News tagged with isotopes
Hospital scanner could curb nuclear waste threat
Medical equipment used for diagnosis of patients with heart disease and cancer could be a key weapon in stopping nuclear waste seeping into the environment, according to new research.
Jan 29, 2010 |
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Fossil Leaves Depict Warm, High Sierra Nevada Mountains in Ancient Past
(PhysOrg.com) -- A team led by Yale University geologists has reconstructed the climate and elevation of California’s northern Sierra Nevada mountains using organic materials derived from ancient leaves and ...
Space & Earth / Earth Sciences
Jan 06, 2010 |
4.5 / 5 (8) |
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Researchers recalculate age of Solar System
(PhysOrg.com) -- Lead-lead (Pb-Pb) dating is among the most widely used radiometric dating techniques to determine the age of really old things, such as the age of the Earth or the Solar System. However, recent ...
Space & Earth / Space Exploration
Jan 04, 2010 |
4.6 / 5 (13) |
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Study reveals how Arctic food webs affect mercury in polar bears
With growing concerns about the effects of global warming on polar bears, it's increasingly important to understand how other environmental threats, such as mercury pollution, are affecting these magnificent Arctic animals.
Dec 08, 2009 |
3 / 5 (2) |
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Carbon and oxygen in tree rings can reveal past climate information
The analysis of carbon and oxygen isotopes embedded in tree rings may shed new light on past climate events in the Mackenzie Delta region of northern Canada.
Space & Earth / Earth Sciences
Dec 03, 2009 |
3 / 5 (4) |
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Dating the Bronze Age
ANSTO (Australian Nuclear Science and Technology Organisation) research has shown that an area of desert in north-western China was once a thriving Bronze Age manufacturing and agricultural site. The new findings ...
Other Sciences / Archaeology & Fossils
Dec 02, 2009 |
4.3 / 5 (4) |
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Big freeze plunged Europe into ice age in months
In the film, 'The Day After Tomorrow' the world enters the icy grip of a new glacial period within the space of just a few weeks. Now new research shows that this scenario may not be so far from the truth after all.
Space & Earth / Earth Sciences
Nov 30, 2009 |
4.1 / 5 (18) |
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Supervolcano eruption -- in Sumatra -- deforested India 73,000 years ago
A new study provides "incontrovertible evidence" that the volcanic super-eruption of Toba on the island of Sumatra about 73,000 years ago deforested much of central India, some 3,000 miles from the epicenter, ...
Space & Earth / Earth Sciences
Nov 23, 2009 |
4.5 / 5 (17) |
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Proton's party pals may alter its internal structure
A recent experiment at the DOE's Thomas Jefferson National Accelerator Facility has found that a proton's nearest neighbors in the nucleus of the atom may modify the proton's internal structure.
Nov 18, 2009 |
4.6 / 5 (22) |
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Earth's early ocean cooled more than a billion years earlier than thought (w/ Video)
(PhysOrg.com) -- The scalding-hot sea that supposedly covered the early Earth may in fact never have existed, according to a new study by Stanford University researchers who analyzed isotope ratios in 3.4 ...
Space & Earth / Earth Sciences
Nov 11, 2009 |
4.3 / 5 (12) |
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Atomic Particles Help Solve Planetary Puzzle
(PhysOrg.com) -- A University of Arkansas professor and his colleagues have shown that the Earth's mantle contains the same isotopic signatures from magnesium as meteorites do, suggesting that the planet formed ...
Space & Earth / Earth Sciences
Nov 10, 2009 |
4.5 / 5 (12) |
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Are the Alps growing or shrinking?
The Alps are growing just as quickly in height, as they are shrinking. This paradoxical result could be proven by a group of German and Swiss geoscientists. Due to glaciers and rivers about exactly the same amount of material ...
Space & Earth / Earth Sciences
Nov 05, 2009 |
2 / 5 (1) |
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High-performance plasmas may make reliable, efficient fusion power a reality
In the quest to produce nuclear fusion energy, researchers from the DIII-D National Fusion Facility have recently confirmed long-standing theoretical predictions that performance, efficiency and reliability ...
Nov 02, 2009 |
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Notorious 'man-eating' lions of Tsavo likely ate about 35 people -- not 135, scientists say
The legendary "man-eating lions of Tsavo" that terrorized a railroad camp in Kenya more than a century ago likely consumed about 35 people--far fewer than popular estimates of 135 victims, according to a new ...
Other Sciences / Archaeology & Fossils
Nov 02, 2009 |
4.7 / 5 (3) |
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Snail fossils suggest semiarid eastern Canary Islands were wetter 50,000 years ago
Fossil land snail shells found in ancient soils on the subtropical eastern Canary Islands show that the Spanish archipelago off the northwest coast of Africa has become progressively drier over the past 50,000 years.
Space & Earth / Earth Sciences
Oct 27, 2009 |
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