| magnetic resonance imaging |
a type of diagnostic imaging that relies upon the interactions of magnetic fields and radio frequency radiation with body tissues. MRI is better than CT scans for viewing soft tissue.
Ãâó: www.ninds.nih.gov/health_and_medical/pubs/sci_repo...
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| magnetometer |
intrument for measuring magnetic fields. Spacecraft often carry fluxgate magnetometers, which measure components of the magnetic field (3 of them are combined to give its strength and direction) but need to be calibrated. Rubidium-vapor and similar instruments measure only the strength, but their reading is absolute, related to atomic constants.
Ãâó: www-spof.gsfc.nasa.gov/Education/wgloss.html
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| magnetic field |
a region in which magnetic forces can be observed. See "electromagnetic field," a more general field also including electric forces.
Ãâó: www-spof.gsfc.nasa.gov/Education/wgloss.html
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| magnetic lines of force |
Michael Faraday's original term for what is now widely called magnetic field lines.
Ãâó: www-spof.gsfc.nasa.gov/Education/wgloss.html
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| magnetism |
Branch of physics that studies the properties of magnets and magnetic fields.
Ãâó: www.nrcan.gc.ca/mms/scho-ecol/glos_e.htm
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