|Top Technology News -- ScienceDaily
Wed, 18 Jul 2018 10:13:01 EDT
Despite digital revolution, distance still matters
Wed, 18 Jul 2018 09:24:54 EDT
Even when people have well-connected social networks beyond their home cities and across state lines, they are still most frequently interacting with people who are geographically nearby. That is one of the major outcomes of an expansive, 16-month study of more than 51 million geo-tagged tweets generated by more than 1.7 million Twitter users across the United States.
Supersharp images from new VLT adaptive optics
Wed, 18 Jul 2018 08:22:20 EDT
ESO's Very Large Telescope (VLT) has achieved first light with a new adaptive optics mode called laser tomography -- and has captured remarkably sharp test images of the planet Neptune and other objects. The MUSE instrument working with the GALACSI adaptive optics module, can now use this new technique to correct for turbulence at different altitudes in the atmosphere. It is now possible to capture images from the ground at visible wavelengths that are sharper than those from the NASA/ESA Hubble Space Telescope.
AI technology could help protect water supplies
Wed, 18 Jul 2018 08:21:13 EDT
Progress on new artificial intelligence (AI) technology could make monitoring at water treatment plants cheaper and easier and help safeguard public health.
Materials processing tricks enable engineers to create new laser material
Wed, 18 Jul 2018 08:21:11 EDT
By doping alumina crystals with neodymium ions, engineers have developed a new laser material that is capable of emitting ultra-short, high-power pulses -- a combination that could potentially yield smaller, more powerful lasers with superior thermal shock resistance, broad tunability and high-duty cycles.
No more zigzags: Scientists uncover mechanism that stabilizes fusion plasmas
Tue, 17 Jul 2018 18:23:14 EDT
Article describes simulation of mechanism that eliminates sawtooth instabilities in fusion plasmas.
The rise of secondary imaging interpretations
Tue, 17 Jul 2018 14:25:29 EDT
Among Medicare beneficiaries, the frequency of billed secondary interpretation services for diagnostic imaging services increased from 2003 to 2016 across a broad range of modalities and body regions, often dramatically.
The scent of coffee appears to boost performance in math
Tue, 17 Jul 2018 12:58:36 EDT
Research reveals that the scent of coffee alone may help people perform better on the analytical portion of the Graduate Management Aptitude Test, or GMAT, a computer adaptive test required by many business schools.
Solutions to water challenges reside at the interface
Tue, 17 Jul 2018 12:58:32 EDT
Researchers describe the most advanced research innovations that could address global clean water accessibility. A new comprehensive article focuses on understanding and controlling the interfaces between materials and water.
Close-ups of grain boundaries reveal how sulfur impurities make nickel brittle
Tue, 17 Jul 2018 12:56:53 EDT
Engineers have shed new light on a scientific mystery regarding the atomic-level mechanism of the sulfur embrittlement of nickel, a classic problem that has puzzled the scientific community for nearly a century. The discovery also enriches fundamental understanding of general grain boundaries that often control the mechanical and physical properties of polycrystalline materials.
Exploding waves from colliding dissipative pulses
Tue, 17 Jul 2018 11:25:13 EDT
The interaction of traveling waves in dissipative systems, physical systems driven by energy dissipation, can yield unexpected and sometimes chaotic results. These waves, known as dissipative pulses are driving experimental studies in a variety of areas that involve matter and energy flows.
New cost-effective instrument measures molecular dynamics on a picosecond timescale
Tue, 17 Jul 2018 11:25:10 EDT
Studying the photochemistry has shown that ultraviolet radiation can set off harmful chemical reactions in the human body and, alternatively, can provide 'photo-protection' by dispersing extra energy. To better understand the dynamics of these photochemical processes, a group of scientists irradiated the RNA base uracil with ultraviolet light and documented its behavior on a picosecond timescale.
High vinculin levels help keep aging fruit fly hearts young
Tue, 17 Jul 2018 11:25:05 EDT
A new discovery in how heart muscles maintain their shape in fruit flies sheds light on the crucial relationship between cardiac function, metabolism, and longevity. Researchers have discovered that maintaining high levels of the protein vinculin confers health benefits to fruit flies. Their work shows that fruit flies bred to produce 50 percent more vinculin enjoyed better cardiovascular health and lived a third of their average life span longer.
Transmission of specific colors of light over long distances
Tue, 17 Jul 2018 11:24:59 EDT
Researchers have reached a new milestone on the way to optical computing, or the use of light instead of electricity for computing. They explored a new way to select and send light of a specific color using long silicon wires that are several hundred nanometers in diameter and their work enabled a new type of nanoscale ''light switch'' that can turn on and off the transmission of one color of light over very long distances.
A dozen new moons of Jupiter discovered, including one 'oddball'
Tue, 17 Jul 2018 10:12:56 EDT
Twelve new moons orbiting Jupiter have been found -- 11 'normal' outer moons, and one that they're calling an 'oddball.' Astronomers first spotted the moons in the spring of 2017 while they were looking for very distant solar system objects as part of the hunt for a possible massive planet far beyond Pluto.
Astronomers find a famous exoplanet's doppelganger
Tue, 17 Jul 2018 09:48:07 EDT
A new planet has been imaged, and it appears nearly identical to one of the best studied gas-giant planets. But this doppelganger differs in one very important way: Its origin. One object has long been known: the 13-Jupiter-mass planet beta Pictoris b, one of the first planets discovered by direct imaging, back in 2009. The new object, dubbed 2MASS 0249 c, has the same mass, brightness, and spectrum as beta Pictoris b.
Homogeneous BTK occupancy assay
Tue, 17 Jul 2018 09:47:58 EDT
A time-resolved fluorescence resonance energy transfer-based BTK occupancy assay measures target engagement in peripheral blood mononuclear cells (PBMCs) and in lymph-node and bone-marrow samples.
Decade of research shows little improvement in websites' password guidance
Tue, 17 Jul 2018 09:47:52 EDT
Leading brands including Amazon and Wikipedia are failing to support users with advice on how to securely protect their data, a study shows.
How does the sun's rotational cycle influence lightning activity on earth?
Tue, 17 Jul 2018 09:47:05 EDT
A collaborative research team has taken the first steps to understanding how the sun's rotational cycle influences lightning activity. They found answers in an unusual source -- diaries dating back to the 1700s.
Researchers make and test atom-thick boron's unique domains
Mon, 16 Jul 2018 16:45:15 EDT
Defects are often observed when making borophene, the single-atom form of boron, but unlike in other two-dimensional materials, these mismatched lattices can assemble into ordered structures that preserve the material's metallic nature and electronic properties.
Why pulsed sparks make for better ignition
Mon, 16 Jul 2018 16:45:13 EDT
Researchers have learned the mechanisms behind a means of improved ignition, helping to open the door to better performance in all types of combustion systems.
Electronic stickers to streamline large-scale 'Internet of things'
Mon, 16 Jul 2018 16:45:08 EDT
Researchers have developed a new fabrication method that makes tiny, thin-film electronic circuits peelable from a surface. The technique not only eliminates several manufacturing steps and the associated costs, but also allows any object to sense its environment or be controlled through the application of a high-tech sticker.
Single-celled architects inspire new nanotechnology
Mon, 16 Jul 2018 15:16:26 EDT
Scientists have designed a range of nanostructures resembling marine diatoms -- tiny unicellular creatures. To achieve this, they borrow techniques used by naturally-occurring diatoms to deposit layers of silica -- the primary constituent in glass -- in order to grow their intricate shells. Using a technique known as DNA origami, the group designed nanoscale platforms of various shapes to which particles of silica, drawn by electrical charge, could stick.
Magnetized wire could be used to detect cancer in people
Mon, 16 Jul 2018 15:16:23 EDT
A magnetic wire used to snag scarce and hard-to-capture tumor cells could prove to be a swift and effective tactic for early cancer detection, according to a new study.
Study of high-energy neutrinos again proves Einstein right
Mon, 16 Jul 2018 15:16:07 EDT
A new study demonstrates that Einstein is right again. The most thorough test yet finds no Lorentz violation in high-energy neutrinos.
What's causing the voltage fade in Lithium-rich NMC cathode materials?
Mon, 16 Jul 2018 15:15:31 EDT
Researchers explain what's causing the performance-reducing 'voltage fade' that currently plagues a promising class of cathode materials called Lithium-rich NMC (nickel magnesium cobalt) layered oxides.
Forget joysticks, use your torso to pilot drones
Mon, 16 Jul 2018 15:15:21 EDT
Your torso is more intuitive -- and more precise -- than joysticks for piloting drones, both simulated and real, according to a recent study. Work is already underway to implement this new body-machine-interface technology for search and rescue with drones.
Buried Internet infrastructure at risk as sea levels rise
Mon, 16 Jul 2018 14:16:27 EDT
Thousands of miles of buried fiber optic cable in densely populated coastal regions of the United States may soon be inundated by rising seas, according to a new study.
Electric car batteries souped-up with fluorinated electrolytes for longer-range driving
Mon, 16 Jul 2018 14:16:13 EDT
Researchers have figured out how to increase a rechargeable battery's capacity by using aggressive electrodes and then stabilizing these potentially dangerous electrode materials with a highly-fluorinated electrolyte.
Microscopic trampoline may help create networks of quantum computers
Mon, 16 Jul 2018 14:16:10 EDT
Researchers have developed a microscopic ''trampoline'' that can absorb microwave energy and bounce it into laser light -- a crucial step for sending quantum signals over long distances.
Faster photons could enable total data security
Mon, 16 Jul 2018 11:46:02 EDT
Researchers have solved a key puzzle in quantum physics that could help to make data transfer totally secure.
AI-based framework creates realistic textures in the virtual world
Mon, 16 Jul 2018 11:45:57 EDT
Many designers for the virtual world find it challenging to design efficiently believable complex textures or patterns on a large scale. Indeed, so-called 'texture synthesis,' the design of accurate textures such as water ripples in a river, concrete walls, or patterns of leaves, remains a difficult task for artists. A plethora of non-stationary textures in the 'real world' could be re-created in gaming or virtual worlds, but the existing techniques are tedious and time-consuming.
What happens when we heat the atomic lattice of a magnet all of a sudden?
Mon, 16 Jul 2018 11:45:51 EDT
Magnets have fascinated humans for several thousand years and enabled the age of digital data storage. They occur in various flavors. Ferrimagnets form the largest class of magnets and consist of two types of atoms. Similar to a compass needle, each atom exhibits a little magnetic moment, also called spin, which arises from the rotation of the atom's electrons about their own axes. In a ferrimagnet, the magnetic moments point in opposite directions for the two types of atoms (see panel A). Thus, the total magnetization is the sum of all magnetic moments of type 1 (M1), blue arrows) and type 2 (M2), green arrows). Due to the opposite direction, the magnitude of the total magnetization is M1-M2.
How to build efficient organic solar cells
Mon, 16 Jul 2018 11:45:43 EDT
Twenty-five researchers from seven research institutes have put their heads together to draw up rules for designing high-efficiency organic solar cells.
Sound waves reveal enormous diamond cache deep in Earth's interior
Mon, 16 Jul 2018 11:45:38 EDT
Sound waves reveal a surprisingly large diamond cache deep in Earth's interior, researchers report.
Emotional robot lets you feel how it's 'feeling'
Mon, 16 Jul 2018 11:45:34 EDT
Researchers have developed a prototype of a robot that can express 'emotions' through changes in its outer surface. The robot's skin covers a grid of texture units whose shapes change based on the robot's feelings.
Disruption tolerant networking to demonstrate Internet in space
Mon, 16 Jul 2018 11:45:26 EDT
The interplanetary Internet may soon become a reality. NASA is about to demonstrate Delay/Disruption Tolerant Networking, or DTN -- a technology that sends information through space and ground networks to its destination.
Australia has a new venomous snake -- And it may already be threatened
Mon, 16 Jul 2018 10:35:54 EDT
The ink has not yet dried on a scientific paper describing a new species of snake, yet the reptile may already be in danger of extinction due to mining. A team of biologists discovered a new species of bandy-bandy snake at Weipa on the west coast of the Cape York Peninsula.
A step closer to quantum computers: Researchers show how to directly observe quantum spin effects
Mon, 16 Jul 2018 10:35:51 EDT
Scientists have found a practical way to observe and examine the quantum effects of electrons in topological insulators and heavy metals. This could later pave the way for the development of advanced quantum computing components and devices.
Tuning into quantum: Scientists unlock signal frequency control of precision atom qubits
Fri, 13 Jul 2018 22:02:40 EDT
Scientists have achieved a new milestone in their approach to creating a quantum computer chip in silicon, demonstrating the ability to tune the control frequency of a qubit by engineering its atomic configuration.
Theorists publish highest-precision prediction of muon magnetic anomaly
Fri, 13 Jul 2018 11:19:28 EDT
Latest calculation based on how subatomic muons interact with all known particles comes out just in time for comparison with precision measurements at new 'Muon g-2' experiment.
Barium ruthenate: A high-yield, easy-to-handle perovskite catalyst for the oxidation of sulfides
Fri, 13 Jul 2018 09:51:40 EDT
Researchers have developed a ruthenium-based perovskite catalyst that shows strong activity even at low temperatures (down to 313 K). The reusable catalyst does not require additives, meaning that it can prevent the formation of toxic by-products. The oxidation of sulfides is a commercially important process with broad applications ranging from chemicals production to environmental management.
New study reveals Ulsan, South Korea, is exposed to yearlong toxic fine dust
Fri, 13 Jul 2018 09:51:38 EDT
A new study offers decisive proof that South Korea's Ulsan city is affected by toxic substances contained in fine dust particles, regardless of the season.
Teaching robots to be more reliable teammates for soldiers
Fri, 13 Jul 2018 09:35:50 EDT
Researchers have developed a new technique to quickly teach robots novel traversal behaviors with minimal human oversight.
How might dark matter interact with ordinary matter?
Fri, 13 Jul 2018 09:35:45 EDT
Scientists have imposed conditions on how dark matter may interact with ordinary matter. In the search for direct detection of dark matter, the experimental focus has been on WIMPs, or weakly interacting massive particles, the hypothetical particles thought to make up dark matter. But the research team invokes a different theory to challenge the WIMP paradigm: the self-interacting dark matter model, or SIDM.
Scientists on Twitter: Preaching to the choir or singing from the rooftops?
Fri, 13 Jul 2018 09:35:42 EDT
Who follows scientists on Twitter? Researchers found that scientists with fewer than 1,000 followers primarily reach other scientists. However, scientists with more than 1,000 followers have more types of followers, including those in the "outreach" category.
Graphene could be key to controlling water evaporation
Thu, 12 Jul 2018 20:44:25 EDT
Graphene coatings may offer the ability to control the water evaporation process from various surfaces, according to new research. The study looked at the interactions of water molecules with various graphene-covered surfaces.
Bioengineers create pathway to personalized medicine
Thu, 12 Jul 2018 14:34:43 EDT
New work could provide sustainable ways to make chemicals, medicines and biomaterials.
New molecular structures in boron-based nanoclusters
Thu, 12 Jul 2018 14:34:37 EDT
Researchers have shown that clusters of boron and lanthanide atoms form interesting 'inverse sandwich' structures that could be useful as molecular magnets.
Turn exercise into a game and see encouraging results
Thu, 12 Jul 2018 12:39:48 EDT
A team of researchers built a web-based app called MapTrek. When synced with a Fitbit, MapTrek allows users to go on virtual walking tours of locations such as the Grand Canyon or Appalachian trail while competing against other users. A study showed MapTrek and Fitbit users averaged 2,200 more steps per day than a control group that used only Fitbits.
First machine learning method capable of accurate extrapolation
Thu, 12 Jul 2018 12:39:38 EDT
Understanding how a robot will react under different conditions is essential to guaranteeing its safe operation. But how do you know what will break a robot without actually damaging it? A new machine learning method can use observations made under safe conditions to make accurate predictions for all possible conditions governed by the same physical dynamics.
Wearable device can predict older adults' risk of falling
Thu, 12 Jul 2018 12:39:35 EDT
Every year, more than one in three individuals aged 65 and older will experience a fall. Treatment and awareness of falling usually happens after a fall has already occurred. Researchers wanted to see if they could predict an individual's risk of falling so that preventative measures could be taken to reduce this risk.
Solved protein puzzle opens door to new design for cancer drugs
Thu, 12 Jul 2018 11:46:08 EDT
Researchers at have solved a longstanding puzzle concerning the design of molecular motors, paving the way toward new cancer therapies.
VERITAS supplies critical piece to neutrino discovery puzzle
Thu, 12 Jul 2018 11:45:44 EDT
The VERITAS array has confirmed the detection of gamma rays from the vicinity of a supermassive black hole. While these detections are relatively common for VERITAS, this black hole is potentially the first known astrophysical source of high-energy cosmic neutrinos, a type of ghostly subatomic particle.
Breakthrough in the search for cosmic particle accelerators
Thu, 12 Jul 2018 11:45:25 EDT
In a global observation campaign, scientist have for the first time located a source of high-energy cosmic neutrinos, ghostly elementary particles that travel billions of light years through the universe, flying unaffected through stars, planets and entire galaxies.
Quantum dot white LEDs achieve record efficiency
Thu, 12 Jul 2018 11:45:22 EDT
Researchers have demonstrated nanomaterial-based white-light-emitting diodes (LEDs) that exhibit a record luminous efficiency of 105 lumens per watt.
How gold nanoparticles could improve solar energy storage
Thu, 12 Jul 2018 11:45:14 EDT
Star-shaped gold nanoparticles, coated with a semiconductor, can produce hydrogen from water over four times more efficiently than other methods - opening the door to improved storage of solar energy and other advances that could boost renewable energy use and combat climate change, according to researchers.
Hubble and Gaia team up to fuel cosmic conundrum
Thu, 12 Jul 2018 11:44:48 EDT
Using the power and synergy of two space telescopes, astronomers have made the most precise measurement to date of the universe's expansion rate.
Chemists achieve unprecedented molecular triple jump with multi-ringed metal complexes
Thu, 12 Jul 2018 11:44:37 EDT
For decades, chemists have been mixing metals and carbon to create novel molecules, from the world's longest molecular wires to microscopic gyroscopes controllable by cage size, molecular access and even progress toward unidirectional rotation via external electrical field manipulation.
Could gravitational waves reveal how fast our universe is expanding?
Thu, 12 Jul 2018 11:44:34 EDT
An new study finds black holes and neutron stars are key to measuring our expanding universe.
Heaviest known calcium atom discovered
Thu, 12 Jul 2018 10:05:55 EDT
Researchers have discovered eight new rare isotopes of the elements phosphorus, sulfur, chlorine, argon, potassium, scandium and, most importantly, calcium. These are the heaviest isotopes of these elements ever found.