
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I appreciate your opinion. However, since the Universe is expanding more slowly....I feel its expansion must be slower as well. q.e.d Since the facts are not a matter of opinion, we should tidy this up. It is not stated, nor suggested, that the universe is expanding at a decreasing rate over time. It is stated that the rate of expansion is slower than previously thought. Can you see the difference, Mike?
"Time is what prevents everything from happening at once" - John Wheeler
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In that article the author mentioned the possibility of a neutral neutrino as a 4th flavor. They said that we might be able to detect it in the microwave background. So the fact that it wasn't found seems to close that question.
Bill Gill They did say 'might' . How conclusive should we take it's non-detection to be, I wonder?
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I appreciate your opinion. However, since the Universe is expanding more slowly....I feel its expansion must be slower as well. q.e.d Since the facts are not a matter of opinion, we should tidy this up. It is not stated, nor suggested, that the universe is expanding at a decreasing rate over time. It is stated that the rate of expansion is slower than previously thought. Can you see the difference, Mike?
Mike replied;-
The matter of opinion, or the difference, as I see it...only came to 'light' because of the latest more accurate measurements, which shows the expansion is now slower than we thought. If a third set of future measurements (50 years on) show the same effect, i.e yet a slower rate of expansion than our present (2013 year) readings, what might you think then?
Clue...there are two possibilities, and I have stated mine.
. . "You will never find a real Human being - Even in a mirror." ....Mike Kremer.
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In that article the author mentioned the possibility of a neutral neutrino as a 4th flavor. They said that we might be able to detect it in the microwave background. So the fact that it wasn't found seems to close that question.
Bill Gill They did say 'might' . How conclusive should we take it's non-detection to be, I wonder? There is basically nothing totally conclusive in science, especially when you are talking about something that is still open to interpretation. I would say that this observation lowers the probability of the existence of the neutral neutrino, but doesn't necessarily completely knock it out. Bill Gill
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If a third set of future measurements (50 years on) show the same effect, i.e yet a slower rate of expansion than our present (2013 year) readings, what might you think then?
Clue...there are two possibilities, and I have stated mine.
The present readings are showing no such 'effect'. They are showing the previous readings to be incorrect; but, of course, you're free to believe what you like, evidence notwithstanding.
"Time is what prevents everything from happening at once" - John Wheeler
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In that article the author mentioned the possibility of a neutral neutrino as a 4th flavor. They said that we might be able to detect it in the microwave background. So the fact that it wasn't found seems to close that question.
Bill Gill They did say 'might' . How conclusive should we take it's non-detection to be, I wonder? ...I would say that this observation lowers the probability of the existence of the neutral neutrino, but doesn't necessarily completely knock it out. Bill Gill Agreed. I wasn't sure if that was what you meant in your previous post.
"Time is what prevents everything from happening at once" - John Wheeler
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