A new study on the frequency of past giant earthquakes in the Indian Ocean region shows that Sri Lanka, and much of the Indian Ocean, is affected by large tsunamis at highly variable intervals, from a few hundred to more than one thousand years.
The findings suggest that the accumulation of stress in the region could generate as large, or even larger tsunamis than the one that resulted from the 2004 magnitude-9.2 Sumatra earthquake.
Racetrack Playa is home to an enduring Death Valley mystery. Littered across the surface of this dry lake, also called a "playa," are hundreds of rocks – some weighing as much as 320 kilograms (700 pounds) – that seem to have been dragged across the ground, leaving synchronized trails that can stretch for hundreds of meters.
What powerful force could be moving them? Researchers have investigated this question since the 1940s, but no one has seen the process in action – until now.
Sharks in no-fishing zones in the Great Barrier Reef (GBR) Marine Park are more abundant when the coral is healthy, according to a study published September 10, 2014 in the open-access journal PLOS ONE by Mario Espinoza from James Cook University, Australia and colleagues.
When a segment of a major fault line goes quiet, it can mean one of two things: The "seismic gap" may simply be inactive — the result of two tectonic plates placidly gliding past each other — or the segment may be a source of potential earthquakes, quietly building tension over decades until an inevitable seismic release.
RICHLAND, Wash. -- Researchers have been trying to increase the efficiency of solid oxide fuel cells by lowering the temperatures at which they run. More efficient fuel cells might gain wider use in vehicles or as quiet, pollution-free, neighborhood electricity generating stations. A serendipitous finding has resulted in a semiconducting material that could enable fuel cells to operate at temperatures two-thirds lower than current technology, scientists reported August 18 in Nature Communications.
PHILADELPHIA, PA, September 10, 2014 – Smartphones have seen wide adoption among Americans in recent years because of their ease of use and adaptability. With that in mind, researchers from Arizona State University examined how smartphone use affected weight loss goals and determined that smartphones may offer users an advantage over traditional methods when tracking diet data.
A team of European researchers has become one of the first groups to successfully synthesize the 2D material germanene.
Dubbed a 'cousin of graphene', the material, which is made up of just a single layer of germanium atoms, is expected to exhibit impressive electrical and optical properties and could be widely integrated across the electronics industry in the future.
The material has been presented today, 10 September, in the Institute of Physics and German Physical Society's New Journal of Physics.
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A prospective "green revolution" in Africa could boost land use and carbon emissions globally, according to a study co-authored by a University of British Columbia researcher.
The term "green revolution" typically describes the use of agricultural innovations – such as the development of new seeds – to increase yields, particularly in developing countries.
RENO – Despite new technologies, satellite imagery and modern research methods the work of collecting routine, fundamental data about the Earth's oceans' physical, biological and chemical characteristics remains an unforgiving and impossible task that has challenged scientists for centuries.
Researchers at Princeton University have begun crystallizing light as part of an effort to answer fundamental questions about the physics of matter.
The researchers are not shining light through crystal – they are transforming light into crystal. As part of an effort to develop exotic materials such as room-temperature superconductors, the researchers have locked together photons, the basic element of light, so that they become fixed in place.
WASHINGTON D.C., September 9, 2014 – In our vain human struggle to kill flies, our hands and swatters often come up lacking. This is due to no fault of our own, but rather to flies' compound eyes. Arranged in a hexagonal, convex pattern, compound eyes consist of hundreds of optical units called ommatidia, which together bestow upon flies a nearly 360-degree field of vision. With this capability in mind, a team of researchers at Pennsylvania State University is drawing on this structure to create miniature light-emitting devices and optical sensors.
It could be difficult for the NSA to hack encrypted messages in the future – at least if a technology being investigated by scientists at the Max Planck Institute for the Science of Light in Erlangen and the University Erlangen-Nürnberg will be successful: quantum cryptography. The physicists are now laying the foundation to make this technique, which can already be used for the generation of secret keys, available for a wider range of applications.
Carbon dioxide released into the atmosphere is absorbed into ocean waters, where it dissolves and lowers the pH of the water. Acidic waters affect fish behavior by disrupting a specific receptor in the nervous system, called GABAA, which is present in most marine organisms with a nervous system. When GABAA stops working, neurons stop firing properly.