
Strange and perfect liquids
Date: Monday, April 18, 2005 @ 22:24:52 UTC Topic: Science
EVIDENCE SUGGESTS A POSSIBLE NEW PHASE OF ICE, April 18
Researchers at the National Synchrotron Radiation Research Center (NSRRC) announced that they have obtained spectroscopic evidence suggesting that a possible new phase of ice may exist at temperatures between 4 K to 50 K, under high pressure.
This discovery was made while a team of researchers led by Dr. Yong Q. Cai were investigating the ordering of hydrogen bonds in H2O under high pressure and at extremely low temperatures. The team confirmed the density functional theory (DFT) calculations under these conditions which correctly account for the pre-edge feature of ice. However, quite unexpectedly they also obtained data indicating substantial spectral changes from ice IX, suggesting a significant change of the H2O framework in this P-T regime. In short, the exciting prospect of the formation of a possible new ice phase.
Full story at http://www.physorg.com/news3770.html
SCIENTISTS SERVE UP 'PERFECT' LIQUID, April 18
New state of matter more remarkable than predicted -- raising many new questions
The four detector groups conducting research at the Relativistic Heavy Ion Collider (RHIC) -- a giant atom "smasher" located at the U.S. Department of Energy's Brookhaven National Laboratory -- say they've created a new state of hot, dense matter out of the quarks and gluons that are the basic particles of atomic nuclei, but it is a state quite different and even more remarkable than had been predicted. In peer-reviewed papers summarizing the first three years of RHIC findings, the scientists say that instead of behaving like a gas of free quarks and gluons, as was expected, the matter created in RHIC's heavy ion collisions appears to be more like a liquid.
Full story at http://www.physorg.com/news3758.html
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