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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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 4.7 / 5 (38) | comments 21

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


Mars

Life on Mars theory boosted by new methane study

Space & Earth / Space Exploration

created Dec 08, 2009 | popularity 4.9 / 5 (28) | 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 ...


Lasers used to make first boron-nitride nanotube yarn

Lasers used to make first boron-nitride nanotube yarn (w/ Video)

Nanotechnology / Nanomaterials

created Dec 02, 2009 | popularity 4.8 / 5 (14) | comments 2

(PhysOrg.com) -- Researchers have used lasers to create the first practical macroscopic yarns from boron nitride fibers, opening the door for an array of applications, from radiation-shielded spacecraft to ...


Researchers create 'synthetic magnetic fields' for neutral atoms

Researchers create 'synthetic magnetic fields' for neutral atoms

Physics / Quantum Physics

created Dec 02, 2009 | popularity 4.9 / 5 (15) | comments 2

(PhysOrg.com) -- Achieving an important new capability in ultracold atomic gases, researchers at the Joint Quantum Institute, a collaboration of the National Institute of Standards and Technology and the University ...


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 ...


Hackers leak e-mails, stoke climate debate

Technology / Internet

created Nov 21, 2009 | popularity 3.5 / 5 (73) | comments 43

(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 ...


Mysteriously warm times in Antarctica

Mysteriously warm times in Antarctica

Space & Earth / Earth Sciences

created Nov 18, 2009 | popularity 4.2 / 5 (26) | comments 31

(PhysOrg.com) -- A new study of Antarctica's past climate reveals that temperatures during the warm periods between ice ages (interglacials) may have been higher than previously thought. The latest analysis ...


Advanced nuclear fuel sets global performance record

Advanced nuclear fuel sets global performance record

Technology / Energy

created Nov 17, 2009 | popularity 4.5 / 5 (21) | comments 1

(PhysOrg.com) -- Idaho National Laboratory scientists have set a new world record with next-generation particle fuel for use in high temperature gas reactors (HTGRs).


Close-up movie shows hidden details in the birth of super-suns

Close-up movie shows hidden details in the birth of super-suns (w/ Video)

Space & Earth / Astronomy

created Nov 16, 2009 | popularity 4.8 / 5 (10) | comments 1

(PhysOrg.com) -- The constellation of Orion is a hotbed of massive star formation, most prominently in the Great Nebula that sits in Orion's sword. The glowing gas of the Nebula is powered by a group of young ...


Absorbing Hydrogen Fluoride Gas to Enhance Crystal Growth

Absorbing Hydrogen Fluoride Gas to Enhance Crystal Growth

Physics / Condensed Matter

created Dec 10, 2009 | popularity 5 / 5 (2) | comments 0

(PhysOrg.com) -- Two scientists at the U.S. Department of Energy's Brookhaven National Laboratory have developed a method to control the buildup of hydrogen fluoride gas during the growth of precision crystals ...


New laser -- it's a gas, gas, gas... sensor

New laser -- it's a gas, gas, gas... sensor

Technology / Engineering

created Dec 04, 2009 | popularity 4.8 / 5 (4) | comments 0

(PhysOrg.com) -- A new generation of optical sensors is enabling the development of robust, long-lasting, lighting-fast trace gas detectors for use in a wide range of industrial, security and domestic applications.


Greenhouse gas carbon dioxide ramps up aspen growth

Space & Earth / Environment

created Dec 04, 2009 | popularity 3.5 / 5 (8) | comments 6

The rising level of atmospheric carbon dioxide may be fueling more than climate change. It could also be making some trees grow like crazy.


Team using Subaru Telescope makes major discovery

Team using Subaru Telescope makes major discovery

Space & Earth / Astronomy

created Dec 03, 2009 | popularity 4.8 / 5 (21) | comments 2

An international team of scientists that includes an astronomer from Princeton University has made the first direct observation of a planet-like object orbiting a star similar to the sun.


Carbonic anhydrase

Blood Enzyme Could Help Realize Clean Coal

Chemistry / Biochemistry

created Dec 03, 2009 | popularity 4 / 5 (5) | comments 0

(PhysOrg.com) -- An enzyme in our blood that enables our lungs to exhale carbon dioxide could be the key to isolating carbon dioxide emissions from coal plants in order to store them safely underground. A ...


A greener way to get electricity from natural gas

A greener way to get electricity from natural gas

Technology / Energy

created Dec 03, 2009 | popularity 3.7 / 5 (16) | comments 9

(PhysOrg.com) -- A new type of natural-gas electric power plant proposed by MIT researchers could provide electricity with zero carbon dioxide emissions to the atmosphere, at costs comparable to or less than ...