Radioactive dating is helpful for figuring out the age of ancient things.Carbon-14 (C-14), a radioactive isotope of carbon, is produced in the upper atmosphere by cosmic radiation.
To understand this, you must first understand radioactivity and decay.This is called the half-life—the amount of time required for one-half of a given number of atoms to disintegrate. The plot of the number of tiles as a function of the number of turns looks like this: Again, I made radioactive spheres disappear when they decayed.This is fine, because when carbon-14 decays, it produces nitrogen-14. But you could imagine that if you knew that the sample started with 20 percent blue spheres and you knew their half-life, then you could determine the age by examining one frame from the animation.This is exactly how carbon dating works, but with dinosaurs instead of models.If you're seeing this message, it means we're having trouble loading external resources on our website.
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