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When I first became interested in the creation-evolution debate, in late 1994, I looked around for sources that clearly and simply explained what radiometric dating is and why young-Earth creationists are driven to discredit it.I found several good sources, but none that seemed both complete enough to stand alone and simple enough for a What is radiometric dating?Even seals and otters that eat a lot of shellfish will have very old C-14 dates.: Suppose there is a set of variables whose individual values are probably different, and may be anything larger than zero. If there is a group of radioisotopes whose eventual decay is not predictable on the individual level, I do not understand how a decay constant is measurable.SYNONYMS OR RELATED TERMS: morphological type; morphology CATEGORY: typology DEFINITION: A descriptive and abstract grouping of individual artifacts whose focus is on overall similarity rather than specific form or function.

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In a separate article (Radiometric dating), we sketched in some technical detail how these dates are calculated using radiometric dating techniques.More likely, the reason is that even under the best of circumstances, the margin of error for carbon dating is at least a century or so, so dating something that recent would be meaningless. the margin of error depends on many factors, as outlined in the Mailbag Answer.Note that the margin of error in dating the Shourd of T is plus or minus 65 years, and we're dating back almost 700 years ago. [Edited by CKDext Havn on at AM]The isotopal change that occurred with the advent of A-bomb testing is Strontium-90.It causes the margin of error to be essentially zero when the number of random things becomes very large.If you had a bucket of coins and you threw them up in the air, it would be strange if they all came down heads.