Nuclear bomb testing in the 1950s has resulted in an unexpected occurrence: it has turned the teeth of all humans on the planet radioactive. Researchers discovered this phenomenon while trying to determine the age of deceased individuals. They have found that all our teeth are, in fact, radioactive clocks.
Above ground nuclear tests in the middle of the Century introduced significant amounts of radioactive carbon into the atmosphere—and into all living things. And while our skin cells are constantly regenerating, the enamel in our teeth is only made once, bearing signs of the atmosphere in which they were created. Forbes explains the science:
The element carbon usually has six protons and six neutrons, and when it does it is called carbon 12. But cosmic rays streaming into our atmosphere occasionally smash into the abundant nitrogen in our atmosphere and create a form of carbon with two extra neutrons called carbon 14…. Continue reading