CEG\'er
Joined: Sep 2001
Posts: 388 |
Quote:
Not once did I ever say that science was a lie. What I did say was that Darwinism, a theory, is a lie. What I did say above is that Carbon dating has more than once proven itself unreliable. It's funny when a very young skull is carbon dated to be many thousands of years old.
Carbon dating is susceptable to pollutants yes, however, there are lots of other measuring devices that are much more reliable
mind you this is from how stuff works.com Quote:
As soon as a living organism dies, it stops taking in new carbon. The ratio of carbon-12 to carbon-14 at the moment of death is the same as every other living thing, but the carbon-14 decays and is not replaced. The carbon-14 decays with its half-life of 5,700 years, while the amount of carbon-12 remains constant in the sample. By looking at the ratio of carbon-12 to carbon-14 in the sample and comparing it to the ratio in a living organism, it is possible to determine the age of a formerly living thing fairly precisely. A formula to calculate how old a sample is by carbon-14 dating is:
t = [ ln (Nf/No) / (-0.693) ] x t1/2 where ln is the natural logarithm, Nf/No is the percent of carbon-14 in the sample compared to the amount in living tissue, and t1/2 is the half-life of carbon-14 (5,700 years).
So, if you had a fossil that had 10 percent carbon-14 compared to a living sample, then that fossil would be:
t = [ ln (0.10) / (-0.693) ] x 5,700 years t = [ (-2.303) / (-0.693) ] x 5,700 years
t = [ 3.323 ] x 5,700 years
t = 18,940 years old
Because the half-life of carbon-14 is 5,700 years, it is only reliable for dating objects up to about 60,000 years old. However, the principle of carbon-14 dating applies to other isotopes as well. Potassium-40 is another radioactive element naturally found in your body and has a half-life of 1.3 billion years. Other useful radioisotopes for radioactive dating include Uranium -235 (half-life = 704 million years), Uranium -238 (half-life = 4.5 billion years), Thorium-232 (half-life = 14 billion years) and Rubidium-87 (half-life = 49 billion years).
The use of various radioisotopes allows the dating of biological and geological samples with a high degree of accuracy. However, radioisotope dating may not work so well in the future. Anything that dies after the 1940s, when Nuclear bombs, nuclear reactors and open-air nuclear tests started changing things, will be harder to date precisely.
In know that all of this is quite controversial and the dating method has been very hotly debated, you can see one very throrough debate here the radiometric dating game
and you're right evolution is a theory, much as numbers, relativity, and gravity are all theories, adn has been stated before, evolution has undergone many scientific inquiries and until something better comes along to displace it much as relativity displaced gravity which replaced quite a bit before it. However, as said before, you can't "prove" creationism or ID. In fact the given "proof" for ID was actually a proof for evolution, and you're just proving the theory, not a fact, I admit evolution is not fact (can you say that about God?) that is in essence what science is about, knowing that you mihgt not be right but that you have enough proof to show that you might be right. To quote Socrates, "a wise man knows that he does not know"
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