How do you use carbon 14 dating

As for still earlier periods, carbon-14 dating excited scientists (including some climate scientists) largely because it might shed light on human evolution — the timing of our development as a species, and how climate changes had affected that.(2) It was especially fascinating to discover that our particular species of humans arose something like 100,000 years ago, no doubt deeply influenced by the ice ages.(3) A few scientists noticed that the techniques might also be helpful for the study of climate itself.From its origins in Chicago, carbon-14 dating spread rapidly to other centers, for example the grandly named Geochronometric Laboratory at Yale University.

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Tricks also spread through visits between laboratories and at meetings, and sometimes even through publications.

The radioactive isotope carbon-14 is created in the upper atmosphere when cosmic-ray particles from outer space strike nitrogen atoms and transform them into radioactive carbon.

Some of the carbon-14 might find its way into living creatures.

One application was a timetable of climate changes for tens of thousands of years back.

Many of the traditional chronologies turned out to be far less accurate than scientists had believed — a bitter blow for some who had devoted decades of their lives to the work.

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