carbon dating or c-14 dating is used to date these artifacts. Because carbon decays at a universal rate, by examining the decay at the atomic level we can say with certainty when it was made or died. Because just about everything, especially clay, has carbon in we can see when those clay tablets were first made. using the equation t(BP) = -t avg\x\ln{\frac{N}{N_0}} we can easily establish a reliable date up to 60000 years ago. |
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