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History, anthropology, and archaeology are three distinct but closely related bodies of knowledge that tell man of his present by virtue of his past.Historians can tell what cultures thrived in different regions and when they disintegrated.One way to determine the age of a victim is by examining the eyes. The soulless eyes of a murder victim allow investigators to determine their age at the time of death. You’re probably familiar with how to tell the age of a tree by examining a split piece and counting the number of rings. Most prominent in the 1960’s and 70’s, particles of radiation released into the atmosphere while testing nuclear weapons.Over the years—decades—these particles have fallen to trace proportions. Actually, many carbon compounds are crucial to our way of life.Forensics, or forensic science, is always evolving to better aid in the apprehension of criminals.But what if a killer leaves his victim with no fingertips, DNA, or teeth? Each of us, whether we realize it or not, have been exposed to naturally occurring levels of radiation.
Crystallins are microscopic proteins that bind together and collect on the lens of the eye.
Neutrons, however, travel deep into the atmosphere and collide with the nuclei of atoms in the lower atmosphere.
Because of the cosmic bombardment less than one-millionth of 1% of all the carbon on earth is in the form of carbon-14.
Archaeology and other human sciences use radiocarbon dating to prove or disprove theories.
Over the years, carbon 14 dating has also found applications in geology, hydrology, geophysics, atmospheric science, oceanography, paleoclimatology, and even biomedicine.