| magnitude |
A measure of the strength of an earthquake or strain energy released by it, as determined by seismographic observations. This is a logarithmic value originally defined by Charles Richter (1935). An increase of one unit of magnitude (for example, from 4.6 to 5.6) represents a 10-fold increase in wave amplitude on a seismogram or approximately a 30-fold increase in the energy released. ...
출처: www.msnucleus.org/membership/html/jh/earth/diction...
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| magnesium |
a silvery-white element used as a light weight metal in airplanes and missiles
출처: www.msnucleus.org/membership/html/k-6/rc/dictionar...
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| magnetic resonance imaging |
a noninvasive, non-x-ray diagnostic technique based on the magnetic fields of hydrogen atoms in the body. MRI provides computer-generated images of the body's internal tissues and organs.
출처: www.gmhc.org/health/glossary3.html
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| magma |
Magma is molten rock (lava) from which igneous rock forms. MAGNETAR A magnetar is a highly magnetic star. Magnetar have magnetic fields of about 10 15 Gauss, about a thousand trillion times stronger than the Earth's. The strong magnetic field puts the star's surface under enormous stress, perhaps causing "starquakes" and resulting high energy bursts of radiation. These short-lived neutron stars were theorized to exist in 1992 by Robert C. Duncan and Christopher Thompson. ...
출처: www.enchantedlearning.com/subjects/astronomy/gloss...
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| magnitude |
A measure of the size of an earthquake, usually calculated from the common logarithm of the largest ground motion observed and corrected for distance from the earthquake focus.
출처: imnh.isu.edu/digitalatlas/glossary/letter.asp
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