Earth

With magnetic nanoparticles, scientists remotely control neurons and animal behavior

BUFFALO, N.Y. -- Clusters of heated, magnetic nanoparticles targeted to cell membranes can remotely control ion channels, neurons and even animal behavior, according to a paper published by University at Buffalo physicists in Nature Nanotechnology.

The research could have broad application, potentially resulting in innovative cancer treatments that remotely manipulate selected proteins or cells in specific tissues, or improved diabetes therapies that remotely stimulate pancreatic cells to release insulin.

Shocking results from diamond anvil cell experiments

IVERMORE, Calif. - At first, nanoshocks may seem like something to describe the millions of aftershocks of a large earthquake.

Study shows cleaner water mitigates climate change effects on Florida Keys coral reefs

MELBOURNE, FLA.—Improving the quality of local water increases the resistance of coral reefs to global climate change, according to a study published in June in Marine Ecology Progress Series. Florida Institute of Technology coral reef ecologist Robert van Woesik and his student Dan Wagner led the study, which provides concrete evidence for a link between environmental health and the prospects for reefs in a rapidly changing world.

The long-term fate of the oil spill in the Atlantic

The long-term fate of the oil spill in the Atlantic

Honolulu, HI – The possible spread of the oil spill from the Deepwater Horizon rig over the course of one year was studied in a series of computer simulations by a team of researchers from the School of Ocean and Earth Science and Technology (SOEST) at the University of Hawaii at Manoa.

Research helps predict future impact of climate change

A new study, involving academics at the University of Sheffield, has accurately measured for the first time the current carbon cycles in the world. The research will enable scientists to make more accurate predictions concerning the impact of climate change in the future.

Breath of the Earth: Cycling carbon through terrestrial ecosystems

Two recent international studies are poised to change the way scientists view the crucial relationship between Earth's climate and the carbon cycle. These reports explore the global photosynthesis and respiration rates—the planet's deep "breaths" of carbon dioxide, in and out—and researchers say that the new findings will be used to update and improve upon traditional models that couple together climate and carbon.

Not science fiction - the search for the bridge to the quantum world

Science fiction has nothing over quantum physics when it comes to presenting us with a labyrinthine world that can twist your mind into knots when you try to make sense of it.

A team of Arizona State University researchers, however, believe they've opened a door to a clearer view of how the common, everyday world we experience through our senses emerges from the ethereal quantum world.

Study explains science of soccer

College Park, MD (July 1, 2010) -- With the attention of sports fans worldwide focused on South Africa and the 2010 FIFA World Cup, U.S. scientist John Eric Goff has made the aerodynamics of the soccer ball a focus of his research.

In an article appearing in the magazine Physics Today this month, Goff examines the science of soccer and explains how the world's greatest players are able to make a soccer ball do things that would seem to defy the forces of nature.

Scrubbing CO2 from atmosphere could be a long-term commitment

Palo Alto, CA— With carbon dioxide in the atmosphere approaching alarming levels, even halting emissions altogether may not be enough to avert catastrophic climate change. Could scrubbing carbon dioxide from the air be a viable solution? A new study by scientists at the Carnegie Institution suggests that while removing excess carbon dioxide would cool the planet, complexities of the carbon cycle would limit the effectiveness of a one-time effort. To keep carbon dioxide at low levels would require a long-term commitment spanning decades or even centuries.

Man-made global warming has been around as long as man has

WASHINGTON— Even before the dawn of agriculture, people may have caused the planet to warm up, a new study suggests.

Mammoths used to roam modern-day Russia and North America, but are now extinct, and there's evidence that around 15,000 years ago, early hunters had a hand in wiping them out. A new study, accepted for publication in Geophysical Research Letters, argues that this die-off had the side effect of heating up the planet.

Dartmouth researchers contribute to solving a quantum puzzle

Dartmouth researchers contribute to solving a quantum puzzle

HANOVER, NH – Dartmouth researchers have discovered a potentially important piece of the quantum/classical puzzle – learning how the rules of physics in the quantum world (think smaller than microscopic) change when applied to the classical world (think every day items, like cars and trees).

Unpeeling atoms and molecules from the inside out

Unpeeling atoms and molecules from the inside out

Menlo Park, Calif.--The first published scientific results from the world's most powerful hard X-ray laser, located at the Department of Energy's SLAC National Accelerator Laboratory, show its unique ability to control the behaviors of individual electrons within simple atoms and molecules by stripping them away, one by one—in some cases creating hollow atoms.

Electrons are late starters

Electrons are late starters

Switching off lights has bigger CO2 impact than you think

Switching off lights, turning the television off at the mains and using cooler washing cycles could have a much bigger impact on reducing carbon dioxide emissions from power stations than previously thought, according to a new study published this month in the journal Energy Policy. The study shows that the figure used by government advisors to estimate the amount of carbon dioxide saved by reducing people's electricity consumption is up to 60 percent too low.

Diamonds and the holy grail of quantum computing

College Park, MD (June 29, 2010) -- Since Richard Feynman's first envisioned the quantum computer in 1982, there have been many studies of potential candidates -- computers that use quantum bits, or qubits, capable of holding an more than one value at a time and computing at speeds far beyond existing silicon-based machines for certain problems. Most of these candidate systems, such as atoms and semiconducting quantum dots, work for quantum computing, but only at very low temperatures.