In tree rings, Japanese scientists find 8th-century mystery
In the late eighth century, Earth was hit by a mystery blast of cosmic rays, according to a Japanese study that found a relic of the powerful event in cedar trees.
In the late eighth century, Earth was hit by a mystery blast of cosmic rays, according to a Japanese study that found a relic of the powerful event in cedar trees.
Earth Sciences
Jun 4, 2012
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If you think a Chihuahua doesn't have much in common with a Rottweiler, you might be on to something.
Archaeology
Jan 23, 2012
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The long, slow decay of carbon-14 allows archaeologists to accurately date the relics of history back to 60,000 years.
General Physics
May 26, 2011
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Imagine loosening the screw-top of a soda bottle and hearing the carbon dioxide begin to escape. Then imagine taking the cap off quickly, and seeing the beverage foam and fizz out of the bottle. Then, imagine the pressure ...
Earth Sciences
Aug 25, 2010
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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 ...
Analytical Chemistry
May 19, 2010
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Two decades of atomic bomb testing in the atmosphere are yielding an unexpected bonus for consumers, scientists reported here today at the 239th National Meeting of the American Chemical Society (ACS). It's a new test to ...
Analytical Chemistry
Mar 22, 2010
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This is shown by samples of ancient DNA, analysed by an international team of research scientists under the leadership of Professor Eske Willerslev from Copenhagen University. Analyses of ancient DNA thereby once again revoke ...
Archaeology
Dec 14, 2009
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On the basis of prior research, the identity of the Pitted Ware Culture from the Stone Age has been characterized as hard-core sealers, or possibly even related to Inuits of the Baltic Sea. Now, researchers have discovered ...
Archaeology
Apr 4, 2019
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Just like a teenager wanting to be older, volcanoes can lie about their age, or at least about their activities. For kids, it might be little white lies, but volcanoes can tell big lies with big consequences.
Earth Sciences
Oct 5, 2018
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A study has been able to accurately determine the age of the Neanderthal remains found in the El SidrĂ³n cave (Asturias, Spain) for which previous studies had provided inexact measurements. The application of a pre-treatment ...
Archaeology
Apr 2, 2013
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