Earth

New state of matter detected in a two-dimensional material

An international team of researchers have found evidence of a mysterious new state of matter, first predicted 40 years ago, in a real material. This state, known as a quantum spin liquid, causes electrons - thought to be indivisible building blocks of nature - to break into pieces.

Earth's internal heat drives rapid ice flow and subglacial melting in Greenland

04.04.2016: To understand Greenland's ice of today researchers have to go far back into Earth's history. The island's lithosphere has hot depths which originate in its distant geological past and cause Greenland's ice to rapidly flow and melt from below. An anomaly zone crosses Greenland from west to east where present-day flow of heat from the Earth's interior is elevated.

Unraveling truly one-dimensional carbon solids

Even in its elemental form, the high bond versatility of carbon allows for many different well-known materials, including diamond and graphite. A single layer of graphite, termed graphene, can then be rolled or folded into carbon nanotubes or fullerenes, respectively. To date, Nobel prizes have been awarded for both graphene (2010) and fullerenes (1996).

Nanoparticles can grow in cubic shape

The efficiency of many applications deriving from natural sciences depends dramatically on a finite-size property of nanoparticles, so-called surface-to-volume ratio. The larger the surface of nanoparticles for the same volume is achieved, the more efficiently nanoparticles can interact with the surrounding substance. However, thermodynamic equilibrium forces nanostructures to minimize open surface driven by energy minimization principle. This basic principle predicts that the only shape of nanoparticles can be spherical or close-to-spherical ones.

New insight into interaction of volcanic ash with jet engines

Scientists at the University of Liverpool and the Ludwig Maximilian University of Munich have developed a new method to assess the impact of volcanic ash on jet engines.

Little is known scientifically about the effects of volcanic ash on aircraft but the impact it can have on the aviation industry was evidenced when the Eyjafjalla volcano in Iceland erupted in 2010 resulting in prolonged disruption to air travel and significant economic losses exceeding £1 billion.

Seeing the light: Bristol chemists create mimic of key vision protein

An artificial mimic of a key light-sensitive molecule has been made by scientists at the University of Bristol. The work, published in Science, could lead to new ways of building light-sensitive artificial cells.

Professor Jonathan Clayden and colleagues in Bristol's School of Chemistry, along with collaborators at the Universities of Manchester and Hull, created an artificial mimic of rhodopsin, a protein that resides in cell membranes in the retina. The absorption of light by rhodopsin is the first step in the biochemistry of vision.

New insight into effects of volcanic ash on jet engines

Scientists at the University of Liverpool and the Ludwig Maximilian University of Munich have developed a new method to assess the impact of volcanic ash on jet engines.

Little is known scientifically about the effects of volcanic ash on aircraft but the impact it can have on the aviation industry was evidenced when the Eyjafjalla volcano in Iceland erupted in 2010 resulting in prolonged disruption to air travel and significant economic losses exceeding £1 billion.

Leading ocean scientists recommend action plan to combat changes to seawater chemistry

SACRAMENTO, Calif. - Global carbon dioxide emissions are triggering permanent and alarming changes to ocean chemistry along the North American West Coast that require immediate, decisive action to combat, including development of a coordinated regional management strategy, a panel of scientific experts has unanimously concluded.

Low-cost and lightweight

RICHLAND, Wash. - An improved titanium alloy -- stronger than any commercial titanium alloy currently on the market -- gets its strength from the novel way atoms are arranged to form a special nanostructure. For the first time, researchers have been able to see this alignment and then manipulate it to make the strongest titanium alloy ever developed, and with a lower cost process to boot.

Steroid medicine reduces function of calorie-burning brown fat

Boston, MA-- Steroid medications inhibit the activity of brown fat, which is the "good," calorie-burning fat humans and animals have, Australian researchers have discovered. They will present their study findings Saturday at the Endocrine Society's 98th annual meeting in Boston.

California drought patterns becoming more common

Atmospheric scientists have found that California's highest temperatures are almost always associated with blocking ridges, regions of high atmospheric pressure than can disrupt wind patterns - including one known as the Ridiculously Resilient Ridge. The Triple R, as it's called, is also linked with California's drought.

Rise of the ridiculously resilient ridge: California drought patterns becoming more common

Atmospheric patterns associated with droughts in California have occurred more frequently in recent decades, Stanford scientists say.

In new research published online this week in Science Advances, a team of researchers led by Stanford professor Noah Diffenbaugh analyzed the occurrence of large-scale atmospheric circulation patterns that have occurred during California's historical precipitation and temperature extremes.

Researchers use 3-D printing to create structure with active chemistry

Many materials - sugars, thermoplastics, glass, metals, ceramics and more -- are used to produce 3D-printed figures, typically with expensive or custom-built 3D printers.

New plasma source favorable for hydrogen negative ion beam is developed

Researchers at Tohoku University have discovered a new plasma wave phenomenon, leading to the development of a negative ion source for fusion plasma heating.

Led by Associate Prof K. Takahashi and Prof A. Ando, the team demonstrated adjoining generations of high and low electron temperature plasmas, based on the presently discovered plasma wave physics.

Dancing on ice

While drinking your favourite cold drink, you probably do not imagine what is going on inside each ice cube. At the Okinawa Institute of Science and Technology Graduate University (OIST), the Theory of Quantum Matter Unit, led by Professor Nic Shannon has explained in detail the theory behind two experiments that show how protons inside ice behave. Their findings have been published in Physical Review B.