Radiocarbon 14 dating works as far back as

And say that every 5,568 years you add another gallon of water to the mixture.

Doing that basically cuts the concentration of blue dye in half.

Unfortunately it is not precise enough to date some really old things with much certainty, and it can only be used to date stuff that was once alive.

by Helen Fryman Question: What about radiocarbon dating? Response: I asked several people who know about this field. (1.) C14 dating is very accurate for wood used up to about 4,000 years ago.

Since it takes 5,568 years for an amount of 14C to decay by 50 percent (half), if a specimen has one half the amount of 14C as a modern piece of organic matter might have, we conclude it is about 5,568 years old.

Here's an analogy: Imagine you have a gallon of water to which you add one ounce of blue dye.

We believe all the dates over 5,000 years are really compressible into the next 2,000 years back to creation.You then take a gallon of that diluted mixture and add another gallon of pure water to it 5,568 years later.The concentration of blue dye is cut in half again.So when you hear of a date of 30,000 years for a carbon date we believe it to be early after creation and only about 7,000 years old.If something carbon dates at 7,000 years we believe 5,000 is probably closer to reality (just before the flood).

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