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06-11-2003, 05:32 PM | #21 |
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Free access is available, maybe to White's paper, even, at Nature's website.
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06-11-2003, 05:43 PM | #22 | |
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Radiometric dating is not merely sending some rock to the lab and getting some magic result. Most radioactive dating techniques do not date sedimentary rocks which the fossil is in. Rather they date volcanic layers above and below them. This were a bit of luck comes in: say the area which to rock was formed went a million years without an eruption then one is not going to be able to get a very precise date via normal radiometric methods. Also not all volcanic rocks can be dated as easily as others: the uncertainty can vary. So on and so forth. |
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06-11-2003, 05:53 PM | #23 | |
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There is also a "Nature Science Update" (which is for the public and is not part of the journal) on the find here. |
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06-11-2003, 06:20 PM | #24 | |
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06-11-2003, 06:37 PM | #25 | |
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doov |
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06-11-2003, 06:37 PM | #26 |
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Shh! Don't ruin Magus' perfect world!
It seems to me Magus that you've gone the very common route of confusing the words precision and accuracy (Which my chemistry teacher drilled into our heads ). The measurements are very accurate, but not very precise. They are correct to the best of our knowledge, but that accuracy is in a range of a couple thousand years because there's no way to date it to an exact year. The dates for the newer bones are more precise because the volcanic rock around it can be measured a bit more exactly than before (notice the 30,000 year range for before, and the 6,000 year range for these). Being imprecise is far from being wrong. (And you can't twist imprecise into meaning the fossils are younger, because that would be inaccurate ) I hope that wasn't confusing. EDIT: I love how they have precision as a definiton for accuracy on dictionary.com , but really, there is a difference... |
06-11-2003, 06:42 PM | #27 |
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Could this be considered an additional transitional given they are "nearly human"? That would help with the YECers over at Christian Forums. It's been posted but nobody is responding.
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06-11-2003, 07:01 PM | #28 | |
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06-11-2003, 09:01 PM | #29 | |
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06-11-2003, 09:14 PM | #30 |
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Originally posted by Magus55
Except my source is outside of the natural world, where those things can happen. Except those things supposedly happened in the natural world. |
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