Tree ring records indicate that in 774-775 CE, atmospheric carbon-14 levels increased substantially. Researchers suggest that a solar proton event may have been the cause. In solar proton events, large numbers of high-energy ...
Earth Sciences
Mar 15, 2013
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(Phys.org)—If a nuclear device were to unexpectedly detonate anywhere on Earth, the ensuing effort to find out who made the weapon probably would be led by aircraft rapidly collecting airborne radioactive particles for ...
Engineering
Jan 10, 2013
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(Phys.org)—Astrophysicists Adrian Melott and Brian Thomas of the University of Kansas and Washburn University respectively, have published a "brief communication arising" piece in the journal Nature suggesting that the ...
How much carbon is stored in the organic soils of tropical wetlands is becoming an important question as erosion, agriculture, and global climate change slowly set into motion a series of processes that could potentially ...
Earth Sciences
Sep 20, 2012
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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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(PhysOrg.com) -- According to a newly released report in The Proceedings of the National Academy of Sciences, a newly refined method of radiocarbon dating has found that Neanderthals died off much earlier than originally ...
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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Name: Khoma. Looks like: A baby mammoth. Age: somewhere above 50,000 years.
Archaeology
Jun 21, 2010
3
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