Magnetism
hideIn physics, magnetism is one of the forces in which materials and moving charged particles exert attractive, repulsive force or moments on other materials or charged particles. Some well-known materials that exhibit easily detectable magnetic properties (called magnets) are nickel, iron, cobalt, gadolinium and their alloys; however, all materials are influenced to greater or lesser degree by the presence of a magnetic field. Substances that are negligibly affected by magnetic fields are known as non-magnetic substances. They include copper, aluminium, water, and gases.
Magnetism also has other definitions and descriptions in physics, particularly as one of the two components of electromagnetic waves such as light.
For more information about Magnetism, read the full article at
Wikipedia.
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News tagged with magnetic
New imaging technique reveals different heart motions by age, gender
19 hours ago |
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Using a new noninvasive imaging technique, scientists said they have discovered important, fundamental differences in heart motion by age and gender.
A see-through surprise: Scientists make solid material transparent to terahertz waves
Dec 07, 2009 |
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Very often in science, the unexpected discovery turns out to be the most significant. Rice University Professor Junichiro Kono and his team weren't looking for a breakthrough in the transmission of terahertz signals, but ...
Don't I know you? Research sheds light on memorial retrieval
Medicine & Health / Neuroscience
Dec 07, 2009 |
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We have all had the embarrassing experience of seeing an acquaintance in an unfamiliar setting. We know we know them but can't recall who they are. But with the correct cues from conversation or context, something seems ...
New technology could boost disease detection tests' speed and sensitivity (w/ Video)
Nanotechnology / Bio & Medicine
Dec 07, 2009 |
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A team led by Yale University scientists has developed a way to rapidly manipulate and sort different cells in the blood using magnetizable liquids. The findings, which will be published the week of December ...
Super cool atom thermometer
Dec 07, 2009 |
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As physicists strive to cool atoms down to ever more frigid temperatures, they face the daunting task of developing new, reliable ways of measuring these extreme lows. Now a team of physicists has devised ...
Brain scans show distinctive patterns in people with generalized anxiety disorder
Medicine & Health / Psychology & Psychiatry
Dec 07, 2009 |
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Scrambled connections between the part of the brain that processes fear and emotion and other brain regions could be the hallmark of a common anxiety disorder, according to a new study from the Stanford University School ...
Researchers create 'synthetic magnetic fields' for neutral atoms
Dec 02, 2009 |
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(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 ...
Wizard at circuits, physics
Dec 03, 2009 |
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(PhysOrg.com) -- Donhee Ham, Gordon McKay Professor of Electrical Engineering and Applied Physics, uses his personal energy and understanding of physics to design innovative integrated circuits.
I see your pain
Medicine & Health / Neuroscience
Dec 03, 2009 |
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(PhysOrg.com) -- How can some sportsmen and women, in the heat of the moment, play on through pain that would floor anyone else? Bert Trautmann, the Manchester City goalkeeper, famously played on through to ...
Researchers put a new spin on atomic musical chairs
Dec 02, 2009 |
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Researchers from the National Institute of Standards and Technology and the Naval Research Laboratory have developed a new way to introduce magnetic impurities in a semiconductor crystal by prodding it with ...
A little magic provides an atomic-level look at bone
Chemistry / Analytical Chemistry
Dec 02, 2009 |
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(PhysOrg.com) -- A new study using solid-state NMR spectroscopy to analyze intact bone paves the way for atomic-level explorations of how disease and aging affect bone. The research by scientists at the University of Michigan ...
