So, we have a “clock” which starts ticking the moment something dies.
However, there is strong evidence which suggests that radioactive decay may have been greatly accelerated in the unobservable past.
If the ratio is a quarter of what it should be (one in every four trillion) we can assume the creature has been dead for 11,460 year (two half-lives).
Obviously, this works only for things which were once living.
Hundreds people have already signed in, so what are you waiting for?
Investigative journalist Eliza Griswold ’95 has spent the last seven years roaming through Africa and Asia along the line of latitude 700 miles north of the equator, exploring the faith-based conflicts there that date back centuries.
More than half of the world’s Muslims and some 60 percent of its Christians live along this aptly called fault line, known as the 10th parallel.
The new isotope is called "radiocarbon" because it is radioactive, though it is not dangerous.
So, if we find the remains of a dead creature whose C-12 to C-14 ratio is half of what it's supposed to be (that is, one C-14 atom for every two trillion C-12 atoms instead of one in every trillion) we can assume the creature has been dead for about 5,730 years (since half of the radiocarbon is missing, it takes about 5,730 years for half of it to decay back into nitrogen).