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By knowing how much carbon 14 is left in a sample, the age of the organism when it died can be known.
It must be noted though that radiocarbon dating results indicate when the organism was alive but not when a material from that organism was used.
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Archaeology and other human sciences use radiocarbon dating to prove or disprove theories.
Over the years, carbon 14 dating has also found applications in geology, hydrology, geophysics, atmospheric science, oceanography, paleoclimatology and even biomedicine.
Liquid scintillation counting is another radiocarbon dating technique that was popular in the s.
The rate of decay or half-life of C14 was proven linear, allowing scientists to determine the approximate date of the expiration of a life form based on the amount of C14 remaining in the fossil.The following striking examples are just the tip of the iceberg: Another thing you may not have known, is that Carbon dating was not invented until 1949! Why were they teaching the earth is billions of years old 160 years ago?So when they started teaching the earth is billions of years old, back in 1830, they didn't teach it because of carbon dating. Because they needed billions of years to make their theory look good.Radiocarbon dating is a method that provides objective age estimates for carbon-based materials that originated from living organisms.The impact of the radiocarbon dating technique on modern man has made it one of the most significant discoveries of the 20th century.
And there is no way to prove that the decay rate was not different at some point in the past.