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Evolutionists then claim to determine the amount of time since the death of the organism by measuring the current ratio.
The lower the amount of Carbon-14, the longer it has been since death occurred.
That means that starting with one pound of 100% Carbon-14, half of it would decay in 5,730 years, leaving 50%, or half a pound.
Then, in another 5,730 years, a second decay period would occur, leaving one quarter of a pound.
The Carbon-14 Dioxide is then utilized by plants during their normal metabolism.
Animals and humans who eat these plants take the Carbon-14 into their systems just as they would Carbon-12 Dioxide.
As the magnetic field decreases, more cosmic radiation penetrates the earths atmosphere and this causes a slow long-term increase in Carbon-14 production.
They want to know if it is accurate or if it works at all.Besides the aforementioned items, the amount of cosmic radiation in the past, and in particular the amount reaching the atmosphere, may have been dramatically different.If one were to believe the Bible, the earth was surrounded by a layer of water vapor between Creation and the Flood.There is then a ratio of Carbon-14 to Carbon-12 in the bodies of plants, animals and humans which could be considered as fixed at the time of death.After death, the Carbon-14 would decay and the ratio of the two isotopes would change.
on July 16, 1945, and the subsequent above ground testing between 19, caused a rise in neutrons which in turn increased Carbon-14 concentrations around the world.