Navigation Links
Water's surface not all wet
Date:6/8/2011

as the frequency decreases, similar to the pull one feels when slowing down a child on a swing.

In the case of straddling molecules with one hydrogen in water, when compared to bonds below the surface, "the hydrogen bond is surprisingly only slightly weaker," according to Benderskii.

Likewise, the bond for the hydrogen atom sticking out of the water is similar in strength to bonds in the gas phase.

The researchers concluded that the change between air and water happens in the space of a single water molecule.

"You recover the bulk phase of water extremely quickly," Benderskii said.

While the transition happens in the uppermost layer of water molecules, the molecules involved change constantly. Even when they rise to the top layer, molecules for the most part are wholly submerged, spending only a quarter of their time straddling air and water.

The study raises the question of how exactly to define the air-water boundary.

If the straddling molecules constitute the boundary, it would be analogous to a wood fence where three of every four boards are missing except that since water molecules always are moving between submerged and straddling positions, the location of the fourth board would change millions of times per second.

If the boundary were the entire top layer of water molecules, the analogy would be a fence where one in four boards is sticking out at any one time.


'/>"/>

Contact: Carl Marziali
marziali@usc.edu
213-740-4751
University of Southern California
Source:Eurekalert

Page: 1 2

Related biology news :

1. Scientists achieve first tracking of salmon from headwaters in Rockies through Pacific to Alaska
2. These shells dont clam up: Innovative technique to record human impact on coastal waters
3. These shells dont clam up: Innovative technique to record human impact on coastal waters
4. Marine scientists to assess environment before offshore drilling begins in US arctic waters
5. EPA to study Puerto Rico waters and marine habitat
6. Troubled waters: Low Apalachicola River flow may hurt gulf fisheries
7. Study of agricultural watersheds and carbon losses
8. Glacial watersheds may contribute to oceanic food web
9. UCLA engineers develop faster method to detect bacterial contamination in coastal waters
10. New mathematical model helps biologists understand how coral dies in warming waters
11. Dirty waters
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/21/2014)... University of California, San Diego, have developed a program ... the activity of genes based on sequences of DNA. ... application to human embryonic cells in a paper published ... "All of our cells have the same blueprint, the ... Whitaker, lead author of the report. "Skin cells protect, ...
(Date:9/21/2014)... researchers has developed a protein therapy that disrupts the ... original tumor sites, travel through the blood stream and ... This process, known as metastasis, can cause cancer to ... patients who succumb to cancer fall prey to metastatic ... professor of bioengineering who describes a new therapeutic approach ...
(Date:9/19/2014)... of Oklahoma biology professor will study multifunctional and ... movements with a National Science Foundation grant in ... , Ari Berkowitz, professor in the Department of ... focus on the differences between the multifunctional and ... neurotransmitters they use and what connections they make. ...
Breaking Biology News(10 mins):Program predicts placement of chemical tags that control gene activity 2Stanford researchers create 'evolved' protein that may stop cancer from spreading 2Stanford researchers create 'evolved' protein that may stop cancer from spreading 3Stanford researchers create 'evolved' protein that may stop cancer from spreading 4
... to save a species in the 21st century? The specter ... as 35 percent, has some scientists and managers considering taking ... relocation (MR) is literally the physical relocation of endangered or ... and foreign geographical climes. It addresses the concern that climate ...
... at the National Institutes of Health have found that ... cell energy metabolism appear to increase the risk for ... the enzyme phosphodiesterase 11A (PDE11A), which helps regulate a ... studies by NIH researchers have linked genetic variations that ...
... greatly from our real-life partner, according to new research from ... France. The research found that our actual partners are of ... we would ideally choose. The study, which was ... PLoS ONE , found that most men and women express ...
Cached Biology News:Climate change forcing a 'move it or lose it' approach to species conservation? 2Climate change forcing a 'move it or lose it' approach to species conservation? 3Gene variations that alter key enzyme linked to prostate cancer 2Study shows real partners are no match for ideal mate 2
(Date:9/22/2014)... have developed a unique nanoscale device that for ... The discovery could have major implications for creating ... and communication. , The research paper by University ... Mo Li and his graduate student Huan Li ... the October issue of Nature Nanotechnology . ...
(Date:9/22/2014)... 2014 US demand to rise 3.9% annually ... is forecast to rise 3.9 percent per year to ... projected to increase 1.3 percent per year to 1.5 ... in construction expenditures will support demand for biocides in ... growth in consumer spending and manufacturing output will support ...
(Date:9/22/2014)... -- Research and Markets has announced the ... Industry Report 2014" report to their offering. ... Report 2014 is a professional and in-depth study on ... with a focus on the Chinese situation. ... including definitions, classifications, applications and industry chain structure. The ...
(Date:9/22/2014)... D.C (PRWEB) September 22, 2014 FierceBiotech ... top privately held biotechnology companies of 2014. FierceBiotech ... companies before selecting this year’s winners. Those selected ... biotechnology companies in the industry. , "It's ... new group of Fierce 15 companies," said Carroll. "This ...
Breaking Biology Technology:Engineers show light can play seesaw at the nanoscale 2US Biocides Market 2US Biocides Market 3Global and Chinese Microcrystalline Cellulose Industry Report 2014 2FierceBiotech Announces Annual “Fierce 15” Winners of 2014 2
... industry will face many serious issues over the next ... rigors of engineering better biofuels and bioproducts. But few ... the 20,000 convention visitors at BIO '06. , ... ,A walk-through in Chicago's massive McCormick Place demonstrates just ...
... and discovery. From medicine to manufacturing, some of the ... our state. Today, amid a revolution in biotechnology and ... ,From developing innovative new sources of renewable energy that ... oil to working to find cures to Parkinson's, Alzheimer's ...
... Chicago The biotechnology industry has a job to ... luncheon attended by thousands at the BIO Chicago conference. , ... infectious diseases, guard against pandemics, create crops that can feed ... such as ethanol, and confront global warming head on. , ...
Cached Biology Technology:My-oh, it's BIO! Where sales hype and science collide 2Making Wisconsin the biotechnology leader 2Making Wisconsin the biotechnology leader 3Clinton says world needs biofuels, GM crops, and more answers 2Clinton says world needs biofuels, GM crops, and more answers 3
Rabbit polyclonal to STUB1 ( Abpromise for all tested applications). entrezGeneID: 10273 SwissProtID: Q9UNE7...
... which pioneered the blending of thermostable DNA ... Expand Long Template PCR Systems, now introduces ... the first product of a family of ... combines Taq DNA Polymerase with a novel ...
... polymers) are prepared by ... the enzyme, polynucleotide phosphorylase, ... the appropriate, ribonucleoside diphosphate ... exception of catalog number ...
... stainless-steel shaker flask clips, purpose-designed to firmly ... All clips are equipped with a top ... include a bottom retainer spring, and silicon ... expensive glassware. Clips include the required ...
Biology Products: