Carbon 14 dating dinosaur bones
For some real examples download the PDF version of this answer here To obtain C14 dates for dinosaur bones means either: a) the bones couldn’t possibly be so old, and/or b) Carbon 14 doesn’t work One intriguing thing about radioactive carbon is because it has such a short half-life, then the closer you get to the present the more reliable it becomes.
So the amount of radioactive carbon in your body at death, from then on will simply disintegrate by radioactive decay.Answer by John Mackay Many of you will realise that this is a totally misplaced question, albeit probably a genuine one.So we will take the opportunity of reminding folks that Carbon 14 dating, even if it did work, wouldn’t give billions of years for anything.Whilst it is so casually overlooked these days, the first inventor of the Carbon 14 method Willard Libby is definitely on record that the thing surprised him most, was that he didn’t have any written records to compare his Carbon 14 method against that was older than 5,000 years.But he didn’t let that bother him in any way, shape or form.These and other radiation sources are one reason we don’t live to be “as old as Methuselah”.
But while we are alive, what goes in also comes out because you breathe out CO2, which includes some of the radioactive stuff.
The simple principle is the longer you have been dead, the less radioactivity you will have in your body.
Ultimately it will be so little that it will be immeasurable. However, to use such a method you must assume the world that has always functioned the same as today.
So when you set your newly invented C14 Clock, as Willard Libby did when he developed the method, it has to have a known rate of decay that can be measured against known historical time lapses, e.g..
the Birth of Christ, the reign of Julius Caesar, etc.
Carbon 14 is a short lived radioactive element with a half-life is only 5,730 years approximately.