Gas

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In physics, a gas is a state of matter, consisting of a collection of particles (molecules, atoms, ions, electrons, etc.) without a definite shape or volume that are in more or less random motion.

For more information about Gas, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.


News tagged with gas

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Climate trouble may be bubbling up in far north (AP)

Climate trouble may be bubbling up in far north

Space & Earth / Environment

created Aug 30, 2009 | popularity 4.7 / 5 (77) | comments 27

(AP) -- Only a squawk from a sandhill crane broke the Arctic silence - and a low gurgle of bubbles, a watery whisper of trouble repeated in countless spots around the polar world.


Arctic at warmest levels in 2,000 years or more

Arctic at warmest levels in 2,000 years or more

Space & Earth / Earth Sciences

created Sep 03, 2009 | popularity 4.3 / 5 (64) | comments 25

Arctic temperatures in the 1990s reached their warmest level of any decade in at least 2,000 years, new research indicates. The study, which incorporates geologic records and computer simulations, provides ...


Hackers leak e-mails, stoke climate debate

Technology / Internet

created Nov 21, 2009 | popularity 3.6 / 5 (74) | comments 45

(AP) -- Computer hackers have broken into a server at a well-respected climate change research center in Britain and posted hundreds of private e-mails and documents online - stoking debate over whether some scientists have ...


Last time carbon dioxide levels were this high: 15 million years ago, scientists report

Last time carbon dioxide levels were this high: 15 million years ago, scientists report

Space & Earth / Earth Sciences

created Oct 08, 2009 | popularity 3.6 / 5 (63) | comments 137

You would have to go back at least 15 million years to find carbon dioxide levels on Earth as high as they are today, a UCLA scientist and colleagues report Oct. 8 in the online edition of the journal Science.


Researchers engineer bacteria to turn carbon dioxide into liquid fuel

Researchers engineer bacteria to turn carbon dioxide into liquid fuel

Biology / Biotechnology

created Dec 10, 2009 | popularity 4.8 / 5 (44) | comments 25

(PhysOrg.com) -- The genetically modified cyanobacterium consumes carbon dioxide and produces the liquid fuel isobutanol by using energy from sunlight.


Controversial new climate change results

Controversial new climate change results

Space & Earth / Environment

created Nov 10, 2009 | popularity 4.1 / 5 (49) | comments 131

(PhysOrg.com) -- New data show that the balance between the airborne and the absorbed fraction of CO2 has stayed approximately constant since 1850, despite emissions of CO2 having risen from about 2 billion ...


H1N1 Virus Can Be Killed by Acidic Ozone Water

H1N1 Virus Can Be Killed by Acidic Ozone Water

Chemistry / Biochemistry

created Nov 09, 2009 | popularity 4.5 / 5 (44) | comments 16 feature

(PhysOrg.com) -- Scientists have found that acidic ozone water can deactivate H1N1 viruses very effectively, offering a promising disinfectant for the millions of people trying to avoid the disease. Acidic ...


The shore of Deception Island in Antarctica, in 2008

Antarctic ice loss vaster, faster than thought: study

Space & Earth / Earth Sciences

created Nov 22, 2009 | popularity 3.8 / 5 (52) | comments 45

The East Antarctic icesheet, once seen as largely unaffected by global warming, has lost billions of tonnes of ice since 2006 and could boost sea levels in the future, according to a new study.


New hydrogen-storage method discovered

New hydrogen-storage method discovered

Chemistry / Materials Science

created Nov 22, 2009 | popularity 4.3 / 5 (43) | comments 15

Scientists at the Carnegie Institution have found for the first time that high pressure can be used to make a unique hydrogen-storage material. The discovery paves the way for an entirely new way to approach ...


Science not faked, but not pretty (AP)

Science not faked, but not pretty

Space & Earth / Environment

created Dec 12, 2009 | popularity 3 / 5 (57) | comments 93

(AP) -- E-mails stolen from climate scientists show they stonewalled skeptics and discussed hiding data - but the messages don't support claims that the science of global warming was faked, according to an ...


Mars

Life on Mars theory boosted by new methane study

Space & Earth / Space Exploration

created Dec 08, 2009 | popularity 4.9 / 5 (31) | comments 11

Scientists have ruled out the possibility that methane is delivered to Mars by meteorites, raising fresh hopes that the gas might be generated by life on the red planet, in research published tomorrow in Earth an ...


Global warming likely to be amplified by slow changes to Earth systems

Global warming likely to be amplified by slow changes to Earth systems

Space & Earth / Earth Sciences

created Dec 20, 2009 | popularity 2.8 / 5 (46) | comments 57

Researchers studying a period of high carbon dioxide levels and warm climate several million years ago have concluded that slow changes such as melting ice sheets amplified the initial warming caused by greenhouse ...


Arctic ice

Study: Earth's polar ice sheets vulnerable to even moderate global warming

Space & Earth / Earth Sciences

created Dec 16, 2009 | popularity 2.8 / 5 (46) | comments 42

A new analysis of the geological record of the Earth's sea level, carried out by scientists at Princeton and Harvard universities and published in the Dec. 16 issue of Nature, employs a novel statistical approa ...


Avatar's moon Pandora could be real

Avatar's moon Pandora could be real

Space & Earth / Astronomy

created Dec 17, 2009 | popularity 4.3 / 5 (27) | comments 10

In the new blockbuster Avatar, humans visit the habitable - and inhabited - alien moon called Pandora. Life-bearing moons like Pandora or the Star Wars forest moon of Endor are a staple of science fiction. ...


Previously Unknown Volcanic Eruption Helped Trigger Cold Decade

Previously Unknown Volcanic Eruption Helped Trigger Cold Decade

Space & Earth / Earth Sciences

created Oct 29, 2009 | popularity 4.3 / 5 (27) | comments 9

(PhysOrg.com) -- A team of chemists from the U.S. and France has found compelling evidence of a previously undocumented large volcanic eruption that occurred exactly 200 years ago, in 1809.