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  • General Physics News - Science News, Physics News, Physics, Material Sciences, Science
    in General Physics 10 0 Featured Last comments Popular Partners Physicists create first photonic Maxwell s demon 13 hours ago 3 MyShake New app turns smartphones into worldwide seismic network 9 hours ago 0 Most precise measurement of reactor antineutrino spectrum reveals intriguing surprise 3 hours ago 0 A new form of frozen water Scientists reveal new ice with record low density 3 hours ago 0 Scientists create ultrathin semiconductor heterostructures for new technologies 11 hours ago 0 more More news Other news Announcement Thursday on Einstein s gravitational waves Scientists are set to make a major announcement Thursday on efforts to pinpoint the existence of gravitational waves or ripples of space and time that transport energy across the universe Detection of gravitational waves would open new window on universe The first ever detection of gravitational waves which scientists could announce Thursday would open a new window on the universe and its most violent phenomena Superconductors could detect superlight dark matter Phys org Many experiments are currently searching for dark matter the invisible substance that scientists know exists only from its gravitational effect on stars galaxies and other objects made of ordinary matter Could 80 year old ether experiments have detected a cosmological temperature gradient Phys org In a new study scientists have proposed that tiny residual effects measured by ether drift experiments in the 1920s and 30s may be the first evidence of a temperature gradient that was theorized in the 1970s The universe s primordial soup flowing at CERN Researchers have recreated the universe s primordial soup in miniature format by colliding lead atoms with extremely high energy in the 27 km long particle accelerator the LHC at CERN in Geneva The primordial soup is a Absorbing acoustics with soundless spirals Researchers at the French National Centre for Scientific Research CNRS and the University of Lorraine have recently developed a design for a coiled up acoustic metasurface which can achieve total acoustic absorption in Trees found to break at near the same wind speed regardless of size or species Phys org A small team of researchers with École Polytechnique in France has found that all trees regardless of size or species tend to break at near the same wind speed In their paper published in Physical Review Physics It s happening inside your body right now Simple physics may play a larger role than previously thought in helping control key bodily processes such as how the body fights infection Chiral magnetic effect generates quantum current Scientists at the U S Department of Energy s DOE Brookhaven National Laboratory and Stony Brook University have discovered a new way to generate very low resistance electric current in a new class of materials The discovery Physicists investigate the structure of time with implications for quantum mechanics and philosophy Phys org Although in theory it may seem possible to divide time up into infinitely tiny intervals the smallest physically meaningful interval of time is widely considered to be the Planck time which is approximately Earthquake power laws emerge in bamboo chopsticks w video Phys org Whereas a dry twig can be broken with a single snap breaking a bamboo chopstick produces more than 400 crackling sounds In a new study researchers have found similarities between the complex acoustic emission Exploring gambles reveals foundational difficulty behind economic theory and a solution In the wake of the financial crisis many started questioning different aspects of the economic formalism Fast moving invisibility cloaks become visible Phys org Physicists have found that invisibility cloaks that can achieve perfect invisibility when not in motion will become visible when moving at speeds of around thousands of meters per second This is because invisibility Scientists propose high efficiency wireless power transfer system Phys org Currently commercial wireless power transfer is limited mainly to charging pads for phones instead of plugging your phone directly into the wall simply place it on top of a wireless charging pad In the future 3 D printing confirms physical model of brain folds The distinctive troughs and crests of the human brain are not present in most animals highly folded brains are seen only in a handful of species including some primates dolphins elephants and pigs In humans folding Coupling two tabletop laser plasma accelerators A step toward ultrapowerful accelerators Laser plasma accelerators LPAs got the nickname tabletop because as shown by the unique BELLA accelerator at the U S Department of Energy s Lawrence Berkeley National Laboratory Berkeley Lab they can boost electron Partitioning by collision An ensemble consisting of a binary mixture of particles of equal size can partition itself into its component fractions provided that the two species differ in their diffusion constants Walking on water Researchers unravel science of skipping spheres It takes a perfect flick of the wrist and just the right angle to get a disk shaped stone to skip across the surface of the water multiple times So why is it so easy to get such impressive water skipping performance from Physicists create first photonic Maxwell s demon Phys org Maxwell s demon a hypothetical being that appears to violate the second law of thermodynamics has been widely studied since it was first proposed in 1867 by James Clerk Maxwell But most of these studies have MyShake New app turns smartphones into worldwide seismic network University of California Berkeley scientists are releasing a free Android app that taps a smartphone s ability to record ground shaking from an earthquake with the goal of creating a worldwide seismic detection network A new form of frozen water Scientists reveal new ice with record low density Amid the season known for transforming Nebraska into an outdoor ice rink a University of Nebraska Lincoln led research team has predicted a new molecular form of the slippery stuff that even Mother Nature has never borne Scientists create ultrathin semiconductor heterostructures for new technologies Heterostructures formed by different three dimensional semiconductors form the foundation for modern electronic and photonic devices Now University of

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  • A new form of frozen water? Scientists reveal new ice with record-low density
    density of natural ice protects the water below it if it were denser water would freeze from the bottom up and no living species could survive So Mother Nature s combination is just so perfect If confirmed the new form of ice will be called Ice XVII a naming quirk that resulted from scientists terming the first two identified forms Ice I Zeng and Zhao co authored the Science Advances study with UNL postdoctoral researcher Chongqin Zhu Yingying Huang a visiting research fellow from the Dalian University of Technology and researchers from the Chinese Academy of Sciences and the University of Science and Technology of China Explore further Scientists create one dimensional ferroelectric ice More information A new phase diagram of water under negative pressure The rise of the lowest density clathrate s III advances sciencemag org content 2 2 e1501010 Journal reference Science Advances Provided by University of Nebraska Lincoln 1220 shares feedback to editors Tweet Favorites Email Print PDF Featured Last comments Popular Detection of gravitational waves would open new window on universe Feb 10 2016 58 Gravitational waves detected 100 years after Einstein s prediction Feb 11 2016 144 Scientists discover hidden galaxies behind the Milky Way Feb 09 2016 3 GPS tracking down to the centimeter Feb 11 2016 10 A metal that behaves like water Feb 11 2016 2 more Phys org on facebook Relevant PhysicsForums posts When is ΔH ΔU 5 hours ago Which group has greater steric hindrance Feb 11 2016 Comparison Calibration Method Feb 11 2016 Which compound will be extracted in organic layer Feb 10 2016 Kinetic vs thermodynamics control Feb 10 2016 Electroplating with mixed metal electrodes Feb 10 2016 More from Chemistry Related Stories Scientists create one dimensional ferroelectric ice February 25 2011 PhysOrg com Everyone knows that when water freezes it forms ice But a lesser known fact is that there is not one but many different kinds of ice depending on the way the ice crystals are arranged In a new study Nebraska Ice leads to three more discoveries December 12 2012 Phys org Nebraska Ice is the discovery that just keeps on giving for chemist Xiao Cheng Zeng and his research team at the University of Nebraska Lincoln New material could help with carbon storage February 27 2014 New research led by University of Nebraska Lincoln chemist Xiao Cheng Zeng has led to the discovery of a new material that could have significant implications for a variety of challenges from carbon dioxide storage to planetary Chipping away at the secrets of ice formation October 21 2015 Making ice to chill our drinks is easy enough but surprisingly the details of that seemingly simple process are still not well understood Now scientists report in the Journal of the American Chemical Society that they Researchers provide a unified explanation of changes in volume of ice November 18 2015 The most common form of ice existing at ambient pressure on Earth is known as ice Ih This is one

    Original URL path: http://phys.org/news/2016-02-frozen-scientists-reveal-ice-record-low.html (2016-02-13)
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  • Materials Science News - Chemistry News
    ago 3 MyShake New app turns smartphones into worldwide seismic network 9 hours ago 0 Most precise measurement of reactor antineutrino spectrum reveals intriguing surprise 3 hours ago 0 A new form of frozen water Scientists reveal new ice with record low density 3 hours ago 0 Scientists create ultrathin semiconductor heterostructures for new technologies 11 hours ago 0 more More news Other news Carbon dioxide captured from air can be directly converted into methanol fuel Phys org For the first time researchers have demonstrated that CO2 captured from the air can be directly converted into methanol CH3OH using a homogeneous catalyst The benefits are two fold The process removes harmful The future of medicine could be found in this tiny crystal ball A Drexel University materials scientist has discovered a way to grow a crystal ball in a lab Not the kind that soothsayers use to predict the future but a microscopic version that could be used to encapsulate medication Startup announces development of flexiramics ceramics with paper like properties Phys org Dutch startup Eurekite has announced on their web page that they have developed a new kind of ceramic one that is both flexible and easily made at varying degrees of thickness The company affiliated with the Host guest nanowires for efficient water splitting and solar energy storage California is committed to 33 percent energy from renewable resources by 2020 With that deadline fast approaching researchers across the state are busy exploring options Solar energy is attractive but for widespread adoption Excited state proton transfer catalysis allows scientists to observe basic chemical reactions What if light or the lack thereof could start and stop a chemical reaction in its tracks giving scientists a freeze frame approach to study and control some of the most basic chemical reactions Team devises easier way to make bijels a complex new form of liquid matter Oil and water famously don t mix but finely dispersing one in the other produces a liquid mixture with many useful properties An emulsion consisting of tiny droplets of one of those liquids immersed in the other is the Synthetic strategy for enantioselective aldol reactions with fluoroacetate Phys org Fluorine the most electronegative atom on the periodic table has some interesting applications in organic and medicinal chemistry Replacing hydrogen with fluorine can often boost biological activity and carbon fluorine Nanopores may be trapping oil and gas in kerogen instead of allowing them to flow The dark colored hydrocarbon solid known as kerogen gives rise to the fuels that power many of our daily activities Petroleum is the source of gasoline and diesel fuels and natural gas is used for cooking heating and Sandcastle worms serve as inspiration for a new type of underwater adhesive being developed An interdisciplinary group of researchers at UC Santa Barbara has taken strides in the development of an underwater adhesive that has the potential for a variety of biomedical and non biological applications Areas such as First materials to be woven at the atomic and molecular levels created There are many different ways to make nanomaterials but weaving the oldest and most enduring method of making fabrics has not been one of them until now An international collaboration led by scientists at the U S Department Robotic fingers with a gentle touch Have you ever rubbed a balloon in your hair to make it stick to the wall This electrostatic stickiness called electroadhesion may change robotics forever Scientists explore the origins of energy in chemical reactions using experimental quantum chemistry Phys org One thing that all chemical reactions have in common whether they are the reactions that take place inside a battery the metabolic reactions inside a living organism or the combustion reactions that cause Water soluble non peptide foldamers with tunable higher order conformations Foldamers are a class of synthetic structures modeled after proteins but are designed to form unique non natural tertiary and quaternary structures Like proteins they are comprised of hydrophobic and hydrophilic subunits Simple hydrogen storage solution is powered by solar energy Phys org By using solar energy to reversibly attach and detach hydrogen atoms on a 6 carbon ring called benzene scientists have developed a simple and efficient method to store transport and release hydrogen potentially Tiny sponges behave in a counterintuitive way when adsorbing water Phys org When a kitchen sponge adsorbs water into its pores it softens and expands Now in a new study published in The Journal of Physical Chemistry Letters scientists have discovered that when microporous materials Solar battery receives 20 of its energy from the sun Phys org Last October researchers at Ohio State demonstrated the world s first solar battery a solar cell and a lithium oxygen Li O2 battery combined into a single device The main attraction of the solar battery Crystal frameworks hold potential to deter pollution Chemists at Massey University have created a hybrid crystal framework which has the potential for applications in vehicle fuel storage carbon dioxide removal from smokestacks and drug delivery Block copolymer hydrogels as multifunctional effective cryoprotecting agents for red blood cells Freezing of medical tissue and cells usually requires the addition of cryopreservatives although the added compounds can have undesired effects in subsequent applications In the journal Angewandte Chemie British scientists Physicists create first photonic Maxwell s demon Phys org Maxwell s demon a hypothetical being that appears to violate the second law of thermodynamics has been widely studied since it was first proposed in 1867 by James Clerk Maxwell But most of these studies have MyShake New app turns smartphones into worldwide seismic network University of California Berkeley scientists are releasing a free Android app that taps a smartphone s ability to record ground shaking from an earthquake with the goal of creating a worldwide seismic detection network Most precise measurement of reactor antineutrino spectrum reveals intriguing surprise Members of the International Daya Bay Collaboration who track the production and flavor shifting behavior of electron antineutrinos generated at a nuclear power complex

    Original URL path: http://phys.org/chemistry-news/materials-science/?utm_source=subcateg&utm_medium=link&utm_campaign=tmpl-main-l (2016-02-13)
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  • Scientists create ultrathin semiconductor heterostructures for new technologies
    said Seyler The electrons in each layer have unique spin and valley properties and how you position them their twist angle affects how they interact with light By aligning the crystal lattices the authors could excite the heterostructure with a laser and create optically active excitons between the two layers These excitons at the interface can store valley information for orders of magnitude longer than either of the layers on their own said Rivera This long lifetime allows for fascinating effects which may lead to further optical and electronic applications with valley functionality Now that they can efficiently make a semiconductor heterostructure out of 2 D materials Xu and his team would like to explore a number of fascinating physical properties including how exciton behavior varies as they change angles between the layers the quantum properties excitons between layers and electrically driven light emission There s a whole industry that wants to use these 2 D semiconductors to make new electronic and photonic devices said Xu So we re trying to study the fundamental properties of these new heterostructures for things like efficient laser technology light emitting diodes and light harvesting devices These will hopefully be useful for clean energy and information technology applications It is quite exciting but there s a lot work to do Explore further Scientists craft atomically seamless thinnest possible semiconductor junctions More information P Rivera et al Valley polarized exciton dynamics in a 2D semiconductor heterostructure Science 2016 DOI 10 1126 science aac7820 Journal reference Science Provided by University of Washington 535 shares feedback to editors Tweet Favorites Email Print PDF Featured Last comments Popular Detection of gravitational waves would open new window on universe Feb 10 2016 58 Gravitational waves detected 100 years after Einstein s prediction Feb 11 2016 144 Scientists discover hidden galaxies behind the Milky Way Feb 09 2016 3 GPS tracking down to the centimeter Feb 11 2016 10 A metal that behaves like water Feb 11 2016 2 more Phys org on facebook Relevant PhysicsForums posts Surprising high energetic event at the LHC 58 minutes ago Renormalization of Bound States in QFT 5 hours ago Inner product on spinor space 6 hours ago Discovery of Gravity Waves and Gravitons 15 hours ago Higgs top resonances Feb 11 2016 Strong Flavor Dynamics for tops questions Feb 11 2016 More from High Energy Nuclear Particle Physics Related Stories Scientists craft atomically seamless thinnest possible semiconductor junctions August 26 2014 Scientists have developed what they believe is the thinnest possible semiconductor a new class of nanoscale materials made in sheets only three atoms thick Defects in atomically thin semiconductor emit single photons May 4 2015 Researchers at the University of Rochester have shown that defects on an atomically thin semiconductor can produce light emitting quantum dots The quantum dots serve as a source of single photons and could be useful for Sticky tape phosphorus the key to ultrathin solar cells July 20 2015 Scientists studying thin layers of phosphorus have found surprising

    Original URL path: http://phys.org/news/2016-02-scientists-ultrathin-semiconductor-heterostructures-technologies.html (2016-02-13)
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  • Nanophysics News - Nanotechnology News, Nanotech News
    New app turns smartphones into worldwide seismic network 9 hours ago 0 Most precise measurement of reactor antineutrino spectrum reveals intriguing surprise 3 hours ago 0 A new form of frozen water Scientists reveal new ice with record low density 3 hours ago 0 Scientists create ultrathin semiconductor heterostructures for new technologies 11 hours ago 0 more More news Other news Magnetically controlled battery could store energy for power grids Phys org Scientists have built a battery containing a magnetic fluid that can be moved in any direction by applying a magnetic field The magnetically controlled battery concept could be especially useful for flow batteries Stretchable transparent heater made from metallic glass Phys org Researchers have fabricated a stretchable and transparent electrode that can be used for applications such as heating parts of the body and defrosting the side view mirrors on cars It is the first stretchable Microgears rotate when pushed by tiny motors Phys org Researchers have designed a new type of microgear that spins when micromotors become lodged into the corners of the gear s teeth The micromotors use the surrounding hydrogen peroxide solution as fuel to propel Scientists demonstrate first color tunable and first graphene based LED Phys org Currently all light emitting diodes LEDs emit light of only one color which is predefined during fabrication So far tuning the color of light produced by a single LED has never been realized despite numerous Delicately opening a band gap in graphene enables high performance transistors Phys org Electrons can move through graphene with almost no resistance a property that gives graphene great potential for replacing silicon in next generation highly efficient electronic devices But currently it s Amoeba inspired computing system outperforms conventional optimization methods Phys org Researchers have designed and implemented an algorithm that solves computing problems using a strategy inspired by the way that an amoeba branches out to obtain resources The new algorithm called AmoebaSAT Scientists fabricate hexagonal silicon potentially leading to light emitting semiconductors Phys org Virtually all semiconductors used in today s electronic devices are made of silicon having a cubic crystal structure as silicon naturally crystallizes in the cubic form In a new study researchers have fabricated Electrical circuit made of gel can repair itself Phys org Scientists have fabricated a flexible electrical circuit that when cut into two pieces can repair itself and fully restore its original conductivity The circuit is made of a new gel that possesses a combination Scientists propose 3D graphene like hyper honeycomb structures Phys org Scientists have proposed a new family of structures that are three dimensional 3D variations of graphene the simplest example of which is called a hyper honeycomb If the proposed structures can be experimentally Tiny gears increase light to work conversion efficiency by five orders of magnitude w video Phys org Scientists have demonstrated that pinwheel shaped microgears floating on a liquid surface can rotate at speeds of up to 300 r p m when illuminated by an ordinary LED This light driven motion which arises because Nanographene charge trapping memory could further miniaturize flash Phys org Flash memory the data storage method often used in phones computers and other devices is continually being miniaturized in order to improve device performance In an attempt to reduce the short circuiting Harmful effects paradoxically enhance solar cell efficiency Phys org Dissipation and decoherence are typically considered harmful to solar cell efficiency but in a new paper scientists have shown that these effects paradoxically make the exciton lifetime in semiconducting carbon Fuel free nanomotor is powered by ultrasound and magnetic fields Phys org Nanoscale motors like their macroscale counterparts can be built to run on a variety of chemical fuels such as hydrogen peroxide and others But unlike macroscale motors some nanomotors can also run without Heart shaped Li ion battery printed on a cup shows batteries can be printed almost anywhere Scientists have developed a new technique that can print batteries on almost any surface which is expected to be essential for future flexible electronics such as roll up displays smart electronic clothing and Google Glass type Semiliquid battery competitive with both Li ion batteries and supercapacitors Phys org A new semiliquid battery developed by researchers at The University of Texas at Austin has exhibited encouraging early results encompassing many of the features desired in a state of the art energy storage device Straintronic spin neuron may greatly improve neural computing Phys org Researchers have proposed a new type of artificial neuron called a straintronic spin neuron that could serve as the basic unit of artificial neural networks systems modeled on human brains that have the ability Switchable material could enable new memory chips Two MIT researchers have developed a thin film material whose phase and electrical properties can be switched between metallic and semiconducting simply by applying a small voltage The material then stays in its new configuration Optical metacage blocks light from entering or escaping Phys org Physicists have built a nanowire cage that blocks one or more wavelengths of light from either entering or escaping yet allows liquids and gases to pass through the small gaps between the nanowires The optical Physicists create first photonic Maxwell s demon Phys org Maxwell s demon a hypothetical being that appears to violate the second law of thermodynamics has been widely studied since it was first proposed in 1867 by James Clerk Maxwell But most of these studies have MyShake New app turns smartphones into worldwide seismic network University of California Berkeley scientists are releasing a free Android app that taps a smartphone s ability to record ground shaking from an earthquake with the goal of creating a worldwide seismic detection network Most precise measurement of reactor antineutrino spectrum reveals intriguing surprise Members of the International Daya Bay Collaboration who track the production and flavor shifting behavior of electron antineutrinos generated at a nuclear power complex in China have obtained the most precise measurement A new form of frozen water Scientists reveal

    Original URL path: http://phys.org/nanotech-news/nano-physics/?utm_source=subcateg&utm_medium=link&utm_campaign=tmpl-main-l (2016-02-13)
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  • New study confirms giant flightless bird wandered the Arctic 50 million years ago
    north to Ellesmere Island every year or lived there year round said Stidham Given the fossils we have both hypotheses are possible he said There are some sea ducks today that spend the winter in the cold freezing Arctic and we see many more species of waterfowl that are only in the Arctic during the relatively warmer spring and summer months The paleontology team working on Ellesmere Island in the 1970s and who found the Gastornis and Presbyornis bones in the 1970s included Mary Dawson Robert Mac West Howard Hutchinson and Malcolm McKenna The new study has implications for the rapidly warming Arctic climate primarily a result of greenhouse gases being pumped into Earth s atmosphere by humans Permanent Arctic ice which has been around for millennia is on track to disappear Eberle said I m not suggesting there will be a return of alligators and giant tortoises to Ellesmere Island any time soon But what we know about past warm intervals in the Arctic can give us a much better idea about what to expect in terms of changing plant and animal populations there in the future Explore further 53 million year old high Arctic mammals wintered in darkness More information Thomas A Stidham et al The palaeobiology of high latitude birds from the early Eocene greenhouse of Ellesmere Island Arctic Canada Scientific Reports 2016 DOI 10 1038 srep20912 Journal reference Scientific Reports Nature Provided by University of Colorado at Boulder 1052 shares feedback to editors Tweet Favorites Email Print PDF Featured Last comments Popular Detection of gravitational waves would open new window on universe Feb 10 2016 58 Gravitational waves detected 100 years after Einstein s prediction Feb 11 2016 144 Scientists discover hidden galaxies behind the Milky Way Feb 09 2016 3 GPS tracking down to the centimeter Feb 11 2016 10 A metal that behaves like water Feb 11 2016 2 more Phys org on facebook Relevant PhysicsForums posts Greenhouse effect on planetary equilibrium temperature help Feb 11 2016 Scott found Amundsen Flag Feb 09 2016 Mag 6 4 Earthquake near Pingtung Taiwan Feb 06 2016 Direction of polar jet Feb 04 2016 Why does the heat in the atmosphere mostly go down Feb 03 2016 Hurricane reduction through ocean surface cooling Jan 30 2016 More from Earth Related Stories 53 million year old high Arctic mammals wintered in darkness June 1 2009 PhysOrg com Ancestors of tapirs and ancient cousins of rhinos living above the Arctic Circle 53 million years ago endured six months of darkness each year in a far milder climate than today that featured lush swampy Arctic climate may be more sensitive to warming than thought says new study June 29 2010 A new study shows the Arctic climate system may be more sensitive to greenhouse warming than previously thought and that current levels of Earth s atmospheric carbon dioxide may be high enough to bring about significant New study shows how giant tortoises alligators thrived in High Arctic 50 million years

    Original URL path: http://phys.org/news/2016-02-giant-flightless-bird-arctic-million.html (2016-02-13)
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  • Archaeology News - Fossil News, Archaeological Science, Archaeology, Fossils
    in Archaeology Fossils 119 0 Featured Last comments Popular Partners Physicists create first photonic Maxwell s demon 13 hours ago 3 MyShake New app turns smartphones into worldwide seismic network 9 hours ago 0 Most precise measurement of reactor antineutrino spectrum reveals intriguing surprise 3 hours ago 0 A new form of frozen water Scientists reveal new ice with record low density 3 hours ago 0 Scientists create ultrathin semiconductor heterostructures for new technologies 11 hours ago 0 more More news Other news Model suggests Neanderthal extinction occurred due to human cultural superiority Phys org A trio of researchers two with Stanford University in the U S and the third with Meiji University in Japan has created a model that showed that it might be possible that the Neanderthal extinction that occurred A penis in amber A research team led by Jason Dunlop from the Museum für Naturkunde Berlin Germany published in the international journal The Science of Nature the unusual discovery of a 99 million year old harvestman with an extended Ancient extinction of giant Australian bird points to humans The first direct evidence that humans played a substantial role in the extinction of the huge wondrous beasts inhabiting Australia some 50 000 years ago in this case a 500 pound bird has been discovered by a University Did the Vikings use crystal sunstones to discover America Ancient records tell us that the intrepid Viking seafarers who discovered Iceland Greenland and eventually North America navigated using landmarks birds and whales and little else There s little doubt that Viking sailors Turtle soup perchance Prehistoric man had a penchant for tortoises Grilled boiled or salted Turtles or tortoises are rarely consumed today but a select few cultures primarily those in East Asia still consider turtle soup made from the flesh of the turtle a delicacy Extinct crustacean Dollocaris was all eyes A tiny but scary looking marine critter that died out with the dinosaurs caught prey with the aid of two monstrous eyes each a quarter of its body length scientists said Tuesday Paleontologists link leg length to running ability in bipedal carnivorous dinosaurs A new study in leg length among carnivorous dinosaurs has yielded a formula to identify adaptations for speed The theory is simple to run faster dinosaurs evolved longer legs World s oldest tea found in Chinese emperor s tomb The tomb of a Chinese emperor who lived more than 2 100 years ago has yielded the oldest remains of tea said researchers who used it to re date part of the ancient Asian Silk Road Stone age tools found but who wielded them Scientists have discovered stone age tools at least 118 000 years old on an Indonesian island but no trace of the early humans that made them according to a study released Wednesday Measurements of dinosaur body temperatures shed new light on 150 year debate Were dinosaurs really fast aggressive hunters like the ones depicted in the movie Jurassic World Or did they have lower metabolic rates that made them move more like today s alligators and crocodiles For 150 years scientists Egypt says King Tut mask was scratched sends 8 to trial King Tut hasn t been around for a few thousand years but his power remains after a botched repair job of the famed pharaoh s beard left scratches on his burial mask Egyptian prosecutors have ordered eight museum workers DNA from Inca boy sacrificed 500 years ago shows how humans spread to South America It sounds like something straight out of a Hunger Games novel The rulers of a sprawling empire select beautiful children from throughout their vast territories and kill them in a ritualistic event to reinforce their power 76 million year old extinct species of pig snouted turtle unearthed in Utah In the 250 million year evolutionary history of turtles scientists have seen nothing like the pig nose of a new species of extinct turtle discovered in Grand Staircase Escalante National Monument by a team from the Natural Research team identifies rare dinosaur from Appalachia An international team of researchers has identified and named a new species of dinosaur that is the most complete primitive duck billed dinosaur to ever be discovered in the eastern United States Geologist says dinosaur fossils found in western India A geologist said Saturday his team has discovered what it believes are dinosaur fossils in the western Indian state of Gujarat that could be millions of years old DNA analysis of Denisovan molars offers more clues about ancient human relative Phys org A team of researchers with members from Germany Canada and Russia has conducted a DNA analysis of two molars found in the Denisova caves in Siberia shedding more light on the origins of the Denisovans a hominin Ancient genome from Africa sequenced for the first time The first ancient human genome from Africa to be sequenced has revealed that a wave of migration back into Africa from Western Eurasia around 3 000 years ago was up to twice as significant as previously thought and affected Ancient babies boost Bering land bridge layover DNA links many Native Americans to infants in Alaskan grave University of Utah scientists deciphered maternal genetic material from two babies buried together at an Alaskan campsite 11 500 years ago They found the infants had different mothers and were the northernmost known kin Physicists create first photonic Maxwell s demon Phys org Maxwell s demon a hypothetical being that appears to violate the second law of thermodynamics has been widely studied since it was first proposed in 1867 by James Clerk Maxwell But most of these studies have MyShake New app turns smartphones into worldwide seismic network University of California Berkeley scientists are releasing a free Android app that taps a smartphone s ability to record ground shaking from an earthquake with the goal of creating a worldwide seismic detection network Most precise measurement of reactor antineutrino spectrum reveals intriguing surprise Members of the International Daya Bay Collaboration who

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  • When black holes meet—inside the cataclysms that cause gravitational waves
    violent and exotic event is one of the most sought after observations of modern astronomy But as these mergers emit no light of any kind finding such elusive events has been Missing gravitational waves lead to black hole rethink October 21 2015 Human understanding of galaxies and black holes is being called into question after an 11 year search for mysterious gravitational waves famously predicted by Albert Einstein 100 years ago failed to find anything Black holes could grow as large as 50 billion suns before their food crumbles into stars according to research December 18 2015 Black holes at the heart of galaxies could swell to 50 billion times the mass of the sun before losing the discs of gas they rely on to sustain themselves according to research at the University of Leicester Rare galaxy with 2 black holes has 1 starved of stars January 5 2016 An astrophysicist has discovered something even rarer than a double black hole galaxy a skinny black hole Hubble image The sleeping giant February 11 2016 The placid appearance of NGC 4889 can fool the unsuspecting observer But the elliptical galaxy pictured in this new image from the NASA ESA Hubble Space Telescope harbours a dark secret At its heart lurks one of the most Recommended for you When black holes meet inside the cataclysms that cause gravitational waves February 12 2016 It has long been predicted that when two black holes merge they ought to give out a staggering amount of energy in the form of gravitational waves Caught in the act Astronomers find a rare supernova impostor in a nearby galaxy February 12 2016 Breanna Binder a University of Washington postdoctoral researcher in the Department of Astronomy and lecturer in the School of STEM at UW Bothell spends her days pondering X rays Farewell Philae Earth says goodbye to comet probe Update 2 February 12 2016 Scientists gave up Friday trying to contact robot lab Philae stubbornly silent on the surface of a comet streaking through space closing a captivating chapter in an historic quest Saturn and Enceladus produce the same amount of plasma February 12 2016 The first evidence that Saturn s upper atmosphere may when buffeted by the solar wind emit the same total amount of mass per second into its magnetosphere as its moon Enceladus has been found by UCL scientists working Gravitational waves found black hole models led the way February 11 2016 Gravitational waves were predicted by Einstein s theory of general relativity in 1916 and now almost exactly 100 years later the faint ripples across space time have been found The advanced Laser Interferometric Gravitational wave The glitching of the Vela pulsar February 9 2016 Phys org A team of Australian astronomers has conducted an intensive observation of a curious young pulsar to investigate changes in its rotation frequency known as glitching Located about 910 light years from the 46 comments 2 5 Adjust slider to filter visible comments by rank Display comments newest first cantdrive85 2 8 5 9 13 hours ago When black holes meet It s a unicorn convention bschott 2 5 5 8 13 hours ago When black holes meet It s a unicorn convention Yes but you can only see the unicorns if you flash your Mainstream faith worship membership card along with your gullibility badge Therefore the best comedy show on earth is sadly beyond the reach of devoted laugh seekers why God why Solon 3 3 5 7 10 hours ago When did black holes become fact and not theory Maybe now they will use the supposed gravity wave detection to prove black holes exist antialias physorg 3 5 5 11 10 hours ago When did black holes become fact and not theory They always have Yesterday was just the point where even the most rabidly anti science fanatic could no longer go Black holes don t exist without realizing himself how dumb he is The science is in Deal with it Phys1 3 7 5 12 10 hours ago I encourage anyone to overthrow any theory of physics with solid arguments However only a fool would try to do this without solid arguments This is exactly what the first three posters are trying to do bschott 3 2 5 9 9 hours ago When did black holes become fact and not theory They always have Yesterday was just the point where even the most rabidly anti science fanatic could no longer go Black holes don t exist without realizing himself how dumb he is The science is in Deal with it Nah they still don t exist But thank you LIGO team for going that extra mile to attempt to perpetuate the myth And thank you loyal physorg following for lapping it up the way you do everything that supports you belief system You re being snowed deal with it antialias physorg 3 5 5 8 9 hours ago Nah they still don t exist I ve heard you and others repeat this countless times But until now I haven t seen a single argument brought forth much less any kind of observational evidence why you think this So yeah you re the one stuck in a belief system You base your assertions on nothing Which is the very definition of what a belief system is Phys1 3 3 5 7 9 hours ago And thank you loyal physorg following There is no loyalty involved If I could overthrow GRT I would but so far I have heard absolutely nothing that disproves GRT Your rants included bschott 3 5 6 8 hours ago Nah they still don t exist I ve heard you and others repeat this countless times But until now I haven t seen a single argument brought forth much less any kind of observational evidence why you think this you re the one stuck in a belief system You base your assertions on nothing Which is the definition of a belief system I have presented it repeatedly in every thread where it has come up Most of the time I have had to reword it many different ways in the same thread because the english words I use somehow confuse mainstream believers I am not the one stuck in a belief system because I disbelieve in these theories and the claims of validation I base ALL of my assertions about mainstream physics around the contradictions which I constantly point out here that exist in mainstream physics When this happens and I wind up debating any of you about it your tactic is always ignore the contradiction and post an appeal to authority Zorcon 2 5 4 8 hours ago When did black holes become fact and not theory Only a theory is chumpspeak for not confirmed with hard data from primitive mythology antialias physorg 3 4 5 5 8 hours ago Most of the time I have had to reword it many different ways in the same thread because the english words I use somehow confuse mainstream believers The only one confused is you because if you weren t you could actually put some math to your assertions and if you would try that you would quickly find out that it doesn t work So yeah You have a belief in nothing Least of all anything you would put to a theoretical much less a practical test That s just like the thou shalt not put your god to the test business in religion Now if you think religion isn t worth the time of day because it cannot be tested then you understand why we think your assertions aren t worth the time of day Write it up I dare you I double dare you bschott 4 3 5 6 8 hours ago Examples Discussing a DM component to the solar system with you Antialias Not one time in the whole discussion did you acknowledge that DM was never part of Newtons Keplers or Einsteins equations of motion So that to add it now because of galactic motion adds a component to the solar system that was unaccounted for despite how correct those equations are Then there s Fizzout and his link to the Shapiro delay https en wikipe ro delay Only can mainstream physics claim speed C is constant formulate GR around it then claim an experiment which shows speed C is variable supports GR While also claiming distances and timelines are correct based on calculations of speed C being constant Measuring a decrease in gravity beyond a certain depth in a planetary body yet still modelling a maximum density at the core due to increasing pressure all the way down while simultaneously measuring a decrease in the force that exerts the pressure bschott 4 3 5 6 8 hours ago Sunspots clearly demonstrate a cooling with depth as far as the sun is concerned Only math and denial keep that model alive Roche limit planets help moons coalesce due to their gravitational influence until they try to rip them apart due to gravitational influence Redshift proves Spacetime is expanding yet not all light is redshifted The CMB is a 13 75 billion year old light echo from an event that occurred due to impossible physics and the main evidence that it occurred is the echo The only way we can alter lights path is interaction with an EM field the only way the universe can do it is gravity The pile of horseshit is so big it was probably what spawned the gravitational wave that set off LIGO You post about evidence practical tests when most of them that you consider science work to prove each other wrong then ask for math to prove myself correct LMAO I don t need to provide my math when yours is as contradictory as it is Enthusiastic Fool 3 4 5 5 7 hours ago When did black holes become fact and not theory Maybe now they will use the supposed gravity wave detection to prove black holes exist If you have a better explanation for the movement of objects around Sgr A I d love to hear it Scientific theory and a fact are not mutually exclusive descriptions The Theory of Heliocentricity Theory of Evolution Germ Theory of Disease etc etc Using gravitational waves a prediction of General Relativity to support the existence of black holes another prediction of General Relativity is not illogical These are separate yet converging lines of evidence validating GR as a whole Troll on man troll on RealityCheck 3 8 5 6 7 hours ago Hi bschott Measuring a decrease in gravity beyond a certain depth in a planetary body yet still modelling a maximum density at the core due to increasing pressure all the way down while simultaneously measuring a decrease in the force that exerts the pressure Consider PRESSURE is due to weighing down by OVERBURDEN mass which INCREASES as you descend INTERNAL radial NET GRAVITY effect on Earth material must DECREASE as one goes downwards along a radial because downwards gravitational effect is now increasingly opposed by UPWARDS gravitational effect from increasing OVERBURDEN mass So pressure forces INCREASE due to ever greater weight material PUSHING DOWN with ever greater COMPRESSIVE force from ABOVE interior location you measure gravity at while gravity strength DECREASES as one goes DOWNWARDS towards CENTER where NET gravity effect is practically ZERO on central mass BUT pressure is MAXIMUM on same Less emotion more logic bschott 4 5 4 7 hours ago Hey RC The force of gravity is required for any mass to exert pressure When travelling downwards if you pass the point layer where gravity is greatest then that layer is pulling everything towards it It is impossible to increase pressure if the gravitational acceleration in a direction is zero Why do you think volcanoes don t spew out heavier material than what we find in the earths crust Enthusiastic Fool 3 5 5 6 hours ago bullschott Only can mainstream physics claim speed C is constant formulate GR around it then claim an experiment which shows speed C is variable supports GR While also claiming distances and timelines are correct based on calculations of speed C being constant C is constant in the shapiro effect The path is lengthened by the gravitational field which results in longer travel times This is time dilation I m going to appropriate a Kent Hovind quote just for you scoffers are willingly ignorant willingly ignorant In the Greek that means dumb on purpose Scroofinator 5 5 2 6 hours ago I encourage anyone to overthrow any theory of physics with solid arguments Well then I wish to overthrow relativity er well the LIGO experiment does That is what interferometers were designed to do detect ether Can someone explain to me how this test is fundamentally different from the orignal MM experiment Scroofinator 2 6 5 5 6 hours ago but so far I have heard absolutely nothing that disproves GRT Galactic rotation bschott 3 2 5 5 6 hours ago C is constant in the shapiro effect The path is lengthened by the gravitational field which results in longer travel times This is time dilation Hey fool this means you need to know every single gravitational influence acting upon every beam of photons that you and the mainstream claim to know the distance to source for in order to factor the Shapiro effect into each one of the calculations It would be wilfully ignorant to perform these calculations without doing so Since all sources aren t known claiming knowledge of the distance is wilfully ignorant RealityCheck 3 7 5 6 6 hours ago Hi bschott Hey RC The force of gravity is required for any mass to exert pressure When travelling downwards if you pass the point layer where gravity is greatest then that layer is pulling everything towards it It is impossible to increase pressure if the gravitational acceleration in a direction is zero Why do you think volcanoes don t spew out heavier material than what we find in the earths crust The first part of your reply makes sense as far as it goes But consider further Which part mass above below has the freedom to MOVE And in what direction Even as the lower mass is attracted by the overburden mass the tendency for them to move towards each other is what compresses them with only the upper masses tending to move down and so weigh upon and compresses the lower mass IN SITU Hence increasing CUMULATIVE pressure PROFILE while decreasing NET gravity effect PROFILE as one moves down a radial It s subtle and tricky Careful toddjnsn 5 5 3 6 hours ago One thing though According to one article in Scientific American black holes collide all the time in the universe this was just the first one we were able to detect then whip out the gravitational wave measurement device I could understand if this puppy was on the other side of the galaxy or something or even in a neighboring one but it s 1 3 BILLION light years away How do we know it s from IT and not some other gravitational collision or an interference pattern from multiple Phys1 3 5 3 5 hours ago but so far I have heard absolutely nothing that disproves GRT Galactic rotation Unless there is DM But even the alternative a long range modification of GRT would not affect the validity of the LIGO result Phys1 3 5 4 5 hours ago Examples Discussing a DM component to the solar system with you Antialias Not one time in the whole discussion did you acknowledge that DM was never part of Newtons Keplers or Einsteins equations of motion DM is not relevant to the Solar system s internal dynamics Phys1 2 5 5 4 5 hours ago Hey fool this means you need to know every single gravitational influence acting upon every beam of photons that you and the mainstream claim to know the distance to source for in order to factor the Shapiro effect into each one of the calculations Hey psychopath Isn t that the Shapiro effect The cumulative impact of gravitational potential along the path of a light beam d0nkey 2 5 4 5 hours ago Some people just need a high five in the face with a chair I honestly feel bad for anyone who believes these trolls I mean imagine if any of these people have children How sad for them Phys1 3 5 3 5 hours ago I encourage anyone to overthrow any theory of physics with solid arguments Well then I wish to overthrow relativity er well the LIGO experiment does I stated with solid arguments Only a fool would try without Remember reid barnes 3 5 3 5 hours ago Whether space physically interacts in a gravitational field or not does not address the problem that the non Euclidean geometry of the general theory of relativity is self contradicting Even if Einstein is correct that space does interact in a gravitational field or near massive bodies his statement that in the presence of a gravitational field the geometry is not Euclidean cannot be correct if that non Euclidean geometry is self contradicting Phys1 2 3 5 3 5 hours ago Sunspots clearly demonstrate a cooling with depth as far as the sun is concerned Only math and denial keep that model alive Roche limit planets help moons coalesce due to their gravitational influence until they try to rip them apart due to gravitational influence Redshift proves Spacetime is expanding yet not all light is redshifted The CMB is a 13 75 billion year old light echo from an event that occurred due to impossible physics and the main evidence that it occurred is the echo The only way we can alter lights path is interaction with an EM field the only way the universe can do it is gravity

    Original URL path: http://phys.org/news/2016-02-black-holes-meetinside-cataclysms-gravitational.html (2016-02-13)
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