Here once again, we see the remains of mammoths being paraded as evidence for evolution, when quite the opposite is true.
I’m somewhat skeptical that describing a CT scan as high-tech is part of some brainwashing campaign.
Fire damage He says he was originally dubious of untested claims that the 1988 sample was taken from a re-weave.
"It was embarrassing to have to agree with them," Mr Rogers told the BBC News website.
A research paper published in Thermochimica Acta suggests the shroud is between 1,300 and 3,000 years old.
The author dismisses 1988 carbon-14 dating tests which concluded that the linen sheet was a medieval fake.
Scientists, using rigorous methods have established a process to eliminate this problem by calibrating radiocarbon dating results to items of a known age.
"The radiocarbon sample has completely different chemical properties than the main part of the shroud relic," said Mr Rogers, who is a retired chemist from Los Alamos National Laboratory in New Mexico, US.The other is that the decay products of various atoms are always the same. Just looking at this list, I can see that none of these are actually assumptions used by radioactive dating methods and/or they are known issues and compensated for. Something that this particular website has none of. Basically, just like all creationists, they are making stuff up and then hoping you won’t check them on it. 1) atmosphere has always had the same amount of C-14 This is obviously in reference to carbon-14 dating of formerly living tissue.This is also actually kind of trivial and easily determined in the lab. Let’s see what the Missing Universe Museum thinks are the assumptions of radioactive dating methods. I guess we have to start at the top and work our way down… During an organisms life, it takes in CO have the common 6 protons and 6 neutrons. However, due to some interesting nuclear chemistry (which I’ll go into if requested), there’s another version of carbon (called an isotope) that has 6 protons and 8 neutrons. Note that if the number of protons change, then the atom is no longer carbon. Amazingly (and unlike what is claimed by the creationists), scientists have known about a variety of methods that create carbon-14 and how those methods have varied over time. Well, we take a carbon sample from a material of a known age and date that. Basically, the calibration curves are off by no more than 16 years over the historical range (6,000 years or so) and no more than 163 years over the last 20,000 years.But there are also things that are known to be false that are often taken as true, and of such things it is said: “If you repeat a lie often enough, people will believe it, and you will even come to believe it yourself.” One of these urban legends is the idea that the texts or the cartonnage of the Nag Hammadi Library codices have been examined with C-14 radiometric dating. Day Brown wrote (August 3, 2001): This is not even the same century as the one usually credited for the Nag Hammadi Library (the fourth century), let alone accurate information regarding the Carbon 14 dating of the Nag Hammadi codices. Brown himself as a consideration; it is used in reply to another person, who challenges P. The legend was soon to take on more particular shape. 2) The recent GJudas – dated 280 CE ( /- 60 years) Six weeks later, the date had morphed to “350 CE” and the material said to have been dated is connected with the Gospel of Thomas in the re-telling of the legend, along with the first use of the word “citation” in this connection, albeit without any actual citations (July 26, 2006): By my research to date however, there appears to be only two actual carbon dating citations with respect to the new testament texts.Roger Pearse replies (August 4, 2001): This early “fifth century” form of the legend does not recur much, if at all, but in 2006, we find another spotting of the claim of “carbon dating of the Nag Hammadi literature,” although without any specific date, and it is to be quite significant for the development of this urban legend. Brown (June 8, 2006): This is the oldest dated sighting of the “fourth century” form (AKA the “mountainman” form) of the legend. These appear to be the following: 1) Binding on the text – gospel of Thomas (to 350 CE) 2) Binding on the recent gospel Judas (to 280 CE /- 60 years) Notice the amount of uncertainty above (“there appears to be” and “these appear to be”).
Indeed, by doing almost 20 seconds of research on google (type in “variations in C14”, click on Google Scholar) the second link is this article from 1954: Carbon 13 in plants and the relationships between carbon 13 and carbon 14 variations in nature So, this issue has been known about for a long time. Then we compare the two and adjust the radiocarbon date to the known date. That’s less than 1% if you’re interested in that sort of thing. But this is already almost a thousand words and I’ve only done ONE! Long story short, scientists have always known that variations in C-14 concentration happen.