News tagged with magnetic

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

FDA approves first neonatal MRI device

(HealthDay)—The first magnetic resonance imaging (MRI) device designed specifically for neonatal brain and head imaging in intensive care units has been approved by the U.S. Food and Drug Administration.

15 hours ago
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How physical exercise prevents dementia

Numerous studies have shown that physical exercise seems beneficial in the prevention of cognitive impairment and dementia in old age. Now researchers at Goethe University Frankfurt have explored in one of the first studies ...

20 hours ago
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Stroke recovery window may be wider than we think

Stroke survivors may experience delayed recovery of limb function up to decades after injury, according to a new case study. The article, published ahead of print in the Journal of Neurophysiology, was chosen as an APSselect ...

Jul 13, 2017
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Detecting long-term concussion in athletes

Lawyers representing both sides in concussion lawsuits against sports leagues may eventually have a new tool at their disposal: a diagnostic signature that uses artificial intelligence to detect brain trauma years after it ...

Jul 12, 2017
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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.

This text uses material from Wikipedia, licensed under CC BY-SA

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