demagnetization
71Réfrigération magnétique — La réfrigération magnétique repose sur la propriété physique de certains matériaux magnétiques qui voient leur température intrinsèque s élever lorsqu’ils sont soumis à un champ magnétique. Ce phénomène dénommé effet magnétocalorique (EMC) est… …
72demagnetizer — See demagnetization. * * * …
73Barkhausen effect — /bahrk how zeuhn, bahr kow /, 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. [1955 60; named after H. Barkhausen (1881… …
74demagnetize — demagnetizable, adj. demagnetization, n. demagnetizer, n. /dee mag ni tuyz /, v.t., demagnetized, demagnetizing. to remove magnetization from. Also, esp. Brit., demagnetise. [1830 40; DE + MAGNETIZE] * * * …
75Giauque, William Francis — ▪ American chemist born May 12, 1895, Niagara Falls, Ont., Can. died March 28, 1982, Berkeley, Calif., U.S. Canadian born American physical chemist and winner of the Nobel Prize for Chemistry in 1949 for his studies of the properties of… …
76remagnetize — verb To magnetize something which has previously been demagnetized See Also: demagnetization …
77cryomagnetic — adjective a) Of or pertaining to cryomagnetism or to cryomagnets (that operate at low temperature) b) Of or pertaining to the generation of low temperatures by the adiabatic demagnetization of paramagnetic materials …
78demagnetisation — noun Chiefly British alternate spelling of demagnetization …
79Lowest temperature recorded on Earth — The lowest temperature ever recorded at the surface of the Earth was −89.2 °C (−128.6 °F; 184.0 K) at the Russian Vostok Station in Antarctica July 21, 1983.[1] Lower temperatures have been achieved in the laboratory, including a record …
80Order and disorder (physics) — In physics, the terms order and disorder designate the presence or absence of some symmetry or correlation in a many particle system. In condensed matter physics, systems typically are ordered at low temperatures; upon heating, they undergo one… …
