News tagged with magnetic

Related topics: magnetic field , electrons , materials , atoms , metal

From stem cell to nerve cell in a few weeks

Many clinicians have pinned their hopes on stem cells. Stem cells could, for example, replace nerve cells after a stroke. However, until now it has not been possible to observe the process of live stem cells ...

Jan 22, 2015
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Brain imaging may help predict future behavior

Noninvasive brain scans, such as functional magnetic resonance imaging, have led to basic science discoveries about the human brain, but they've had only limited impacts on people's day-to-day lives. A review article published ...

Jan 07, 2015
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Magnetism

In 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.

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