(November 20, 2009 at 10:43 pm)Tiberius Wrote:(November 20, 2009 at 4:53 pm)rjh4 Wrote: That's why you take different measurements with different samples and different equipment. I notice you have ignored my challenge. Please find me one example (just one) and I will take a look.
There have been technique changes, particularly in radiocarbon 14 dating methods over the 60 years that the process has been used. For example, early on they would take a piece of wood from, say, a door post and date it. The problem with this is that c14 only tells us the date that the tree died. In a dry climate that door post might have lasted for 150 years and when you add that to the +/- variable of the test you could easily get a date with is nearly 3 centuries off.
The technique has been refined so that they now look for cereal grains or pollen grains (short-lived specimens) and the have the +/- down to 20 years. Theists look at these changes as a way to denounce the entire test.
They are wrong but then they are wrong about many things.
