Search results for magnetic signature:
Gene that magnetically labels cells shows potential as imaging tool
Jun 03, 2008 |
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Mammalian cells can produce tiny magnetic nuggets after the introduction of a single gene from bacteria, scientists have found. The gene MagA could become a valuable tool for tracking cells' movement through the body via ...
Upping the power triggers an ordered helical plasma
Nov 02, 2009 |
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If you keep twisting a straight elastic string, at some moment it starts kinking in a wild way. Something similar occurs when one increases the electrical current flowing in a magnetized plasma doughnut: it ...
Magnetic monopoles detected in a real magnet for the first time
Sep 03, 2009 |
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Researchers from the Helmholtz Centre Berlin, in cooperation with colleagues from Dresden, St. Andrews, La Plata and Oxford, have for the first time observed magnetic monopoles and how they emerge in a real ...
No place like home: New theory for how salmon, sea turtles find their birthplace
Biology /
Dec 01, 2008 |
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How marine animals find their way back to their birthplace to reproduce after migrating across thousands of miles of open ocean has mystified scientists for more than a century. But marine biologists at the University of ...
ONR demonstrates new counter-mine technology for ships
Apr 19, 2009 |
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In a time of increasing irregular warfare threats, the Navy has devised and successfully demonstrated a revolutionary technology to help reduce the risk of naval mine strikes to U.S. Navy ships.
Early scents really do get 'etched' in the brain
Medicine & Health / Neuroscience
Nov 05, 2009 |
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Common experience tells us that particular scents of childhood can leave quite an impression, for better or for worse. Now, researchers reporting the results of a brain imaging study online on November 5th ...
What makes Mars magnetic?
Aug 10, 2007 |
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So how have these rocks hung onto their magnetic directions and what do they tell us about Mars? Strangely, the answer to these questions might be sitting here on Earth.
Physicists Propose a Method to Observe Dirac Monopoles
Jul 28, 2009 |
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(PhysOrg.com) -- For decades, scientists have been intrigued by the hypothetical existence of magnetic monopoles - particles with only a north or south magnetic pole, thus having a nonzero magnetic charge. ...
Birds 'See' Earth's Magnetic Field
Nov 16, 2009 |
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When birds migrate over long distances -- sometimes thousands of miles -- they usually end up in exactly the same place year after year. Such accurate feats of navigation, accomplished by millions of birds ...
Where did Venus's water go?
Space & Earth / Space Exploration
Dec 18, 2008 |
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(PhysOrg.com) -- Venus Express has made the first detection of an atmospheric loss process on Venus's day-side. Last year, the spacecraft revealed that most of the lost atmosphere escapes from the night-side. ...
Twinkling Nanostars Improve Optical Imaging of Tumors
Nanotechnology / Bio & Medicine
Sep 25, 2009 |
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(PhysOrg.com) -- Researchers at Purdue University have created magnetically responsive gold nanostars that may offer a new approach to biomedical imaging. The nanostars gyrate when exposed to a rotating magnetic field and ...
Multiferroic compounds used to produce smaller and cheaper digital memories
Nov 27, 2009 |
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(PhysOrg.com) -- Is it possible to make even more compact digital memories for portable electronic devices and which consume even less energy? A team of French researchers has recently demonstrated that it ...
Tiny magnetic discs could kill cancer cells: study
Nanotechnology / Bio & Medicine
Nov 29, 2009 |
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Tiny magnetic discs just a millionth of a metre in diameter could be used to used to kill cancer cells, according to a study published on Sunday.
How the Moon produces its own water
Space & Earth / Space Exploration
Oct 15, 2009 |
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(PhysOrg.com) -- The Moon is a big sponge that absorbs electrically charged particles given out by the Sun. These particles interact with the oxygen present in some dust grains on the lunar surface, producing ...
3.2 billion-year-old surprise: Earth had strong magnetic field
Space & Earth / Earth Sciences
Apr 04, 2007 |
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Geophysicists at the University of Rochester announce in today’s issue of Nature that the Earth’s magnetic field was nearly as strong 3.2 billion years ago as it is today.
