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When an organism dies (whether plant or animal) its intake of carbon atoms ceases.
Radiocarbon is not stable; over time radiocarbon atoms decay into nitrogen atoms.The following article is primarily based on a discussion of radiocarbon dating found in The Biblical Chronologist Volume 5, Number 1. Radiocarbon dating is based on a few relatively simple principles. The vast majority of these are C (pronounced "c twelve"), the stable isotope of carbon.However, cosmic radiation constantly collides with atoms in the upper atmosphere.Once the timeline exists, the age of similar wood (e.g., from a nearby house) can be established by pattern-matching.The ultimate tree-ring chronology is the 'master' timeline of bristlecone pines - a chronology spanning more than 9,000 years.