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  #31 (permalink)  
Old 24-October-2006, 04:12 AM
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Quote:
Originally Posted by John Kierein View Post
OK I recant. (or not)
Well, I'm certainly not seeing an effort to meet my challenge. But it's all right-- alternative ideas are as important for science as nonviable experiments are for evolution. It's not always pretty for the nonviable organism, however, but science is much more forgiving.
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Old 24-October-2006, 04:55 AM
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From the website of COSMOS magazine:

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About COSMOS

COSMOS is a magazine that treats science as natural part of culture, covering it from many angles: art, design, travel, interviews, humour, history and opinion. Published in Australia and with a global outlook, it was launched in June 2005 and has already won four journalism and industry awards. COSMOS is produced by Luna Media Pty Ltd, a specialist publishing house in Sydney.
As long as they don't treat it with ciprofloxacin, I guess it's all right.
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  #33 (permalink)  
Old 24-October-2006, 06:27 AM
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Hi folks,
Could the old saying, computer programmers always say, have anything to do with this result (garbage in results in garbage out) ?
in other words are they missing a key component for the data they have input in the Program simulations?
Im not exactly inferring that its garbage bieng used as data, but more of a missing piece of Info or a possible Incorrect theory? maybe simply caused by Illusion in our observations, that lead to such a statement? or is it really inadequate Processing Power? or just a bad Algorithym some where?
Im just pondering which is wrong our computers or is it our input Parameters are missing something important?
Dennis
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  #34 (permalink)  
Old 24-October-2006, 07:11 AM
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It could be any of those, you're right. But the article flat out says that the computers are not powerful enough, which means that simplifications have to be used to get results. The simplifications "threw the baby out with the bathwater" seems the most likely explanation, but that doesn't mean some other simplification might not work fine. A lot of physics is in finding the right simplifications.
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Old 24-October-2006, 09:43 AM
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VanderL has the correct view on this, IMHO.

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Originally Posted by VanderL
Very true, it just means that simulations should never be mistaken for physical reality; even if the results are "right" it doen't mean the theory is neccesarily true or correct.
Which is basically the same thing the Jim Peebles and Mike Disney have said about Carlos Frenk's galaxy collision/merger simulation for galaxy formation!

And for my 2 cents...they just keep adjusting parameters (knobs) until they get the simulation they are trying to construct.
And when they get what they are looking for...Eureka, we found the answer and when they don't...you get the above...The Big Bang can't be wrong, it must be that they don't have the right parameters, etc.
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Old 26-October-2006, 11:10 PM
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The issue is not, nor ever has been, is the Big Bang right. That is simply not science. The issue in science, in this and all things, is: is there any model that does better than the Big Bang model? The answer to that is a resounding no, and until there is, all this "the Big Bang is just an orthodoxy" baloney is just sour grapes.
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Old 27-October-2006, 03:57 PM
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An apparent discrepancy in the Big Bang theory of the universe's evolution has been reconciled by astrophysicists examining the movement of gases in stars.
Professor John Lattanzio from Monash's School of Mathematical Sciences and Director of the Centre for Stellar and Planetary Astrophysics said the confusion surrounding the Big Bang revolved around the amount of the gas Helium 3 in the universe.

"The Big Bang theory predicts a certain amount of Helium 3 in the universe. The trouble is, low mass stars (about one to two times the size of our sun) also make Helium 3 as a side product of burning the hydrogen in their cores. It's been thought that when the star becomes a giant it mixes the helium 3 to its surface and, near the end of its life, spews the helium 3 into space just before it becomes a planetary nebula. But there are inconsistencies with the amount of Helium 3 predicted to be in the universe and the amount that's actually there; there's much less than expected" - Professor Lattanzio.
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