History of carbon dating
Claims have been made of the method being calibrated back to 10,000 years using dendrochronology, C ratios the same as the atmosphere.For example, it is well known that carbon dating cannot be used on many types of marine life due to reservoirs of "old" carbon held in sedimentary rocks.
The fraction of the radiation transmitted through the dead skin layer is estimated to be 0.11.
Small amounts of carbon-14 are not easily detected by typical Geiger–Müller (G-M) detectors; it is estimated that G-M detectors will not normally detect contamination of less than about 100,000 disintegrations per minute (0.05 µCi).
Scientists at the University of Oxford had already revealed that the parchment was among the oldest known Koranic texts in the world, but now several historians say it could be so old that it pre-dates the Muslim prophet, thus contradicting traditional accounts of his life and radically altering “the edifice of Islamic tradition.” The dating reveals the text to have been written between AD568 and 645, while the dates of Mohammed’s life are traditionally given as AD570 to 632.
This means that at the very latest it was written before the first formal texts were supposed to have been collated, and at the earliest it was written before or shortly after Mohammed was born.
When it comes to dating archaeological samples, several timescale problems arise.
For example, Christian time counts the birth of Christ as the beginning, AD 1 (Anno Domini); everything that occurred before Christ is counted backwards from AD as BC (Before Christ).
Needless to say, Muslim academics have disputed the claims.
Mustafa Shah of London’s School of Oriental and African Studies (SOAS) said: “If anything, the manuscript has consolidated traditional accounts of the Koran’s origins.” Meanwhile, Shady Hekmat Nasser from the University of Cambridge said: “We already know from our sources that the Koran was a closed text very early on in Islam, and these discoveries only attest to the accuracy of these sources.” Dr Keith Small, a Koranic manuscript consultant at Oxford’s Bodleian Library, admits the carbon dating applies to the parchment, not the ink, while the calligraphy is characteristic of a later style.
The Mayan calendar used 3114 BC as their reference.
More recently is the radiocarbon date of 1950 AD or before present, BP.
Carbon dating, or carbon-14 dating, is a method for comparing the ages of organic materials such as bones or artifacts made from anything that once lived.Tags: Adult Dating, affair dating, sex dating