Definition for carbon 14 dating datehookup dating site

) is the time required for a quantity to reduce to half its initial value.

For example, the medical sciences refer to the biological half-life of drugs and other chemicals in the human body. The original term, half-life period, dating to Ernest Rutherford's discovery of the principle in 1907, was shortened to half-life in the early 1950s.The Carbon Dioxide Information Analysis Center (CDIAC), located at the U. Department of Energy's (DOE) Oak Ridge National Laboratory (ORNL), is the primary climate change data and information analysis center for DOE.CDIAC is supported by DOE's Climate and Environmental Sciences Division within the Office of Biological and Environmental Research (BER).The accompanying table shows the reduction of a quantity as a function of the number of half-lives elapsed.Simulation of many identical atoms undergoing radioactive decay, starting with either 4 atoms per box (left) or 400 (right).