Since the 1940s, scientists have used carbon dating to determine the age of fossils, identify vintages of wine and whiskey, and explore other organic artifacts like wood and ivory.
The technique involves comparing the level of one kind of carbon atom—one that decays over time—with the level of another, more stable kind of carbon atom.
In about one million million of these carbon atoms, there is only one which has an atomic weight of 14.But nevertheless, this ratio can be determined, for carbon-14 is a radioactive isotope and manifests itself by its radiation.There are many sports restricted to players of a certain age (e.g.16 and under, 18 and under, etc.) What if a person is older and fakes his birth certificate to say that he is younger? Can we determine such a person's age by radiocarbon dating methods or other means? That doesn't mean we can't make a decent guess by other methods.There is an interesting case of a 33 year old Texas woman who enrolled in 10th grade in Texas.
She said she had no transcripts because she had been homeschooled. It also happened in the Little Leagues World Series, if I remember correctly.Scientists across countless disciplines rely on it to date objects that are tens of thousands of years old. An analysis by Heather Graven, a climate-physics researcher at Imperial College London, finds that today's rate of fossil-fuel emissions is skewing the ratio of carbon that scientists use to determine an object's age.Combustion of fossil fuels is “diluting the fraction of atmospheric carbon dioxide containing radiocarbon,” Graven told , the large amount of carbon dioxide in the atmosphere will make new organic material appear to be 1,000 years old based on today’s carbon-dating models.Global levels of carbon-14 (14C) have been carefully recorded over time.In one 2010 study, forty-four teeth from 41 individuals (one per individual) were analyzed using aspartic acid racemization analysis of tooth crown dentin or radiocarbon analysis of enamel.______________________________ __________________________________________________ the following section is from The graphs are taken from a video by The Scientific American that explains carbon dating in a very straight-forward 2 minutes.