Creationist claims carbon dating Sexdatting and chatroom
But to answer WHY they do it, it's because they have to.
they have already committed to an explanation "god did it", and if they don't deny key facts about biology, astronomy, geology, chemistry etc then they can't continue to reinforce the belief that they are right, and they can't benefit from the comfort that belief gives them.
I believe the general term for the field is "radioisotope dating", and it basically works by measuring the rate at which radioactive elements turn into other elements.
Let's say you have some element A with a half life of 250 years.
You'd expect to find 100 grams of element A in a sample if it was brand new.
If you find 50 grams, the sample must be about 250 years old.
I don't know much about carbon dating or how it works but i doubt the creationist have got anything right.
They're quite right, you know; carbon dating doesn't work on anything more than a few thousand years old. There are many elements/isotopes that can be used to date things depending on what time scale you want to deal with.
They lie, twist and misrepresent the facts about radiometric dating (and wholly ignore the many other corroborating methods) that tell us the actual age of organic materials to preserve their foundational fantasy at all costs.We can use it to get a range of dates, and use other methods to narrow or verify that range, but any information gleaned will be riddled with words like "approximately" and "estimated".This uncertainty is enough for a dedicated creationist to dismiss the entire science as quackery that's being made up on the spot.When an organism dies, it ceases to take in new carbon-14, and the existing isotope decays with a characteristic half-life (5730 years).The proportion of carbon-14 left when the remains of the organism are examined provides an indication of the time elapsed since its death.