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  • Phys.org - ice
    09 2016 in Earth Sciences 22 0 Antarctic ice safety band at risk Antarctica is surrounded by huge ice shelves New research using ice velocity data from satellites such as ESA s heritage Envisat has revealed that there is a critical point where these shelves act as a safety band holding Feb 09 2016 in Environment 21 0 New Little Ice Age coincides with fall of Eastern Roman Empire and growth of Arab Empire Researchers from the international Past Global Changes PAGES project write in the journal Nature Geoscience that they have identified an unprecedented long lasting cooling in the northern hemisphere 1500 years ago The Feb 08 2016 in Earth Sciences 218 2 Pluto s mysterious floating hills The nitrogen ice glaciers on Pluto appear to carry an intriguing cargo numerous isolated hills that may be fragments of water ice from Pluto s surrounding uplands These hills individually measure one to several miles or Feb 04 2016 in Space Exploration 1558 2 Scientists map movement of Greenland Ice during past 9 000 years Scientists have created the first map that shows how the Greenland Ice Sheet has moved over time revealing that ice in the interior is moving more slowly toward the edges than it has on average during the past 9 000 years Feb 04 2016 in Earth Sciences 65 0 Russian scientists blow up ice to test their theories Supposing that a week ago the air temperature was about zero what is the best safest method to blow up ice on rivers What is the best way to plant explosives in conditions of low temperature when spring ice will not melt Feb 04 2016 in Earth Sciences 5 0 In the Southern Ocean a carbon dioxide mystery comes clear Twenty thousand years ago when humans were still nomadic hunters and gatherers low concentrations of carbon dioxide in the atmosphere allowed the earth to fall into the grip of an ice age But despite decades of research Feb 03 2016 in Earth Sciences 1109 9 1 2 3 4 5 6 7 8 Next Ice Ice is a solid phase usually crystalline of a non metallic substance that is liquid or gas at room temperature such as carbon dioxide ice dry ice ammonia ice or methane ice However the predominant use of the term ice is for water ice technically restricted to one of the 15 known crystalline phases of water In non scientific contexts the term usually means ice Ih which is known to be the most abundant of these solid phases It can appear transparent or opaque bluish white colour depending on the presence of impurities or air inclusions The addition of other materials such as soil may further alter the appearance The most common phase transition to ice Ih occurs when liquid water is cooled below 0 C 273 15K 32 F at standard atmospheric pressure It can also deposit from vapour with no intervening liquid phase such as in the formation of frost Ice

    Original URL path: http://phys.org/tags/ice/ (2016-02-13)
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  • Phys.org - water molecules
    nanoflasks which have a span of several nanometers or millionths of a millimeter can accelerate Jan 07 2016 in Nanomaterials 20 0 Physicists come up with a way to make cleaner fuel cells An international group of scientists from Russia France and Germany have developed ion exchange synthetic membranes based on amphiphilic compounds that are able to convert the energy of chemical reactions into electrical Jan 01 2016 in Materials Science 56 0 Pole dancing water molecules How water learns to dance Perovskites are materials used in batteries fuel cells and electronic components and occur in nature as minerals Despite their important role in technology little is known about the reactivity of their surfaces Professor Dec 21 2015 in Materials Science 944 0 A molecular light switch Just add water A bit of stray moisture during an experiment tipped off scientists about the strange behavior of a complex oxide material they were studying shedding light on its potential for improving chemical sensors computing and Dec 16 2015 in Nanophysics 871 1 Highly efficient nature inspired membrane could potentially lower cost of water purification by 30 per cent The growing demand for potable water calls for low energy and cost effective methods for water purification Inspired by the natural water purification systems of the roots of the mangrove plant and the human kidney a team Dec 09 2015 in Materials Science 34 0 Cooking with chloraminated water and salt could create toxic molecules Cooking with chloraminated water could put potentially harmful toxins in your food according to a new study published in Water Research The study reveals several molecules that are almost completely new to researchers Nov 24 2015 in Biochemistry 396 8 Graphene paper able to behave like animated origami w video Phys org A team of researchers with Donghua

    Original URL path: http://phys.org/tags/water+molecules/ (2016-02-13)
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  • Scientists create one-dimensional ferroelectric ice
    an important factor in shaping the Earth Among water s unique properties are that it expands when it freezes UBC underwater robot to explore Antarctic ice w Video October 13 2010 Researchers at the University of British Columbia are deploying an underwater robot to survey ice covered ocean in Antarctica from October 17 through November 12 Recommended for you Physicists create first photonic Maxwell s demon February 12 2016 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 Most precise measurement of reactor antineutrino spectrum reveals intriguing surprise February 12 2016 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 Einstein s waves a 100 year odyssey February 12 2016 When Albert Einstein forged the bedrock theory of modern physics 100 years ago he had no computer no internet no printer ballpoint pens and pocket calculators did not exist and few homes had telephones Engineers develop new flat ultralight lens that could change how cameras are designed February 12 2016 Imagine digital cameras or smartphones without the bulky lenses or eyeglasses with lenses that are paper thin New imaging system uses an open ended bundle of optical fibers no lenses protective housing needed February 12 2016 Researchers at the MIT Media Lab have developed a new imaging device that consists of a loose bundle of optical fibers with no need for lenses or a protective housing Announcement Thursday on Einstein s gravitational waves February 8 2016 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 15 comments 2 5 Adjust slider to filter visible comments by rank Display comments newest first dansmithillustration 5 5 2 Feb 25 2011 This is so reminiscent of the concept of ice nine from the Kurt Vonnegut novel Cats Cradle Check it out jjoensuu 5 5 1 Feb 25 2011 hmmm so I guess it is also possible to make ice in which the magnetic moment is aligned spin ice zslewis91 Feb 25 2011 This comment has been removed by a moderator Skultch 3 5 1 Feb 25 2011 zslewis91 and dansmithillustration From wikipedia Ice IX A tetragonal phase Formed gradually from ice III by cooling it from 208 K to 165 K stable below 140 K and pressures between 200 MPa and 400 MPa It has density of 1 16 g cm3 slightly higher than ordinary ice Firecat not rated yet Feb 25 2011 The Ice IX phase does exists but is not the same IceIX in the movies Cave Man not rated yet Feb 27 2011 movies hes talking about a book and a good one at that read something

    Original URL path: http://phys.org/news/2011-02-scientists-one-dimensional-ferroelectric-ice.html (2016-02-13)
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  • Phys.org - University of Nebraska-Lincoln
    change Does evolution really trundle along like Darwin s famous Galapagos tortoise And do the populations undergoing this evolution really grow and decline with the speed of a hare Feb 04 2016 in Evolution 72 0 Researchers identify target of disease causing plant pathogens A new study from a University of Nebraska Lincoln research team led by plant pathologist Jim Alfano found that a bacterial plant pathogen suppresses a plant s immune system through the action of a protein called HopE1 Jan 27 2016 in Biotechnology 85 1 De icing concrete could improve roadway safety guard against corporate espionage A 200 square foot slab of seemingly ordinary concrete sits just outside the Peter Kiewit Institute as snowflakes begin parachuting toward Omaha on a frigid afternoon in late December Jan 22 2016 in Engineering 1915 0 Team harnesses intense X ray beam observes unusual phenomenon for the first time Using an enormous X ray laser one of only two such machines on Earth University of Nebraska Lincoln physicist Matthias Fuchs and scientists from around the world beat formidable odds to observe one of the most fundamental Aug 31 2015 in General Physics 1213 3 Wind turbine system recycles spillage to improve energy efficiency A new prototype from the University of Nebraska Lincoln s Jie Cheng could give a second wind to turbines that currently waste Mother Nature s strongest breaths Sep 17 2015 in Energy Green Tech 403 19 Mutational hot spot leads to adaptation in high altitude birds New research led by the University of Nebraska Lincoln and the University of New Mexico has pinpointed changes in a single mutation prone gene site that ultimately allow wrens to breathe easy in the rarefied air of the Andes Oct 14 2015 in Evolution 34 20 Two major US aquifers contaminated by

    Original URL path: http://phys.org/partners/university-of-nebraska-lincoln/ (2016-02-13)
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  • A new form of frozen water? Scientists reveal new ice with record-low density
    Nebraska Ice that contracts rather than expands when frozen under certain conditions Zeng s newest study which was co led by Dalian University of Technology s Jijun Zhao used a computational algorithm and molecular simulation to determine the ranges of extreme pressure and temperature under which water would freeze into the predicted configuration That configuration takes the form of a clathrate essentially a series of water molecules that form an interlocking cage like structure Researchers from left Chongqin Zhu Yingying Huang and Xiao Cheng Zeng co authored a study that has predicted the existence of a new form of ice Credit Craig Chandler University Communications University of Nebraska Lincoln It was long believed that these cages could maintain their structural integrity only when housing guest molecules such as methane which fills an abundance of natural clathrates found on the ocean floor and in permafrost Like the European team before them however Zeng and his colleagues have calculated that their clathrate would retain its stability even after its guest molecules have been evicted Actually synthesizing the clathrate will take some effort Based on the team s calculations the new ice will form only when water molecules are placed inside an enclosed space that is subjected to ultra high outwardly expanding pressure Just how much At minus 10 Fahrenheit the enclosure would need to be surrounded by expansion pressure about four times greater than what is found at the Pacific Ocean s deepest trench At minus 460 that pressure would need to be even greater roughly the same amount experienced by a person shouldering 300 jumbo jets at sea level The guest molecules would then need to be extracted via a vacuuming process pioneered by the European team which Zeng credited with inspiring his own group to conduct the new study Yet

    Original URL path: http://phys.org/print374527847.html (2016-02-13)
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    Original URL path: /pdf374527847.pdf (2016-02-13)


  • 'Nebraska Ice' leads to three more discoveries
    Explore further Alaskan drilling will assess gas hydrate Journal reference Nature Science Nature Communications Proceedings of the National Academy of Sciences Provided by University of Nebraska Lincoln 0 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 Alaskan drilling will assess gas hydrate February 20 2007 Drilling has started on an Alaskan North Slope well to assess the United States largest potential fossil energy resource gas hydrate It s raining pentagons March 8 2009 This week s Nature Materials 09 March 2009 reveals how an international team of scientists led by researchers at the London Centre for Nanotechnology LCN at UCL have discovered a novel one dimensional ice chain structure Research gives clues for self cleaning materials water striding robots May 4 2009 Self cleaning walls counter tops fabrics even micro robots that can walk on water all those things and more could be closer to reality because of research recently completed by scientists at the University of Nebraska Lincoln 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 Scientists first to mimic nature s vital potassium ion channel July 18 2012 Phys org An international team of scientists including chemist Xiao Cheng Zeng of the University of Nebraska Lincoln has created what is in effect a nanoscale sieve that is very selective in what it will allow to pass Large methane reservoirs suggested beneath Antarctic ice sheet August 29 2012 The Antarctic Ice Sheet could be an overlooked but important source of methane a potent greenhouse gas according to a report in the August 30 issue of Nature by an international team of scientists Recommended for you A new form of frozen water Scientists reveal new ice with record low density February 12 2016 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 New experimental test detects signs of Lyme disease near time of infection February

    Original URL path: http://phys.org/news/2012-12-nebraska-ice-discoveries.html (2016-02-13)
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  • New material could help with carbon storage
    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 Recyclable or More Cost Effective Dual Injector Chamber Feb 09 2016 Using ferromagnetism in reinforced concrete Feb 09 2016 Electrically conductive and Thermally insulating materal Feb 09 2016 Use Raman microscope to measure quantum yield Feb 06 2016 Will ferromagnetic dust retain magnetism in molten aluminum Feb 06 2016 Using the Colburn Equation Feb 02 2016 More from Materials and Chemical Engineering Related Stories Carbon dioxide forms polymeric materials under high pressure March 25 2009 Carbon dioxide is a molecular gas at ambient conditions and an important consitituent of the Earth s atmosphere It is also a likely component in the Earth s mantle and it plays an important role in the life cycle But 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 Evaluating the seismic risk of mineral carbon sequestration March 15 2013 Geologic carbon sequestration in which carbon is captured and stored underground has been proposed as one way to mitigate the climatic effects of carbon dioxide emissions One method of geologic carbon sequestration is New framework from boron and silicon could smooth the way to higher capacities for lithium ion batteries June 6 2013 Laptops could work longer and electric cars could drive farther if it were possible to further increase the capacity of their lithium ion batteries The electrode material has a decisive influence on a battery s capacity Carbon dioxide breathing phenomenon found in clay minerals December 17 2013 Japanese researchers have discovered a new phenomenon whereby carbonate ions CO32 in a clay mineral called hydrotalcite are repeatedly exchanged with carbon dioxide CO2 in the air quickly over several days as if Wonder material silicene has suicidal tendencies January 14 2014 The semiconductor industry of the future had high expectations of the new material silicene which shares a lot of similarities with the wonder material graphene However researchers of the MESA Research Institute of Recommended for you Scientists create ultrathin semiconductor heterostructures for new technologies February 12 2016 Heterostructures formed by different three dimensional semiconductors form the foundation for modern electronic and photonic devices Now University of Washington scientists have successfully combined two different ultrathin New nanotechnology detects biomarkers of cancer February 12 2016 Researchers at Wake Forest Baptist Medical Center have developed a new technology to detect disease biomarkers in the form of nucleic acids the building blocks of all living organisms Scientists discover electrons moving like honey in graphene February 12 2016 Electrons which act like slow pouring honey have been observed for the first time in

    Original URL path: http://phys.org/news/2014-02-material-carbon-storage.html (2016-02-13)
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