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News tagged with external

Friction stir welding unites reliability, affordability

(Phys.org) -- NASA's next heavy-lift launch vehicle, the Space Launch System, is moving further in development faster thanks to proven advanced technologies like friction stir welding.

Space & Earth / Space Exploration

created May 21, 2012 | popularity not rated yet | comments 0

Spot a bot to stop a botnet

Computer scientists in India have developed a two-pronged algorithm that can detect the presence of a botnet on a computer network and block its malicious activities before it causes too much harm. The team ...

Technology / Internet

created May 01, 2012 | popularity 4.3 / 5 (10) | comments 2 | with audio podcast

Particles magnetically 'click' to form superstructures

(Phys.org) -- Geomag, the popular children's toy, contains small metal spheres that can be magnetically connected with a click to build a variety of towers, bridges, and sculptures. In a new study, scientists ...

Chemistry / Materials Science

created Apr 10, 2012 | popularity 4.9 / 5 (8) | comments 1 | with audio podcast feature

Protein complex affects cells' ability to move, respond to external cues

In a paper published today in the journal, Cell, a team from the University of North Carolina at Chapel Hill has explained for the first time how a long-studied protein complex affects cell migration and how external cues a ...

Biology / Cell & Microbiology

created Mar 01, 2012 | popularity not rated yet | comments 0 | with audio podcast

Exotic new matter expected in ultracold atoms

(PhysOrg.com) -- Just as NASA engineers test new rocket designs in computer studies before committing themselves to full prototypes, so physicists will often model matter under various circumstances to see whether something ...

Physics / Quantum Physics

created Feb 29, 2012 | popularity 4.5 / 5 (8) | comments 1 | with audio podcast

A surprising molecular switch: Lipids help control the development of cell polarity

In a standard biology textbook, cells tend to look more or less the same from all sides. But in real life cells have fronts and backs, tops and bottoms, and they orient many of their structures according to ...

Biology / Cell & Microbiology

created Feb 19, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Atomtronics: A new phase

Just as NASA engineers test new rocket designs in computer studies before committing themselves to full prototypes, so physicists will often model matter under various circumstances to see whether something ...

Physics / General Physics

created Feb 19, 2012 | popularity 5 / 5 (3) | comments 1 | with audio podcast

Many companies fall short of social responsibility promises

(PhysOrg.com) -- Whether eliminating child labor, creating environmentally friendly technology or working against all forms of corruption, many corporations fail to become socially responsible despite promises to change, ...

Other Sciences / Economics & Business

created Feb 09, 2012 | popularity not rated yet | comments 0

Bird populations near Fukushima are more diminished than expected

(PhysOrg.com) -- Low-level radiation in Fukushima Prefecture appears to have had immediate effects on bird populations, and to a greater degree than was expected from a related analysis of Chernobyl, an international ...

Space & Earth / Environment

created Feb 09, 2012 | popularity 5 / 5 (3) | comments 0

Solid state Swiss Army Knife can save digital lives

Victorinox has pulled from its technology pocket a version of its vaunted Swiss Army knife equipped with a solid state drive capable of holding all of the digital data in a person's life.

Electronics / Consumer & Gadgets

created Jan 11, 2012 | popularity 2.8 / 5 (4) | comments 5

New system may one day steer microrobots through blood vessels for disease treatment

Researchers use a magnetic field to generate both side-to-side and corkscrew-like motions of tiny robots.

Physics / General Physics

created Dec 16, 2011 | popularity 5 / 5 (4) | comments 3

New magnetic-field-sensitive alloy could find use in novel micromechanical devices

(PhysOrg.com) -- Led by a group at the University of Maryland (UMd), a multi-institution team of researchers has combined modern materials research and an age-old metallurgy technique to produce an alloy that ...

Physics / Condensed Matter

created Nov 23, 2011 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Research sparks record-breaking solar cell performances

(PhysOrg.com) -- Theoretical research by scientists with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) has led to record-breaking sunlight-to-electricity conversion ...

Technology / Energy & Green Tech

created Nov 07, 2011 | popularity 4.8 / 5 (30) | comments 35 | with audio podcast

MESSENGER data paints new picture of Mercury's magnetic field

A University of British Columbia geophysicist is part of a NASA mission that is analyzing the first sets of data being collected by MESSENGER as it orbits Mercury. The spacecraft is capturing new evidence that challenges ...

Space & Earth / Space Exploration

created Sep 30, 2011 | popularity 5 / 5 (3) | comments 5

Cloaking magnetic fields: The first 'antimagnet' device developed

Spanish researchers have designed what they believe to be a new type of magnetic cloak, which shields objects from external magnetic fields, while at the same time preventing any magnetic internal fields from ...

Physics / General Physics

created Sep 23, 2011 | popularity 4.3 / 5 (15) | comments 14 | with audio podcast