News tagged with oxygen molecule
Avocado oil: The 'olive oil of the Americas'?
Atmospheric oxygen facilitated the evolution and complexity of terrestrial organisms, including human beings, because it allowed nutrients to be used more efficiently by those organisms, which in turn were able to generate ...
Apr 23, 2012 |
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Understanding photosynthesis: How plants use catalytic reactions to split oxygen from water
Splitting hydrogen and oxygen from water using conventional electrolysis techniques requires considerable amounts of electrical energy. But green plants produce oxygen from water efficiently using a catalytic ...
Apr 02, 2012 |
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Far-out photosynthesis
Photosynthesis maintains Earth's habitability for life as we know it, and shapes the way we search for habitable worlds around distant stars. Scientists have discovered a microbe that can use low-energy light ...
Mar 16, 2012 |
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First step taken to image ultra-fast movements in chemical reactions
A team of international researchers have fired ultra-fast shots of light at oxygen, nitrogen and carbon monoxide molecules as part of a development aimed at mapping the astonishingly quick movements of atoms within molecules, ...
Mar 15, 2012 |
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New nanoglue is thin and supersticky
Engineers at the University of California, Davis, have invented a superthin "nanoglue" that could be used in new-generation microchip fabrication.
Nanotechnology / Nanomaterials
Mar 05, 2012 |
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Oxygen molecule survives to enormously high pressures
Using computer simulations, a Ruhr-University Bochum (Germany) researcher has shown that the oxygen molecule (O2) is stable up to pressures of 1.9 terapascal, which is about nineteen million times higher than atmosphere pressure. ...
Jan 30, 2012 |
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Physicists find charge separation in a molecule consisting of two identical atoms
Physicists from the University of Stuttgart show the first experimental proof of a molecule consisting of two identical atoms that exhibits a permanent electric dipole moment. This observation contradicts ...
Nov 25, 2011 |
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Iodate refuses to intimidate
Like a bull in a china shop, a massive, iodine-based ion called iodate should disrupt the surrounding water molecules until it is forcibly expelled. However, it doesn't. This disconnect between the molecule's ...
Nov 08, 2011 |
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Highly efficient oxygen catalyst found
A team of researchers at MIT has found one of the most effective catalysts ever discovered for splitting oxygen atoms from water molecules — a key reaction for advanced energy-storage systems, including ...
Oct 28, 2011 |
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Venus has an ozone layer too: probe finds
(PhysOrg.com) -- ESA's Venus Express spacecraft has discovered an ozone layer high in the atmosphere of Venus. Comparing its properties with those of the equivalent layers on Earth and Mars will help astronomers ...
Space & Earth / Space Exploration
Oct 06, 2011 |
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Cellular metabolism self-adapts to protect against free radicals
Oxygen-consuming organisms obtain energy through cellular respiration, which is the transformation of carbohydrates and oxygen into carbon dioxide and water. This process also produces toxic oxygen radicals which must be ...
Sep 07, 2011 |
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Novel alloy could produce hydrogen fuel from sunlight
Scientists from the University of Kentucky and the University of Louisville have determined that an inexpensive semiconductor material can be "tweaked" to generate hydrogen from water using sunlight.
Aug 30, 2011 |
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Breathing new life into Earth: New research shows evidence of early oxygen on our planet
Today, oxygen takes up a hefty portion of Earth's atmosphere: Life-sustaining O2 molecules make up 21 percent of the air we breathe. However, very early in Earth's history, O2 was a rare — if not complet ...
Space & Earth / Earth Sciences
Aug 16, 2011 |
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University of Virginia researchers uncover new catalysis site
Mention catalyst and most people will think of the catalytic converter, an emissions control device in the exhaust system of automobiles that reduces pollution.
Aug 05, 2011 |
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Oxygen molecules found in deep space
ESA's Herschel space observatory has found molecules of oxygen in a nearby star-forming cloud. This is the first undisputed detection of oxygen molecules in space. It concludes a long search but also leaves ...
Aug 01, 2011 |
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