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06-Feb-2017 23:55

Douglass passed away just two years after Libby received the Nobel Prize for his work in 1960.

Radiocarbon Dating Tree Rings Today Today, dendrochronologists all over the world follow in Douglass' footsteps, and whenever it is not possible to use tree-ring dating to place wood samples in time, they use radiocarbon to date wood samples.

All of this dating information comes together to produce a chronological backdrop for studying past interactions between people and their environment.

A contemporary tree—that is, a tree that was either just cut down or still living—can tell you not just how many years it has lived, but which years in which it lived. Credit: credit: Mari Cleven But what if the wood is older?

In 1929, with a beam from Show Low, Arizona, Douglass was able to bridge the gap for the first time ever.