Radio Carbon in Fish Eye Lenses

Radio carbon in fish eye lenses can tell us a lot. People born before the nuclear testing age have less and less of it as time passes. Fossil fuels dilute what carbon 14 there is because they are so old. In 19 54, which was the year of the castle bravo test, humans emitted six billion tons of carbon oxide. And that's more than six times more than willard libby first discovered.