The mere demagnetization is to be distinguished from that with which the permanent magnetic orientation of a metal hulk can be lifted with a strong magnetic field for some time.
22.
Major advances first appeared in the late 1920s when cooling via adiabatic demagnetization was independently proposed by Peter Debye in 1926 and chemistry Nobel Laureate William F . Giauque in 1927.
23.
For the special case of ellipsoids ( which includes spheres ) the demagnetization field is linearly related to the magnetization by a geometry dependent constant called the "'demagnetizing factor " '.
24.
The basic operating principle of an adiabatic demagnetization refrigerator ( ADR ) is the use of a strong magnetic field to control the entropy of a sample of material, often called the " refrigerant ".
25.
Barkhausen's work in acoustics and magnetism led to the discovery, which became the main piece of experimental evidence supporting the spins ), that occurs during a continuous process of magnetization or demagnetization.
26.
A perpetual motion machine that uses magnets would fail due to wear on its bearings long before demagnetization would be the expected failure mode . talk ) 17 : 40, 26 March 2014 ( UTC)
27.
:: Extremely low temperatures are achieved first by evaporating liquid helium ( liquefaction of helium being achieved by the Joule-Thomson effect ) and then by isentropic demagnetization of the subatomic particles ( so demagnetizing particles without changing entropy ).
28.
For Clinton and his aides, fearful of what a new tide of Cubans would carry to American shores, the main virtue of the cold shoulder is its role as a repellent; the White House calls it " demagnetization ."
29.
Hughes writes, " . . . the ceramicist slightly varied the material composition of the cores, seeking a combination with the magnetic characteristics, including a square hysteresis curve, that would provide lightning-fast magnetization and demagnetization ."
30.
The period from 1965 to 1984 was characteristic of technical modernization and perfecting of tactics of using RF . assault ships type 401 were reconstructed, new minesweepers type 331 were built, a station for demagnetization of ships and the ships were rearmed.
