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| A theory | |
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| Tweet Topic Started: Oct 27 2009, 12:57 AM (1,196 Views) | |
| fire lord | Sep 21 2010, 06:12 AM Post #11 |
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that was rude. and very uncalled for. |
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| Brewster | Sep 21 2010, 11:03 PM Post #12 |
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Fire & Ice Senior Diplomat
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According to the United States National Academy of Sciences:
According to the American Association for the Advancement of Science:
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| Mike | Sep 22 2010, 11:38 AM Post #13 |
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Hmmm.... I googled the term 'scientific theory' and didn't find your definition listed. Apparently, your definition theory, joins other definition theories, of what the term 'scientific theory' means.
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| Brewster | Sep 22 2010, 10:55 PM Post #14 |
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Fire & Ice Senior Diplomat
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What definition did you find, Mike? I'm sure the words will vary, but the essential meaning should remain. Here is part of Wikipedia's definition:
This is exactly shown by the theories of Evolution and Climate Change. When Darwin first proposed the theory of Evolution, the main objection was that there were very few examples of "Intermediate species", or missing links. Darwin's theory predicted many would be found. That was exactly so. in the last 150 years, whe have found huge numbers of such creatures in the fossil record. And there have been many strands of evidence, following the evolution of Whales, Humans, birds, etc. They all follow similar patterns. The same follows from Arrhenius' first calculations about the effects of CO2 proposed over a century ago - in spite of early objections that CO2 effects would be swamped by others, and right up to more modern ideas that it would reach the "saturation point", long term temperatures have continued to follow his calculations, and research into the past have confirmed that CO2 has always had the same effect. Many lines of inquiry have been followed, and while other effects have been noted, nothing else has the equivalent long term results - they produce cyclic patterns, but the signature of CO2 warming is always present.
Both Evolution and Climate Science meet this criterion, being gradually modified by research while staying within the original definitions.
In other words, in all alternative explanations of either creation of species or global temperatures, the explanations are either far more complex, requiring special circumstances not shown to exist, or some kind of supernatural explanation, by their very nature not observable. |
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| Brewster | Sep 22 2010, 11:00 PM Post #15 |
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Fire & Ice Senior Diplomat
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From About.com:
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| Summer | Sep 24 2010, 06:13 AM Post #16 |
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Please educate me... I always thought that scientific theory uses formal logic and rules that can be observed and tested by experimentation. To me, with all we've found out about DNA and such is that Darwin's theory is more fact than theory now. I always thought that philosophical theory is a theory that is believed to be true. It's more than likely not to be able to be proven by experimentation. Maybe you all could put the first post more in layman's terms for us dummies! Thanks |
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| Brewster | Sep 28 2010, 04:38 AM Post #17 |
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Fire & Ice Senior Diplomat
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Sounds like you've pretty much got it, Summer. Except that no scientist ever makes that leap and declares any theory a fact. |
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| ngc1514 | Oct 17 2010, 08:40 AM Post #18 |
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Facts support theories, but are never, in themselves, a theory. A good theory explains the facts in a coherent manner. Evolution is a fact. Evolution has been seen endless times both in the wild and in the lab and is defined by science as "the change in allele frequency of a gene over time." What drives the change in allele frequency of a gene and how this drive selects works to formulate the history of life on the planet is the Theory of Evolution. The observed facts of evolution are explained in a coherent, predictive package known as the Theory of Evolution. |
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