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Shielding for ambitious neutron experiment

Physics / General Physics

created Jul 24, 2008 | popularity 3.9 / 5 (16) | comments 0

In science fiction stories it is either the inexhaustible energy source of the future or a superweapon of galactic magnitude: antimaterial. In fact, antimaterial can neither be found on Earth nor in space, is extremely complex ...


Tailoring the optical dipole force for use on molecules

Physics / General Physics

created Oct 29, 2009 | popularity 3.5 / 5 (6) | comments 1

(PhysOrg.com) -- "Scientists have been working with dipole fields for quite some time," Peter Barker tells PhysOrg.com. "However, most of the work is focused on very small particles, like atoms, or on larger particles, such a ...


Casting for molecules

Casting for molecules

Physics / General Physics

created Apr 15, 2008 | popularity 4.2 / 5 (13) | comments 0

Many of the larger molecules have something in common with dolls - movable limbs. Physicists at the Fritz Haber Institute of the Max Planck Society in Berlin can now sort molecules according to the direction ...


Asian monsoons might become more intense

Space & Earth / Environment

created Jan 17, 2007 | popularity 3.8 / 5 (5) | comments 0

British scientists have found an unexpected link between Asian monsoons and an oscillating pattern of Indian Ocean sea surface temperatures.


'Voltage Patterning' could be next step in nanostructure lithography

Physics / Optics & Photonics

created Mar 02, 2009 | popularity 4 / 5 (15) | comments 4

(PhysOrg.com) -- "What you want these days is to have precise control of nanostructures. Using masks and optical techniques, it is possible to control how nanostructures grow for use in practical applications," David Field ...


Researchers Resolve 40-Year Dispute Over Disappearing Physical Property

Physics / General Physics

created Oct 21, 2008 | popularity 2.9 / 5 (21) | comments 4

(PhysOrg.com) -- A property that can be used for memory in electronic devices disappears at high temperatures, and University of Arkansas scientists and colleagues in the Czech Academy of Sciences have used both theory and ...


A new family of molecules for self-assembly: The carboranes

A New Family of Molecules for Self-Assembly: The Carboranes

Nanotechnology / Nanomaterials

created Mar 24, 2009 | popularity 4.3 / 5 (3) | comments 0

(PhysOrg.com) -- To be useful in real-world applications, a self-assembled monolayer (SAM) of molecules on a surface must have a stable and controllable geometry. Researchers at Penn State and the Sigma-Aldrich ...


Corals show Aussie drought link to Asian monsoon

Space & Earth / Earth Sciences

created Jan 19, 2007 | popularity 4.2 / 5 (6) | comments 0

Droughts of greater severity and length could be in store for Australia and Indonesia if the Asian monsoon system continues to strengthen, palaeoclimatologists have warned.


Contracts Awarded for Production of NSLS-II Storage Ring Magnets

Physics / General Physics

created Nov 09, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- All seven contracts for the production of the NSLS-II storage ring magnets have now been awarded -- a significant milestone for the project. The magnets -- 750 in total -- will be made by vendors in the United ...


Rice scientists unveil 'nanoegg'

Nanotechnology / Nanomaterials

created Jul 20, 2006 | popularity 2.9 / 5 (16) | comments 0

Researchers at Rice University's Laboratory for Nanophotonics (LANP) have unveiled the "nanoegg," the latest addition to their family ultrasmall, light-focusing particles. A cousin of the versatile nanoshell, nanoeggs are ...


Can a single molecule behave as a mirror?

Nanotechnology / Nanophysics

created Nov 18, 2008 | popularity 4.4 / 5 (59) | comments 7

(PhysOrg.com) -- “We have shown for the first time, theoretically, that a single molecule can behave as a perfect mirror,” Mario Agio tells PhysOrg.com. “Imagine that your mirror at home becomes a single molecule and that y ...


Reversals of Earth's Magnetic Field Explained by Small Core Fluctuations

Reversals of Earth's Magnetic Field Explained by Small Core Fluctuations

Physics / General Physics

created Apr 23, 2009 | popularity 4.7 / 5 (41) | comments 25

(PhysOrg.com) -- Based on studies of old volcanic basalt, scientists know that the Earth’s magnetic field reverses at irregular intervals, ranging from tens of thousands to millions of years. Volcanic basalt ...


Cell Phone Antenna

Spinning carbon nanotubes spawns new wireless applications

Nanotechnology / Nanomaterials

created Mar 09, 2009 | popularity 4.6 / 5 (10) | comments 2

The University of Cincinnati has long been known for its world-record-breaking carbon nanotubes. Now researchers at the University of Cincinnati have discovered new uses by spinning carbon nanotubes (CNTs) ...


New NIST Detector Can 'See' Single Neutrons Over Broad Range

New detector can 'see' single neutrons over broad range

Physics / General Physics

created Mar 10, 2008 | popularity 4.6 / 5 (7) | comments 0

Researchers at the National Institute of Standards and Technology (NIST) and the University of Maryland have developed a new optical method that can detect individual neutrons and record them over a range ...


LHC magnets: the great descent

LHC magnets: the great descent

Physics /

created Mar 07, 2005 | popularity 5 / 5 (1) | comments 0

The first superconducting magnet for the Large Hadron Collider (LHC) was lowered into the accelerator tunnel at 2.00 p.m. on Monday, 7th March. This is the first of the 1232 dipole magnets for the future collider, ...