Greenland ice core analysis shows drastic climate change near end of last ice age
Space & Earth / Earth Sciences
Jun 19, 2008 |
4.4 / 5 (48) |
15
[B]Temperatures spiked 22 degrees F in just 50 years, researchers say[/B] Information gleaned from a Greenland ice core by an international science team shows that two huge Northern Hemisphere temperature spi ...
Radiation for health
Jun 19, 2008 |
4.8 / 5 (33) |
17
Could exposure to low doses of radiation cure our ills? For decades, we have been told that exposure to radiation is dangerous. In high doses it is certainly lethal and chronic exposure is linked to the development of cancer. ...
Scientists fix bugs in our understanding of evolution
Jun 19, 2008 |
4.3 / 5 (29) |
8
[B]A new computational tool allows the most accurate insights into evolution ever[/B] What makes a human different from a chimp? Researchers from the European Molecular Biology Laboratory's European Bioinformatics Ins ...
Gallons per mile would help car shoppers make better decisions
Jun 19, 2008 |
2.9 / 5 (42) |
22
Posting a vehicle's fuel efficiency in "gallons per mile" rather than "miles per gallon" would help consumers make better decisions about car purchases and environmental impact, researchers from Duke University's Fuqua School ...
Exciton-based circuits eliminate a 'speed trap' between computing and communication signals
Jun 19, 2008 |
4.7 / 5 (22) |
3
Particles called excitons that emit a flash of light as they decay could be used for a new form of computing better suited to fast communication, physicists at UC San Diego have demonstrated.
MIT unlocks mystery behind brain imaging
Jun 19, 2008 |
4.8 / 5 (20) |
0
[B]Star-shaped brain cells shown to play key role[/B] In work that solves a long-standing mystery in neuroscience, researchers at MIT's Picower Institute for Learning and Memory have shown for the first time that star-shaped bra ...
Tiny refrigerator taking shape to cool future computers
Jun 19, 2008 |
4.4 / 5 (22) |
9
Researchers at Purdue University are developing a miniature refrigeration system small enough to fit inside laptops and personal computers, a cooling technology that would boost performance while shrinking the size of computers.
Ice cores map dynamics of sudden climate changes
Jun 19, 2008 |
4.9 / 5 (17) |
1
New, extremely detailed data from investigations of ice cores from Greenland show that the climate shifted very suddenly and changed fundamentally during quite few years when the ice age ended. Researchers ...
Ancient fort opens new chapter in First Nations' history
Other Sciences / Archaeology & Fossils
Jun 19, 2008 |
4.5 / 5 (16) |
0
[B]University of Calgary archaeologists join the Blackfoot in studying unusual woodland-style settlement on Canadian plains[/B] A fortified village that pre-dates European arrival in Western Canada and is the only one of ...
Microscopic 'clutch' puts flagellum in neutral
Biology /
Jun 19, 2008 |
4.7 / 5 (15) |
5
A tiny but powerful engine that propels the bacterium Bacillus subtilis through liquids is disengaged from the corkscrew-like flagellum by a protein clutch, Indiana University Bloomington and Harvard Univer ...
Lost in the supermarket?
Jun 19, 2008 |
3.8 / 5 (15) |
0
[B]Why the 'cheap food revolution' hasn't reached poor countries[/B] Most people don't think twice as they pass spring apples from the southern hemisphere as they enter the supermarket, but they are participating in a c ...
Desert plant may hold key to surviving food shortage
Biology /
Jun 19, 2008 |
3.8 / 5 (14) |
3
The plant, Kalanchoe fedtschenkoi, is unique because, unlike normal plants, it captures most of its carbon dioxide at night when the air is cooler and more humid, making it 10 times more water-efficient than major crops such ...
Thinking ahead: Bacteria anticipate coming changes in their environment
Biology /
Jun 19, 2008 |
4.5 / 5 (11) |
0
Microbes may be smarter than we think. A new study by Princeton University researchers shows for the first time that bacteria don't just react to changes in their surroundings -- they anticipate and prepare for them.
Scientists may have solved an ecological riddle
Jun 19, 2008 |
3.8 / 5 (13) |
1
In a paper published this week in Nature, the authors – including Dr Ying Ping Wang from The Centre for Australian Weather and Climate Research – say that nitrogen fixation has long been recognised as an important proces ...
Active submarine volcanoes found near Fiji
Space & Earth / Earth Sciences
Jun 19, 2008 |
4.7 / 5 (9) |
0
Several huge active submarine volcanoes, spreading ridges and rift zones have been discovered northeast of Fiji by a team of Australian and American scientists aboard the Marine National Facility Research ...
