Pieter Maris and James Vary, Iowa State University (IMAGE)

Iowa State University

Pieter Maris and James Vary, Iowa State University

Caption

Iowa State University physicists, left to right, Pieter Maris and James Vary have used supercomputing power to solve the puzzle of the long, slow decay of carbon-14. That long half-life makes carbon-14 a useful tool to determine the ages of skeletons and other artifacts.

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Photo by Bob Elbert/Iowa State University

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