Barkhausen effect

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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Barkhausen effect (German ˈbarkhaʊzən) [Click for IPA pronunciation guide]
 
n
the phenomenon that ferromagnetic material in an increasing magnetic field becomes magnetized in discrete jumps, discovered by Heinrich Georg Barkhausen (1881--1956)

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Barkhausen effect is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
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