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New Method Could Revolutionize Dating of Ancient Treasures
Eurekalert! ^ | Tuesday, March 23, 2010 | Michael Bernstein

Posted on 03/24/2010 5:54:06 PM PDT by SunkenCiv

In conventional dating methods, scientists remove a small sample from an object, such as a cloth or bone fragment. Then they treat the sample with a strong acid and a strong base and finally burn the sample in a small glass chamber to produce carbon dioxide gas to analyze its C-14 content.

Rowe's new method, called "non-destructive carbon dating," eliminates sampling, the destructive acid-base washes, and burning. In the new method, scientists place an entire artifact in a special chamber with a plasma, an electrically charged gas similar to gases used in big-screen plasma television displays. The gas slowly and gently oxidizes the surface of the object to produce carbon dioxide for C-14 analysis without damaging the surface, he said.

(Excerpt) Read more at eurekalert.org ...


TOPICS: History; Science; Travel
KEYWORDS: c14; godsgravesglyphs; radiocarbondating; shroudofturin
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To: SunkenCiv
I haven't got a subscription to Nature, so I can't read the abstract. However, repaired parts of the shroud weren't at issue. As I understood it, the theory works like this:

The cathedral was built with medieval timbers.
These timbers would contain carbon atoms reflecting the ratio of C12to C14 appropriate for the time when they were cut to build the cathedral.
R/C dating operates on the principle that organic material ingests atmospheric carbon and the amount of atmospheric carbon is fixed when the organic material dies.
The atmospheric percentage of C12 to C14 is known, so that if the sample precentage is different, we can apply the decay rate of C14 to determine how many years have elapsed since the material stopped absorbing atmospheric carbon.
But, the fire would have released large amounts of CO2 from the medieval timbers, which would contaminate the entire cloth, not just the parts that were repaired.
The R/C dating method involves releasing CO2 from the material to obtain the carbon needed to study the ratio.
Because the fire contaminated the cloth with CO2 from a later date, the test may not be correct.

This wasn't Bible-thumpers who came up with this. Even if the R/C method proved it to be a forgery, the Shroud of Turin still poses an intriguing mystery - how did they do it? We still don't know.

21 posted on 03/25/2010 9:47:39 PM PDT by sig226 (Mourn this day, the death of a great republic. March 21, 2010)
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To: SunkenCiv

There’s nothing that could convince some folks here that the earth is over 10,000 years old.


22 posted on 03/26/2010 5:01:28 PM PDT by cerberus
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To: SunkenCiv

Sorry Sunken...I know that’s a fake...she is older than that!


23 posted on 03/26/2010 5:17:24 PM PDT by GGpaX4DumpedTea (I am a tea party descendant - steeped in the Constitutional legacy handed down by the Founders)
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To: cerberus

“There’s nothing that could convince some folks here that the earth is over 10,000 years old.”

I believe the earth and the universe is ‘eons’ old. I believe this creation is about 6,000 years old. It seems reasonable that the unexplained, ‘acient’ fossil evidence is from a previous creation, on this same earth. It is likely that the dinasaurs existed in that previous creation. The ‘Great Ice Age’ that covered much or most of the earth with glaciers probably was before this creation.

Lucifer, when he was still ‘one of the good guys’ was given dominion over the earth - I believe that was dominion over a creation - living, breathing creatures, likely humanoids. It seems likely that when Lucifer (Satan) became the would-be-usurper and was cast out of heaven, the creation existing then was destroyed, likely by flood and deep freeze.

Just my thoughts. Of course, none of this matters. We will be shown more someday, if it is important, and we will know. ‘Til then, just relax and enjoy the ride, focusing on Him! He is in control!


24 posted on 03/26/2010 5:33:33 PM PDT by GGpaX4DumpedTea (I am a tea party descendant - steeped in the Constitutional legacy handed down by the Founders)
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To: GGpaX4DumpedTea

Interesting thoughts.....I don’t quite see it that way myself, but thanks.


25 posted on 03/27/2010 11:32:32 AM PDT by cerberus
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To: GGpaX4DumpedTea

;’)


26 posted on 03/28/2010 4:29:04 PM PDT by SunkenCiv ("Fools learn from experience. I prefer to learn from the experience of others." -- Otto von Bismarck)
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To: SunkenCiv
New Method Could Revolutionize Dating of Ancient Treasures

Sounds like a handbook for gigolos who go after rich prunes.

27 posted on 03/28/2010 4:32:15 PM PDT by 70times7 (Serving Free Republics' warped and obscure humor needs since 1999!)
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To: 70times7

Oh sure, look on the bright side.


28 posted on 03/28/2010 6:13:38 PM PDT by SunkenCiv ("Fools learn from experience. I prefer to learn from the experience of others." -- Otto von Bismarck)
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To: SunkenCiv
However, the radiocarbon dating did not prevent many scholars from formulating various hypotheses over the validity of the carbon-14 tests, including the possibility that they were conducted on a sample taken from a medieval patch.

They were conducted on a sample taken from a medieval patch. I wonder what this technique would do to other evidence such as pollen. Wash it away?
29 posted on 12/24/2010 7:01:08 AM PST by aruanan
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 GGG managers are SunkenCiv, StayAt HomeMother & Ernest_at_the_Beach
Just updating the GGG info, not sending a general distribution.

To all -- please ping me to other topics which are appropriate for the GGG list.


30 posted on 09/20/2012 5:47:42 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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