News tagged with gas molecules

Buffer gas cooling could open up the field of ultracold physics

(PhysOrg.com) -- "Scientists have been making Bose-Einstein Condensates [BECs] for nearly 15 years," Charlie Doret tells PhysOrg.com. "Essentially all BEC research to date, however, begins with laser cooling. Unfortunately, ...

Physics / General Physics

created Sep 17, 2009 | popularity 4.8 / 5 (23) | comments 2 feature

Electrons in concert: A simple probe for collective motion in ultracold plasmas

(PhysOrg.com) -- Collective, or coordinated behavior is routine in liquids, where waves can occur as atoms act together. In a milliliter (mL) of liquid water, 1022 molecules bob around, colliding. When a bre ...

Physics / Plasma Physics

created Feb 06, 2012 | popularity 4.5 / 5 (8) | comments 0 | with audio podcast

First atomic X-ray laser created

Scientists working at the U.S. Department of Energy's (DOE) SLAC National Accelerator Laboratory have created the shortest, purest X-ray laser pulses ever achieved, fulfilling a 45-year-old prediction and ...

Physics / General Physics

created Jan 25, 2012 | popularity 4.8 / 5 (29) | comments 14 | with audio podcast

How wet is water's surface? Some water molecules split the difference between gas and liquid

(PhysOrg.com) -- Air and water meet over most of the earth's surface, but exactly where one ends and the other begins turns out to be a surprisingly subtle question.

Chemistry / Materials Science

created Jun 08, 2011 | popularity 5 / 5 (3) | comments 2 | with audio podcast

A paperweight for platinum: Bracing catalyst in material makes fuel cell component work better, last longer

A new combination of nanoparticles and graphene results in a more durable catalytic material for fuel cells, according to work published today online at the Journal of the American Chemical Society. The catalytic ...

Nanotechnology / Nanomaterials

created Feb 09, 2011 | popularity 4.8 / 5 (6) | comments 3 | with audio podcast

Milestone: A methane-metal marriage

(PhysOrg.com) -- University of Arizona scientists have inserted metal atoms into methane gas molecules and obtained a detailed structure of the resulting molecule. The discovery could be a key step in making ...

Chemistry / Materials Science

created Dec 20, 2010 | popularity 4.9 / 5 (8) | comments 2 | with audio podcast

Unpeeling atoms and molecules from the inside out

(PhysOrg.com) -- The first published scientific results from the world's most powerful hard X-ray laser, located at the Department of Energy's SLAC National Accelerator Laboratory, show its unique ability ...

Physics / General Physics

created Jun 30, 2010 | popularity 5 / 5 (15) | comments 5 | with audio podcast

Zapping Titan-like atmosphere with UV rays creates life precursors

The first experimental evidence showing how atmospheric nitrogen can be incorporated into organic macromolecules is being reported by a University of Arizona team.

Chemistry / Biochemistry

created Jun 29, 2010 | popularity 4.7 / 5 (17) | comments 13 | with audio podcast

Plastic laser detects tiny amounts of explosives

(PhysOrg.com) -- Detecting hidden explosives is a difficult task but now researchers in the UK have developed a completely new way of detecting them, with a laser sensor capable of detecting molecules of explosives ...

Physics / Condensed Matter

created Jun 08, 2010 | popularity 5 / 5 (11) | comments 1 | with audio podcast report

Mathematicians Solve 140-Year-Old Boltzmann Equation

(PhysOrg.com) -- Two University of Pennsylvania mathematicians have found solutions to a 140-year-old, 7-dimensional equation that were not known to exist for more than a century despite its widespread use in modeling the ...

Other Sciences / Mathematics

created May 13, 2010 | popularity 4.8 / 5 (69) | comments 5 | with audio podcast

Cassini Shows Saturnian Roller Derby, Strange Weather

(PhysOrg.com) -- The seemingly serene orb of Saturn is in fact a gas giant with extraordinary patterns of charged particles and rough and tumble roller derbies for rings. Such are the findings of NASA's Cassini ...

Space & Earth / Space Exploration

created Mar 18, 2010 | popularity 5 / 5 (7) | comments 0 | with audio podcast

Seeing the quantum in chemistry: Scientists control chemical reactions of ultracold molecules

(PhysOrg.com) -- Physicists at JILA have for the first time observed chemical reactions near absolute zero, demonstrating that chemistry is possible at ultralow temperatures and that reaction rates can be ...

Physics / Quantum Physics

created Feb 11, 2010 | popularity 4.4 / 5 (12) | comments 0 | with audio podcast

Creating a quantum gas

(PhysOrg.com) -- "One of the many reasons people study ultracold gases is for their potential as model quantum systems," Deborah Jin tells PhysOrg.com. "There is a need to model quantum many-body systems because a lot of ...

Physics / Quantum Physics

created Feb 01, 2010 | popularity 4.3 / 5 (10) | comments 2 | with audio podcast feature

Opening the Door for CO2

(PhysOrg.com) -- Until recently, factory smokestacks that produced nothing but carbon dioxide and water vapor were considered exemplary. Now CO2 has become notorious as a greenhouse gas, and the danger of climate change has ...

Chemistry / Materials Science

created Aug 24, 2009 | popularity 3.8 / 5 (9) | comments 4

Scientists discover giant Rydberg atom molecules

A group of University of Oklahoma researchers led by Dr. James P. Shaffer, Homer L. Dodge Department of Physics and Astronomy, have discovered giant Rydberg molecules with a bond as large as a red blood cell. Determining ...

Physics / Condensed Matter

created Jun 24, 2009 | popularity 4.5 / 5 (13) | comments 4