Estimate the age of a bottled wine that has a tritium, 3H, content 60% that of freshly bottled wine. Tritium decays by beta decay and has a half-life of 12.3 yr. 
Definitions:
Psychology
The scientific study of the mind and behavior, including understanding mental functions, brain activities, and individual and social behaviors.
Political Implications
The consequences or effects that a certain policy, event, or decision might have on the political landscape.
Adoption Studies
Research methods in behavioral genetics, looking at the similarities between adopted children and their adoptive and biological parents to understand the influence of genetics versus environment.
Nature
The inherent features, characteristics, or qualities of something, often contrasted with nurture, which refers to the influence of the environment and learning.
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