Fermament radiometric dating
Animals later eat the plants, and incorporate both Carbon 12 and Radioactive Carbon -14 into their tissues.Humans eat both the plants and the animals, and incorporate a tiny amount of Radioactive Carbon-14 into their tissues.For example the human body is composed of 17 elements, including Carbon. The normal isotope C-12 has 6 neutrons, 6 protons, and 6 electrons.
Carbon Dating is a method of dating samples with the element Carbon in them.The actual date of the specimen is arrived at by an application of the known "half life" of Carbon -14 decay.Since scientists know that Radioactive Carbon-14 decays over a "half life" of 5,730 years, scientists believe they can date samples of material by interpretation of the quantity of Carbon-14 present, and the known "half life" of 5,730 years.The Radioactive decay proceeds exponentially from ½ to ¼ to ? In theory Carbon -14 never totally disappears, but after about 5 half lives the difference is not measurable with any degree of accuracy.This is why many people believe that Carbon Dating is only accurate for objects less than 40,000 years old.