News tagged with water molecules

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urine

Producing hydrogen from urine

Chemistry / Analytical Chemistry

created Jul 03, 2009 | popularity 4.6 / 5 (52) | comments 20

(PhysOrg.com) -- You do two things at motorway services: fill up one tank and empty another. US chemists have combined refuelling your car and relieving yourself by creating a new catalyst that can extract ...


Most Distant Water in the Universe Found

Most Distant Water in the Universe Found

Space & Earth / Astronomy

created Dec 17, 2008 | popularity 4.8 / 5 (25) | comments 3

(PhysOrg.com) -- Astronomers have found the most distant water yet seen in the Universe, in a galaxy more than 11 billion light-years from Earth. Previously, the most distant water had been seen in a galaxy ...


Sunlight turns carbon dioxide to methane

Nanotechnology / Nanomaterials

created Mar 05, 2009 | popularity 4.8 / 5 (15) | comments 6

Dual catalysts may be the key to efficiently turning carbon dioxide and water vapor into methane and other hydrocarbons using titania nanotubes and solar power, according to Penn State researchers.


Rethinking Brownian motion with the 'Emperor's New Clothes'

Physics / Soft Matter

created Jul 27, 2009 | popularity 4.6 / 5 (15) | comments 10

In the classic fairy tale, "The Emperor's New Clothes," Hans Christian Andersen uses the eyes of a child to challenge conventional wisdom and help others to see more clearly. In similar fashion, researchers at the University ...


ice water

Scientists Observe Liquid Water Below Freezing

Chemistry / Materials Science

created Jun 24, 2009 | popularity 4.2 / 5 (14) | comments 8

(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 ...


Physicists make crystal/liquid interface visible for first time

Physicists make crystal/liquid interface visible for first time

Physics / Condensed Matter

created Aug 11, 2009 | popularity 4.2 / 5 (11) | comments 13

"Imagine you're a water molecule in a glass of ice water, and you're floating right on the boundary of the ice and the water," proposes Emory University physicist Eric Weeks. "So how do you know if you're ...


Accidental discovery has potential for new applications in packaging

Nanotechnology / Nanomaterials

created Feb 06, 2009 | popularity 3.9 / 5 (11) | comments 2

A recent discovery at Case Western Reserve University may help keep food and drugs safer and fresher longer and electronic equipment dryer and more secure than ever before - all at a lower cost.


Frost Accumulates on 'Snow White' Trench

Phoenix Site on Mars May be in Dry Climate Cycle Phase

Space & Earth / Space Exploration

created Dec 15, 2008 | popularity 4.4 / 5 (8) | comments 0

(PhysOrg.com) -- The Martian arctic soil that NASA's Phoenix Mars Lander dug into this year is very cold and very dry. However, when long-term climate cycles make the site warmer, the soil may get moist enough ...


Dancing 'adatoms' help chemists understand how water molecules split

Physics / Condensed Matter

created Mar 16, 2009 | popularity 4.4 / 5 (8) | comments 0

Single oxygen atoms dancing on a metal oxide slab, glowing brighter here and dimmer there, have helped chemists better understand how water splits into oxygen and hydrogen. In the process, the scientists have visualized a ...


HCl dissociation

Scientists Create Smallest Ever Droplet of Acid, Solve Ozone Puzzle

Chemistry / Analytical Chemistry

created Jun 25, 2009 | popularity 4.9 / 5 (7) | comments 1

(PhysOrg.com) -- In its atomic form, chlorine can destroy vast quantities of ozone. But exactly how chlorine is created in the ultracold conditions of the stratosphere has puzzled scientists. Now, a team of ...


Toward home-brewed electricity with 'personalized solar energy'

Toward home-brewed electricity with 'personalized solar energy'

Chemistry / Materials Science

created Nov 04, 2009 | popularity 3.4 / 5 (10) | comments 5

New scientific discoveries are moving society toward the era of "personalized solar energy," in which the focus of electricity production shifts from huge central generating stations to individuals in their ...


Simulations help explain fast water transport in nanotubes

Simulations help explain fast water transport in nanotubes

Nanotechnology / Nanophysics

created Sep 16, 2008 | popularity 4.4 / 5 (7) | comments 0

(PhysOrg.com) -- By discovering the physical mechanism behind the rapid transport of water in carbon nanotubes, scientists at the University of Illinois have moved a step closer to ultra-efficient, next-generation ...


Lovely ‘snowfakes’ mimic nature, advance science

Other Sciences / Mathematics

created Feb 24, 2009 | popularity 5 / 5 (6) | comments 0

(PhysOrg.com) -- Exquisitely detailed and beautifully symmetrical, the snowflakes that David Griffeath makes are icy jewels of art.


LCROSS

Hubble observes LCROSS impact: Preliminary analysis shows no clear evidence for hydroxyl

Space & Earth / Space Exploration

created Oct 12, 2009 | popularity 4.7 / 5 (6) | comments 1

(PhysOrg.com) -- NASA's Hubble Space Telescope has made a series of observations immediately preceding and following the Lunar Crater Observation and Sensing Satellite (LCROSS) Centaur rocket stage and shepherding ...


Forget the freezer: Research suggests novel way to control water behavior

Physics / General Physics

created Feb 20, 2009 | popularity 3.4 / 5 (7) | comments 4

Researchers may be able to "freeze" water into a solid, not by cooling but by confining it to narrow spaces less than one-millionth of a millimeter wide, according to new results from an interdisciplinary team of scientists ...