A group of University of Oklahoma researchers led by Dr. James P. Shaffer, Homer L. Dodge Department of Physics and Astronomy, have discovered giant Rydberg molecules with a bond as large as a red blood cell. Determining how Rydberg molecules interact is important because Rydberg atoms are a key ingredient in atom based quantum computation schemes.
Earth
Beware rushed solutions to problems exaggerated in the media. Hydrofluorocarbons (HFCs) were once touted as the solution for ozone-depleting hydrochlorofluorocarbons (HCFCs) since they don't have the impact on the ozone layer that HCFCs do, even though they allowed for the phaseout of chlorofluorocarbons(CFCs) which replaced ammonia in refrigeration and spray cans.
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Archaeologists have used stone tools to answer many questions about human ancestors in both the distant and near past and now they are analyzing the origin of obsidian flakes to better understand how people settled and interacted in the inhospitable Kuril Islands.
An artificial underground cave, the largest in Israel, has been exposed in the Jordan Valley in the course of a survey carried out by the University of Haifa's Department of Archaeology. Prof. Adam Zertal, who headed the excavating team, reckons that this cave was originally a large quarry during the Roman and Byzantine era and was one of its kind. Various engravings were uncovered in the cave, including cross markings, and it is assumed that this could have been an early monastery. "It is probably the site of "Galgala" from the historical Madaba Map," Prof. Zertal says.
In a paper in Nature Geoscience, a team from the National Oceanography Centre, Southampton (NOCS), along with colleagues from Tübingen (Germany) and Bristol presents a novel continuous reconstruction of sea level fluctuations over the last 520 thousand years.
Palo Alto, CA—A tiny plant with a long name (Arabidopsis thaliana) helps researchers from over 120 countries learn how to design new crops to help meet increasing demands for food, biofuels, industrial materials, and new medicines. The genes, proteins, and other traits of this fast-growing, tiny mustard plant reside in a vast database dubbed the Arabidopsis Information Resource (TAIR), which has over 1.6 million page hits each month. The TAIR group, headed by Dr.
PASADENA, Calif.—At the quantum level, the atoms that make up matter and the photons that make up light behave in a number of seemingly bizarre ways. Particles can exist in "superposition," in more than one state at the same time (as long as we don't look), a situation that permitted Schrödinger's famed cat to be simultaneously alive and dead; matter can be "entangled"—Albert Einstein called it "spooky action at a distance"—such that one thing influences another thing, regardless of how far apart the two are.
The largest animals ever to have walked the face of the earth may not have been as big as previously thought, reveals a paper published today in the Zoological Society of London's Journal of Zoology.
Scientists have discovered that the original statistical model used to calculate dinosaur mass is flawed, suggesting dinosaurs have been oversized.
Widely cited estimates for the mass of Apatosaurus louisae, one of the largest of the dinosaurs, may be double that of its actual mass (38 tonnes vs. 18 tonnes).
BUFFALO, N.Y. -- Modern glaciers, such as those making up the Greenland and Antarctic ice sheets, are capable of undergoing periods of rapid shrinkage or retreat, according to new findings by paleoclimatologists at the University at Buffalo.
The paper, published on June 21 in Nature Geoscience, describes fieldwork demonstrating that a prehistoric glacier in the Canadian Arctic rapidly retreated in just a few hundred years.
The proof of such rapid retreat of ice sheets provides one of the few explicit confirmations that this phenomenon occurs.
TALLAHASSEE, Fla. -- Reductions in the flow of the Apalachicola River have far-reaching effects that could prove detrimental to grouper and other reef fish populations in the northeastern Gulf of Mexico, according to a new Florida State University study that may provide new ammunition for states engaged in a nearly two-decade water war.
Immobilized microbes can break down potentially harmful phthalates, according to researchers in China, writing in the International Journal of Environment and Pollution. The microbes might be used to treat industrial waste water and so prevent these materials from entering the environment.
Phthalic Acid Esters (PAEs), commonly known as phthalates, are widely used as additives in polymer manufacture as plasticizers. They do not readily degrade in the environment and so have become widely distributed in natural water, wastewater, soils, and sediment.
A team of NOAA-supported scientists from the Louisiana Universities Marine Consortium, Louisiana State University, and the University of Michigan is forecasting that the "dead zone" off the coast of Louisiana and Texas in the Gulf of Mexico this summer could be one of the largest on record. The dead zone is an area in the Gulf of Mexico where seasonal oxygen levels drop too low to support most life in bottom and near-bottom waters.
A new NOAA report on the health of Cordell Bank National Marine Sanctuary indicates that the overall condition of the sanctuary's marine life and habitats is fair to good, but identifies several emerging threats to sanctuary resources.
ARGONNE, Ill. (June 18, 2009) — Scientists at the U.S. Department of Energy's Argonne National Laboratory and the University of Chicago have reached a milestone in the study of emergent magnetism.
For the first time scientists have discovered the presence of a natural deep earth pump that is a crucial element in the formation of ore deposits and earthquakes.
The process, called creep cavitation, involves fluid being pumped through pores in deformed rock in mid-crustal sheer zones, which are approximately 15 km below the Earth's surface.
The fluid transfer through the middle crust also plays a key role in tectonic plate movement and mantle degassing.