http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- Below 0 °C, water turns to ice. But beyond that, or below about -75 °C, the ice may turn back into liquid water. While scientists have previously predicted this phase transition with computer simulations, recent experiments may have finally demonstrated the existence of this ultra-cold water. http://www.physorg.com/news165084657.html Chemistry Wed, 24 Jun 2009 17:51:25 EST news165084657 The most abundant material on Earth exhibits some unusual chemical properties when placed under extreme conditions. http://www.physorg.com/news156779157.html Chemistry Fri, 20 Mar 2009 14:46:43 EST news156779157 An international team of scientists have discovered a transparent form of the element sodium (Na). The team, led by Artem Oganov, Professor of Theoretical Crystallography at Stony Brook University, and Yanming Ma, the lead author and professor of physics at Jilin University in China, was able to demonstrate that sodium defies normal physical expectations by going transparent under pressure. The results are published in the March 12 edition of the journal Nature. http://www.physorg.com/news156104532.html Physics Thu, 12 Mar 2009 19:22:47 EST news156104532 (PhysOrg.com) -- Ever since the Bronze Age, humans have experimented with combining different metals to create alloys with properties superior to either metal alone. But not all metals readily form alloys - for some pairs of elements the atoms are too dissimilar. Now researchers in an international team have discovered that previously impossible alloys can be created by subjecting atoms to high pressure―opening up possibilities for new materials in the future. http://www.physorg.com/news155994105.html Physics Wed, 11 Mar 2009 12:42:19 EST news155994105 (PhysOrg.com) -- Traditionally, magnetism and superconductivity don't mix. For more than 20 years, the only known superconductors that worked at so-called "high" temperatures (above 30 K, or about -406 degrees Fahrenheit) were almost all based on copper. Materials with strong magnetism, scientists thought, would disrupt the pairing of electrons that is key to achieving the frictionless flow of superconductivity. So when a group of researchers recently found high-temperature superconductivity present in a class of iron-based materials, their discovery shocked and excited the scientific community. http://www.physorg.com/news155494328.html Physics Thu, 05 Mar 2009 16:52:46 EST news155494328 What has been impossible has now been shown to be possible - an alloy between two incompatible elements. The findings are being published in this week's edition of Proceedings of the National Academy of Science, USA. http://www.physorg.com/news154868131.html Physics Thu, 26 Feb 2009 10:56:12 EST news154868131 Oxygen, the third most abundant element in the cosmos and essential to life on Earth, changes its forms dramatically under pressure transforming to a solid with spectacular colors. Eventually it becomes metallic and a superconductor. The underlying mechanism for these remarkable phenomena has been fascinating to scientists for decades; especially the origin of the recently discovered molecular cluster (O2)4 in the dense solid, red oxygen phase. http://www.physorg.com/news137088716.html Physics Mon, 04 Aug 2008 17:11:56 EST news137088716