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Latest Radiometric dating Stories

8c35de58d95109f5fce4afab2f8684d91
2010-09-16 07:55:26

Recent puzzling observations of tiny variations in nuclear decay rates have led some to question the science of using decay rates to determine the relative ages of rocks and organic materials. Scientists from the National Institute of Standards and Technology (NIST), working with researchers from Purdue University, the University of Tennessee, Oak Ridge National Laboratory and Wabash College, tested the hypothesis that solar radiation might affect the rate at which radioactive elements decay...

2010-09-15 23:27:39

Recent puzzling observations of tiny variations in nuclear decay rates have led some to question the science of using decay rates to determine the relative ages of rocks and organic materials. Scientists from the National Institute of Standards and Technology (NIST), working with researchers from Purdue University, the University of Tennessee, Oak Ridge National Laboratory and Wabash College, tested the hypothesis that solar radiation might affect the rate at which radioactive elements decay...

f9637cf57cc8a282734cfa30f398e1e61
2010-06-18 06:15:00

After carbon dating plant remains obtained from United States and European museums, scientists have established for the first time clear dates for the ruling dynasties of ancient Egypt, according to research published Thursday. The results will force historians to abandon previous records and revise them for the two millennia when ancient Egypt dominated the Mediterranean world and hopefully end debate over the subject once and for all. An international team, led by Professor Christopher...

0a4811a80d9935b760e790cc6f0edec71
2010-05-19 14:03:24

In a large natural disaster, such as the Haitian earthquake earlier this year, or in an unsolved homicide case, knowing the birth date of an individual can guide forensic investigators to the correct identity among a large number of possible victims. Livermore researcher Bruce Buchholz and colleagues at the Karolinska Institute are looking at victim's teeth to determine how old they are at the time of death. Using the Lawrence Livermore's Center for Accelerator Mass Spectrometry, Buchholz...

211dea0e408e03adc0d242ee6f89b9631
2010-03-23 10:31:20

Scientists today described development of a new method to determine the age of ancient mummies, old artwork, and other relics without causing damage to these treasures of global cultural heritage. Reporting at the 239th National Meeting of the American Chemical Society (ACS), they said it could allow scientific analysis of hundreds of artifacts that until now were off limits because museums and private collectors did not want the objects damaged. "This technique stands to revolutionize...

52d67f2bd61f258caa0ecfef6063e1391
2010-02-12 09:35:00

Researchers at Queen's University have helped produce a new archaeological tool which could answer key questions in human evolution. The new calibration curve, which extends back 50,000 years is a major landmark in radiocarbon dating-- the method used by archaeologists and geoscientists to establish the age of carbon-based materials. It could help research issues including the effect of climate change on human adaption and migrations. The project was led by Queen's University Belfast through...

2009-05-21 14:47:48

British scientists say they have developed a new technique called rehydroxylation for dating archaeological objects by using fire and water. Researchers at the Universities of Manchester and Edinburgh said their simple method promises to become a significant technique for dating ceramic materials, just as radiocarbon dating has become for organic materials such as bone or wood. The scientists said the new technique can be used on fired clay ceramics, such as bricks, tile and pottery. Working...

2009-03-13 09:57:48

 A new dating method has found that "Peking Man" is around 200,000 years older than previously thought, suggesting he somehow adapted to the cold of a mild glacial period.A dating method developed by a Purdue University researcher allowed a more accurate determination of the age of the Zhoukoudian, China, site of remains of Homo erectus, commonly known as "Peking Man." The site was found to be 680,000-780,000 years old. Earlier estimates put the age at 230,000-500,000 years old.Darryl...

2008-12-12 07:11:00

AKRON, Ohio, Dec. 12 /PRNewswire/ -- An Ohio-based company has successfully grown the first Low Radiocarb(TM) food, in this case soybeans, with significantly lower levels of harmful radioactive carbon-14 than normally found in food. Infants and children nourished with safer, low radiocarbon LifeBlocks(TM) foods will suffer tens of billions fewer genetic damage events over their lifetime. By reducing genetic damage, risks of cancer and birth defects may also be reduced. Since genetic...

fca8e488602bee743bafc47c4c0e60b51
2008-09-28 10:25:00

A strip of bedrock located in the eastern area of Canada's Hudson Bay was discovered to have the oldest rocks on Earth, said scientists on Thursday. The rocks were formed about 4.28 billion years ago, shortly after the planet was created. It might even contain evidence of movement by ancient creatures. If these findings are indeed correct, this would definitely be the first proof of life on Earth. However, co-author of the article, Don Francis, warned that this had not been verified as of...


Word of the Day
pungle
  • To take pains; labor assiduously with little progress.
This word comes from the Spanish 'pongale,' put it.
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