Science

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 2018-01-24 00:00 

Phys.org

Insects took off when they evolved wings...

The evolution of wings not only allowed ancient insects to become the first creatures on Earth to take to the skies, but also propelled their rise to become one of nature's great success stories, according to a new study....

 2018-01-24 00:00 

Phys.org

Rare 450-million-year-old 'cone-shaped' fossil discovery...

Researchers from the University of Leicester, working with an international team of geologists, have discovered an enigmatic fossil of a 450 million year-old creature resembling a tiny ice-cream cone....

 2018-01-24 00:00 

Phys.org

Modern math sheds new light on long-standing debate about Viking-age Ireland conflict...

Modern mathematical techniques - similar to those used to analyse social-networking websites - have allowed academics to shed new light on a centuries old debate surrounding the Viking age in Ireland and the famous battle of Clontarf in 1014....

 2018-01-24 00:00 

Phys.org

Human skin pigmentation recreated—with a 3-D bioprinter...

A new method for controlling pigmentation in fabricated human skin has been developed by researchers from A*STAR's Singapore Institute of Manufacturing Technology (SIMTech) and the Singapore Centre for 3D Printing (SC3DP) at Nanyang Technological Univ...

 2018-01-24 00:00 

Phys.org

Frozen in time: Glacial archaeology on the roof of Norway...

Climate change is one of the most important issues facing people today and year on year the melting of glacial ice patches in Scandinavia, the Alps and North America reveals and then destroys vital archaeological records of past human activity....

 2018-01-24 00:00 

Phys.org

Gut instinct makes animals appear clever...

Animals, including humans, can make surprisingly good decisions just based on the food in their stomach, new research suggests....

 2018-01-23 22:09 

Phys.org

Scientists developing new, low-cost tool for detecting bacteria in food and water...

Food scientist Lili He and colleagues at the University of Massachusetts Amherst report that they have developed a new, rapid and low-cost method for detecting bacteria in water or a food sample. Once commercially available, it should be useful to cooks u...

 2018-01-23 22:08 

Phys.org

All the buzz—bigger honeybee colonies have quieter combs...

When honeybee colonies get larger, common sense suggests it would be noisier with more bees buzzing around....

 2018-01-23 20:51 

Phys.org

TRAPPIST-1 system planets potentially habitable...

Two exoplanets in the TRAPPIST-1 system have been identified as most likely to be habitable, a paper by PSI Senior Scientist Amy Barr says....

 2018-01-23 20:40 

Phys.org

AI can read! Tech firms race to smarten up thinking machines...

Seven years ago, a computer beat two human quizmasters on a "Jeopardy" challenge. Ever since, the tech industry has been training its machines to make them even better at amassing knowledge and answering questions....

 2018-01-23 20:32 

Phys.org

Scientists find oxidized iron deep within the Earth's interior...

Scientists digging deep into the Earth's mantle recently made an unexpected discovery....

 2018-01-23 20:30 

Phys.org

Engineer says new study forces researchers to rethink how elderly break their bones...

To better understand why many elderly people are prone to break a bone in a fall (known as bone fragility fractures), perhaps doctors and researchers should look at the human skeleton in much the same way civil engineers analyze buildings and bridges, acc...

 2018-01-23 20:28 

Phys.org

Research determines integration of plug-in electric vehicles should play a big role in future electric system planning...

An influx of plug-in electric vehicles (PEVs) charging without coordination could prove challenging to the nation's electric grid, according to research conducted by the U.S. Department of Energy's National Renewable Energy Laboratory (NREL)....

 2018-01-23 18:38 

Phys.org

Apple says delayed HomePod speaker ready to go...

Apple said Tuesday its HomePod speaker, the digital assistant device challenging rivals from Amazon and Google, was now ready after a delay of several months....

 2018-01-23 18:33 

Phys.org

Viral probe gives ringside view of cell-to-cell combat...

A fascinating blow-by-blow account of the arms struggle between plants and viral pathogens, is revealed in new research....

 2018-01-23 18:32 

Phys.org

Root microbiome valuable key to plants surviving drought...

Just as the microorganisms in our gut are increasingly recognized as important players in human health and behavior, new research from the University of Toronto Mississauga demonstrates that microorganisms are equally critical to the growth and health of ...

 2018-01-23 18:31 

Phys.org

First quantifiable observation of cloud seeding...

A University of Wyoming researcher contributed to a paper that demonstrated, for the first time, direct observation of cloud seeding—from the growth of the ice crystals through the processes that occur in the clouds to the eventual fallout of the ic...

 2018-01-23 18:25 

Phys.org

So much depends on a tree guard...

In a big city, trees, like people, like their space. In a new study, researchers at Columbia University found that street trees protected by guards that stopped passersby from trampling the surrounding soil absorbed runoff water more quickly than trees in...

 2018-01-23 18:16 

Phys.org

New filters could enable manufacturers to perform highly-selective chemical separation, cutting costs and emissions...

A team of chemical and biological engineers has developed highly selective membrane filters that could enable manufacturers to separate and purify chemicals in ways that are currently impossible, allowing them to potentially use less energy and cut carbon...

 2018-01-23 14:14 

Phys.org

Drones learn to navigate autonomously by imitating cars and bicycles...

All today's commercial drones use GPS, which works fine above building roofs and in high altitudes. But what, when the drones have to navigate autonomously at low altitude among tall buildings or in the dense, unstructured city streets with cars, cycl...

 2018-01-23 14:10 

Phys.org

Three 'super-Earths' orbiting a cool dwarf star discovered...

Using NASA's prolonged Kepler mission, known as K2, astronomers have found three new "super-Earth"; exoplanets. The newly detected alien worlds orbit the cool dwarf star designated LP415-17. The finding is reported January 18 in a paper publish...

 2018-01-23 14:04 

Phys.org

Genetic study of plains zebra finds that six subspecies made by appearance-only do not match genetic evidence...

A team of researchers with members from Denmark, the U.S., Portugal and France has found that the six subspecies classifications currently used to categorize plains zebras living in Africa do not match with genetic evidence. In their paper published in th...

 2018-01-23 13:48 

Phys.org

Toxin in centipede venom identified...

A team of researchers from several institutions in China has identified the toxin in golden head centipede venom. In their paper published in Proceedings of the National Academy of Sciences, the group describes how they found the toxin that makes the veno...

 2018-01-23 13:40 

Phys.org

Harmful algal blooms can become airborne...

Waves lapping against the shoreline is always a pretty scene, but it may also be a way for toxins from harmful algal blooms to become airborne....

 2018-01-23 13:36 

Phys.org

Survival mode in a tiny worm's brain...

Caenorhabditis elegans, or C. elegans, are tiny worms with tiny brains—their whole bodies are the width of a pencil tip and contain only 302 neurons. These nematodes live out their two-week-long lifespans in rotting vegetation, eating bacteria, and ...

 2018-01-23 13:33 

Phys.org

Unique injector creates bunches of electrons to stimulate million-per-second X-ray pulses...

Every powerful X-ray pulse produced for experiments at a next-generation laser project, now under construction, will start with a "spark" a burst of electrons emitted when a pulse of ultraviolet light strikes a 1-millimeter-wide spot on a speciall...

 2018-01-23 13:30 

Phys.org

Brain chemical differences suggest possible reason for humans having social edge over other primates...

A team of researchers affiliated with several institutions in the U.S. has found some key differences in brain chemicals between humans and other primates. In their paper published in Proceedings of the National Academy of Sciences, the group suggests the...

 2018-01-23 13:21 

Phys.org

Dust storms linked to gas escape from Martian atmosphere...

Some Mars experts are eager and optimistic for a dust storm this year to grow so grand it darkens skies around the entire Red Planet. This type of phenomenon in the environment of modern Mars could be examined as never before possible, using the combinati...

 2018-01-23 13:00 

Phys.org

Interacting Antarctic glaciers may cause faster melt and sea level contributions...

A new study shows that a large and potentially unstable Antarctic glacier may be melting farther inland than previously thought and that this melting could affect the stability of another large glacier nearby an important finding for understanding and pro...

 2018-01-23 11:51 

Phys.org

Stable, self-disrupting microbubbles as intravenous oxygen carriers...

Severe oxygen deficiency eventually leads to cardiac arrest. If the blood's oxygen content cannot be rapidly re-established, the patient may die within minutes. In the journal Angewandte Chemie, American scientists have introduced air-filled microbubb...

 2018-01-23 11:50 

Phys.org

Mystery solved for mega-avalanches in Tibet...

An international scientific effort determined the cause of a highly unusual and deadly glacier avalanche in Tibet in 2016, a new Nature Geoscience paper says....

 2018-01-23 11:49 

Phys.org

Scientist proposes new definition of a planet...

Pluto hogs the spotlight in the continuing scientific debate over what is and what is not a planet, but a less conspicuous argument rages on about the planetary status of massive objects outside our solar system. The dispute is not just about semantics, a...

 2018-01-23 11:03 

Phys.org

Optical nanoscope images quantum dots...

Physicists have developed a technique based on optical microscopy that can be used to create images of atoms on the nanoscale. In particular, the new method allows the imaging of quantum dots in a semiconductor chip. Together with colleagues from the Univ...

 2018-01-23 10:00 

Phys.org

The seemingly unremarkable crystals that could help predict volcanic eruptions...

They may look inconspicuous and unremarkable, and most people wouldn't notice them, but small crystals in volcanic rocks, such as lava, may hold the key to better understanding advance warnings of volcanic eruptions....

 2018-01-23 07:24 

Phys.org

Intel halts chip flaw fix due to problem with patches...

Intel on Monday called for a halt in deployment of patches for a troubling vulnerability in its computer chips because they could cause "unpredictable" problems in affected devices....

 2018-01-23 07:11 

Phys.org

New Eocene fossil data suggest climate models may underestimate future polar warming...

A new international analysis of marine fossils shows that warming of the polar oceans during the Eocene, a greenhouse period that provides a glimpse of Earth's potential future climate, was greater than previously thought....

 2018-01-22 20:54 

Phys.org

Inverse-design approach leads to metadevices...

Imagine wafer-thin eyeglasses or a smartphone camera so small it is invisible to the naked eye....

 2018-01-22 20:53 

Phys.org

3-D printing improves cell adhesion and strength of PDMS polymer...

Combining two different polymer forms can switch manufacturing of silicone parts from molding, casting and spin coating of simple forms to 3-D printing of complex geometries with better mechanical characteristics and better biological adhesion, according ...

 2018-01-22 20:52 

Phys.org

Big energy savings: Researchers build the world's smallest electro-optic modulator...

Researchers at Oregon State University have designed and fabricated the world's smallest electro-optic modulator, which could mean major reductions in energy used by data centers and supercomputers....

 2018-01-22 20:45 

Phys.org

Small hydroelectric dams increase globally with little research, regulations...

Hydropower dams may conjure images of the massive Grand Coulee Dam in Washington state or the Three Gorges Dam in Hubei, China—the world's largest electricity-generating facility....

 2018-01-22 20:00 

Phys.org

New research holds promise of predicting snowpack even before the snow falls...

As farmers in the American West decide what, when and where to plant, and urban water managers plan for water needs in the next year, they want to know how much water their community will get from melting snow in the mountains....

 2018-01-22 20:00 

Phys.org

A better HIV test...

Public health officials have a tough choice to make when it comes to screening people for HIV: administer a reliable blood test that can detect infections early on, but that few people will volunteer for, or give people a convenient test using saliva that...

 2018-01-22 20:00 

Phys.org

'Legos of life': Deep dive into the 3-D structures of proteins reveals key building blocks...

Rutgers scientists have found the "Legos of life" - four core chemical structures that can be stacked together to build the myriad proteins inside every organism - after smashing and dissecting nearly 10,000 proteins to understand their component ...

 2018-01-22 20:00 

Phys.org

Climate change and snowmelt—turn up the heat, but what about humidity?...

It's said on sticky summer days: "It's not the heat, it's the humidity." That holds true in the winter too, and could hold the key to the future of snowpack and water resources in the American West....

 2018-01-22 20:00 

Phys.org

Discrepancies between satellite and global model estimates of land water storage...

Research led by The University of Texas at Austin has found that calculations of water storage in many river basins from commonly used global computer models differ markedly from independent storage estimates from GRACE satellites....

 2018-01-22 20:00 

Phys.org

New study: Industry conservation ethic proves critical to Gulf of Maine lobster fishery...

A new study, led by scientists at the Gulf of Maine Research Institute and colleagues at the University of Maine and NOAA, demonstrates how conservation practices championed by Maine lobstermen help make the lobster fishery resilient to climate change....

 2018-01-22 18:01 

Phys.org

Marine vegetation can mitigate ocean acidification, study finds...

Marine plants and seaweeds in shallow coastal ecosystems can play a key role in alleviating the effects of ocean acidification, and their robust population in shoreline environments could help preserve declining shellfish life, according to a study by Uni...

 2018-01-22 17:24 

Phys.org

Researchers reveal how microbes cope in phosphorus-deficient tropical soil...

A team led by the Department of Energy's Oak Ridge National Laboratory has uncovered how certain soil microbes cope in a phosphorus-poor environment to survive in a tropical ecosystem. Their novel approach could be applied in other ecosystems to study...

 2018-01-22 17:22 

Phys.org

Wild Sri Lankan elephants retreat from the sound of disturbed Asian honey bees...

For the first time, researchers have shown that Asian elephants in Sri Lanka are scared of honey bees, much like their African counterparts....

 2018-01-22 17:05 

Phys.org

How climate change weakens coral 'immune systems'...

If this winter finds you stressed out and fighting a sinus infection, then you know something of what coral will endure in the face of climate change....

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