Earth

"Absolute Salinity" forces change to definition of seawater

The world's peak ocean science body has adopted a new definition of seawater developed by Australian, German and US scientists to make climate projections more accurate.

In Paris late last month the General Assembly of UNESCO's Intergovernmental Oceanographic Commission (IOC) accepted the case for the introduction of a new international thermodynamic description of seawater, cast in terms of a new salinity variable called Absolute Salinity.

Scientists ever closer to unveiling quantum information networks

Scientists at MIT have figured out a key step toward the design of quantum information networks. The results are reported in the July 20th issue of Physical Review Letters and highlighted in APS's on-line journal Physics (physics.aps.org).

'Invisibility Cloak' May Protect Against Earthquakes

Research at the University of Liverpool has shown it is possible to develop an ‘invisibility cloak’ to protect buildings from earthquakes.

The seismic waves produced by earthquakes include body waves which travel through the earth and surface waves which travel across it. The new technology controls the path of surface waves which are the most damaging and responsible for much of the destruction which follows earthquakes.

'Motion picture' of past warming paves way for snapshots of future climate change

MADISON — By accurately modeling Earth's last major global warming — and answering pressing questions about its causes — scientists led by a University of Wisconsin-Madison climatologist are unraveling the intricacies of the kind of abrupt climate shifts that may occur in the future.

Research indicates ocean current shutdown may be gradual

CORVALLIS, Ore. - The findings of a major new study are consistent with gradual changes of current systems in the North Atlantic Ocean, rather than a more sudden shutdown that could lead to rapid climate changes in Europe and elsewhere.

The research, based on the longest experiment of its type ever run on a "general circulation model" that simulated the Earth's climate for 21,000 years back to the height of the last Ice Age, shows that major changes in these important ocean current systems can occur, but they may take place more slowly and gradually than had been suggested.

CH503 - newly discovered pheromone is the stop sign female flies use

BOSTON, Mass. (July 16, 2009) -- There she is again: the cute girl at the mall. Big eyes. Long legs. She smiles at you. You're about to make your move… but wait! What's she wearing? It's a letterman jacket, one clearly belonging to a hulking football player named "Steve." This girl is taken. Wisely, you move on.

Wii vindicated: active video games a good alternative for kids

OKLAHOMA CITY – Scientists at the University of Oklahoma Health Sciences Center have found that playing active video games like the Wii can be an effective substitute for moderate exercise. The findings appear this week in the journal Pediatrics from the American Academy of Pediatrics.

While the pediatricians don't recommend children stop playing outside or exercising, their research shows that active video games offer a great alternative to moderate exercise for children of today's generation who are otherwise sedentary and at high risk for obesity and diabetes.

Quantum goes massive

An astrophysics experiment in America has demonstrated how fundamental research in one subject area can have a profound effect on work in another as the instruments used for the Laser Interferometer Gravitational-Wave Observatory (LIGO) pave the way for quantum experiments on a macroscopic scale.

Thanks dung beetles! Fossilized feces reveals secret ecology of lost world

A new study of 30 million year old fossil 'mega-dung' from extinct giant South American mammals reveals evidence of complex ecological interactions and theft of dung-beetles' food stores by other animals.

The dung-beetle has fallen on hard times. Once worshipped by the Ancient Egyptians its status has now slipped to that of unsung and forgotten hero, the butt of scatological jokes.

Study examines atmospheric mercury levels

When it comes to air-quality advisories, city residents are no strangers. But smog is made up of an array of air pollutants, including mercury. One Ryerson University researcher has found that during summer higher levels of mercury species exist in the urban atmosphere than rural regions.

Julia Lu is an Associate Professor in Ryerson’s Department of Chemistry and Biology and her main focus is mercury, an element that can be found in many unique places.

New hurricane forecasting model may predict storms with surprising accuracy

TALLAHASSEE, Fla. -- Scientists at The Florida State University's Center for Ocean-Atmospheric Prediction Studies (COAPS) have developed a new computer model that they hope will predict with unprecedented accuracy how many hurricanes will occur in a given season.

New clean energy idea for NYC

An NJIT architecture professor and an architecture student have designed a network of modular floating docks to harness clean energy for New York City. The proposal was featured this week in Metropolis magazine.

Researchers improve Einstein's theory of relativity approximation

In his discussion of accelerated motion in The Meaning of Relativity , Albert Einstein made an approximation that allowed him to develop the theory of relativity further. Einstein apparently never had the opportunity to check his original approximation. Now, a University of Missouri physicist has uncovered some clues about the basis of Einstein's theories and presented a more general approximation, which may better link quantum physics with classical physics.

New CO2-capturing molecule found

The accidental discovery of a bowl-shaped molecule that pulls carbon dioxide out of the air suggests exciting new possibilities for dealing with global warming, including genetically engineering microbes to manufacture those CO2 "catchers," a scientist from Maryland reports in an article of ACS' Inorganic Chemistry journal.

A stable home may boost brain activity in institutionalized children

Children raised in institutions are more likely to lag physically, socially, and cognitively, but little is known about what happens to children's brains when they live in institutions. Now a new study finds that placing institutionalized children in high-quality foster care may improve their brain activity.