Navigation Links
SLAC researchers reveal the dance of water
Date:8/11/2009

Menlo Park, Calif.Water is familiar to everyoneit shapes our bodies and our planet. But despite this abundance, the molecular structure of water has remained a mystery, with the substance exhibiting many strange properties that are still poorly understood. Recent work at the Department of Energy's SLAC National Accelerator Laboratory and several universities in Sweden and Japan, however, is shedding new light on water's molecular idiosyncrasies, offering insight into its strange bulk properties.

In all, water exhibits 66 known anomalies, including a strangely varying density, large heat capacity and high surface tension. Contrary to other "normal" liquids, which become denser as they get colder, water reaches its maximum density at about 4 Celsius. Above and below this temperature, water is less dense; this is why, for example, lakes freeze from the surface down. Water also has an unusually large capacity to store heat, which stabilizes the temperature of the oceans, and a high surface tension, which allows insects to walk on water, droplets to form and trees to transport water to great heights.

"Understanding these anomalies is very important because water is the ultimate basis for our existence: no water, no life," said SLAC scientist Anders Nilsson, who is leading the experimental efforts. "Our work helps explain these anomalies on the molecular level at temperatures which are relevant to life."

How the molecules arrange themselves in water's solid form, ice, was long ago established: the molecules form a tight "tetrahedral" lattice, with each molecule binding to four others. Discovering the molecular arrangement in liquid water, however, is proving to be much more complex. For over 100 years, this structure has been the subject of intense debate. The current textbook model holds that, since ice is made up of tetrahedral structures, liquid water should be similar, but less structured since heat creates disorder and breaks bond
'/>"/>

Contact: Melinda Lee
melinda.lee@slac.stanford.edu
650-926-8547
DOE/SLAC National Accelerator Laboratory
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Researchers identify proteins involved in new neurodegenerative syndrome
2. Texas researchers and educators head for Antarctica
3. MGH researchers describe new way to identify, evolve novel enzymes
4. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
5. U of MN researchers discover noninvasive diagnostic tool for brain diseases
6. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
7. Researchers discover new strategies for antibiotic resistance
8. Researchers find new taste in fruit flies: carbonated water
9. Binghamton University researchers investigate evolving malaria resistance
10. UIC researchers find promising new targets for antibiotics
11. Researchers develop simple method to create natural drug products
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
SLAC researchers reveal the dance of water
(Date:4/23/2014)... (Apr. 23, 2014) People who have had a ... restore neurological function. However, a study conducted in Taiwan, ... Cell Transplantation , but is currently freely available ... , has found that when one group of stroke ... injected directly into the brain and a similar group ...
(Date:4/23/2014)... energy landscape in the U.S., but in some ... energy industry, residents and agricultural interests over already-scarce ... water quality is a potential risk unless there ... the ACS journal Environmental Science & Technology ... out that a major criticism of extracting shale ...
(Date:4/23/2014)... cli-fi, is a newly coined term for novels and films ... from University of Copenhagen shows how these fictions serve as ... consequences of climate change and imagine other living conditions. ... changes in the atmosphere; it is also a cultural phenomenon ... read and the films we see. And there are so ...
Breaking Biology News(10 mins):Autologous stem cell therapy improves motor function in chronic stroke victims 2How to avoid water wars between 'fracking' industry and residents 2Fiction prepares us for a world changed by global warming 2Fiction prepares us for a world changed by global warming 3
... Researchers at the Swedish medical university Karolinska Institutet (KI) have ... parietal parts, to increase the understanding of the capacity of ... in the brain interact. One of the findings they have ... brain,s neuronal network that restricts the number of items we ...
... may one day help people who are not responding ... The Journal of Immunology . Scientists looking at ... to reduce the virus levels in the blood to ... called D-1mT alongside Anti-Retroviral Therapy (ART). Simian Immunodeficiency ...
... that its latest journal, Disease Models & Mechanisms ... MEDLINE. MEDLINE (http://www.pubmed.gov) is the premier bibliographic database of ... National Institutes of Health (NIH), MEDLINE contains over 16 million ... DMM has been recommended for inclusion by ...
Cached Biology News:Computer simulations explain the limitations of working memory 2Potential new HIV drug may help patients not responding to treatment 2Potential new HIV drug may help patients not responding to treatment 3Disease Models & Mechanisms -- selected for indexing in Medline 2
(Date:1/14/2014)... Jan. 14, 2014  3D Communications, a leading provider of strategic communications ... and media events in the United States ... Virginia Cox , JD, is returning to the firm,s ... re-joins 3D after more than two years of service as ...
(Date:1/14/2014)... , Jan. 14, 2014 The largest international ... medicinal plants and therapeutic derivatives thereof has endorsed ... and researchers about the challenges of adulterated herb ... ) The Society for Medicinal ...
(Date:1/14/2014)... In recent years, growing suspicion about the pharmaceutical ... and promotion has led to unprecedented levels of public ... about the insidious impact of commercialization of research, has ... the world’s biggest pharmas for illegal marketing activities, allegations ...
(Date:1/14/2014)... , Jan. 14, 2014   Kinaxis ®, provider of ... ) and sales and operations planning ( S&OP ) service, ... Biomanufacturing Summit , which will be held at the Hilton ... conference, join Kinaxis customer Elisabeth Kaszas , Director of ...
Breaking Biology Technology:Former FDA Associate Commissioner Returns To 3D Communications 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 3World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 4World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 5World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 6World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 7World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 8The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3Event Alert: Kinaxis Customer to Present at the Biomanufacturing Summit "Supply Chain: Improving Network Effectiveness" 2
... 2009 Earnings Guidance and Introduces Q1 2009 Guidance FRAZER, ... . (Nasdaq: CEPH ) today reported 2008 ... billion for 2007, exceeding the company,s previously issued guidance. ... year 2008 was $3.27. Excluding amortization expense and ...
... VOLC ), a leader in the development, ... of coronary and peripheral artery,disease, said today that it ... Growth Stock Conference on Wednesday, February 18. , ... and chief executive,officer, will begin at 9:30 a.m., Pacific ...
... Calif., Feb. 12 iZumi Bio, Inc., announced,today the ... and a,member of the company,s Board of Directors. ... Inc. which merged with Transcept Pharmaceuticals,Inc. in January 2009. ... , iZumi Bio is focused ...
Cached Biology Technology:Cephalon's New Product Launches Pace Record 2008 Sales 2Cephalon's New Product Launches Pace Record 2008 Sales 3Cephalon's New Product Launches Pace Record 2008 Sales 4Cephalon's New Product Launches Pace Record 2008 Sales 5Cephalon's New Product Launches Pace Record 2008 Sales 6Cephalon's New Product Launches Pace Record 2008 Sales 7Cephalon's New Product Launches Pace Record 2008 Sales 8Cephalon's New Product Launches Pace Record 2008 Sales 9Cephalon's New Product Launches Pace Record 2008 Sales 10Cephalon's New Product Launches Pace Record 2008 Sales 11Cephalon's New Product Launches Pace Record 2008 Sales 12Cephalon's New Product Launches Pace Record 2008 Sales 13Cephalon's New Product Launches Pace Record 2008 Sales 14Cephalon's New Product Launches Pace Record 2008 Sales 15Cephalon's New Product Launches Pace Record 2008 Sales 16Cephalon's New Product Launches Pace Record 2008 Sales 17Cephalon's New Product Launches Pace Record 2008 Sales 18Cephalon's New Product Launches Pace Record 2008 Sales 19Cephalon's New Product Launches Pace Record 2008 Sales 20Cephalon's New Product Launches Pace Record 2008 Sales 21Volcano Corporation Presentation at Roth Capital Partners Conference to Be Webcast 2iZumi Bio, Inc., Appoints John Walker as Chief Executive Officer 2
... Dyad thermal cycler is a flexible ... chassis accommodates a variety of interchangeable ... hold different types and numbers of ... with point-and-click navigation. Peltier heat pumps, ...
For demonstration of Helicobacter pylori...
... Disruption of the mitochondrial transmembrane ... earliest intracellular events that occur ... MitoLight Apoptosis Detection Kit utilizes ... MitoLight, as a mitochondrial activity ...
The PDS-1000 He Hepta system includes the PDS-1000 He biolistic system and the Hepta adaptor....
Biology Products: