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10 Things ALL Men Do When They Are In Love
It's almost Valentine's Day, but this week we're not talking about love. Instead, we explore the other forces that drive our romantic relationships. Anne Bowers wanted her boyfriend to buy her a used ring. Second-hand engagement rings are hundreds or even thousands of dollars less expensive than new ones. But when it came time for him to propose, her husband went for a new ring. He said he just couldn't buy a second-hand ring. Anne Bowers, a sociologist, recently conducted a study showing that many people behave exactly like her husband.
Carbon Dating: The History Of Life On Earth - TNTM
Geologists do not use carbon-based radiometric dating to determine the age of rocks. Carbon dating only works for objects that are younger than about 50, years, and most rocks of interest are older than that. Carbon dating is used by archeologists to date trees, plants, and animal remains; as well as human artifacts made from wood and leather; because these items are generally younger than 50, years. Carbon is found in different forms in the environment — mainly in the stable form of carbon and the unstable form of carbon Over time, carbon decays radioactively and turns into nitrogen.