Barkhausen effect

 [bahrk-hou-zuhn, bahr-kou-]  

Bark·hau·sen effect

   [bahrk-hou-zuhn, bahr-kou-]
noun Physics.
the phenomenon of short, sudden changes in the magnetism of a ferromagnetic substance occurring when the intensity of the magnetizing field is continuously altered.
Origin:
1955–60; named after H. Barkhausen (1881–1956), German physicist
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Barkhausen effect is always a great word to know.
So is nuclear radiation. Does it mean:
radiation in the form of elementary particles emitted by an atomic nucleus produced by decay of radioactive substances or by nuclear fission
the acceleration of a falling body in the earth's gravitational field, inversely proportional to the square of the distance from the body to the center of the earth
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Collins
World English Dictionary
Barkhausen effect (German ˈbarkhaʊzən)
 
—n
the phenomenon that ferromagnetic material in an increasing magnetic field becomes magnetized in discrete jumps, discovered by Heinrich Georg Barkhausen (1881--1956)

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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