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Claims have been made of the method being calibrated back to 10,000 years using dendrochronology, C ratios the same as the atmosphere.For example, it is well known that carbon dating cannot be used on many types of marine life due to reservoirs of "old" carbon held in sedimentary rocks.No other scientific method has managed to revolutionize man’s understanding not only of his present but also of events that already happened thousands of years ago.Archaeology and other human sciences use radiocarbon dating to prove or disprove theories.

Despite this, however, caution is still necessary in accepting dates derived from carbon dating.

Scientists at Brookhaven National Laboratory and the Physikalish-Technische-Bundesandstalt in Germany have reported "unexplained periodic fluctuations in the [nuclear] decay rates of Si-32 and Ra-226...

strongly correlated in time, not only with each other, but also with the distance between the Earth and the Sun." It is likely that similar discrepancies and fluctuations occur with other nuclear decay rates, such as that of Many people believe that carbon dating has proved that the Earth is millions or billions of years old, much older than the biblically derived date of around 6,000 years.

Carbon dating, or carbon-14 dating, is a method for comparing the ages of organic materials such as bones or artifacts made from anything that once lived.

Unlike many other radiometric dating methods, carbon dating has been calibrated for historical periods and within that range can give reliable results.

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Radiocarbon decays slowly in a living organism, and the amount lost is continually replenished as long as the organism takes in air or food.