|MadSci Network: Physics|
Normal pieces of matter are composed of particles such as protons, neutrons, and electrons; and all of these have the fundamental property of quantum mechanical spin. Spin gives each one of these particles an associated magnetic field. "Domains" can be likened to microscopic neighborhoods in which there is a strong reinforcing interaction between particles, and as a result, a great deal of order. The greater the degree of ordering within and between domains, the greater the resulting field will be. " gauss = force of the magnetic field" Electrons play the primary role in generating a magnetic field. Within an atom, electrons can exist either individually or in pairs within any given orbital. When they are paired, the individuals in that pair always have opposite spin: one up, one down. The fact that the spins have opposite orientation means that the two cancel one another. If all electrons are paired, no net magnetic field will be generated. "do magnets also have a range of frequencies that they operate at?" Yes they work on atomic frequencies and spin polarize "like a magnet's dipole" There are some new type of magnets that we can control its gauss and polar effects, we use electromagnets and the newest form of controlling magnets is using different colored light like "blue and green" http://www.sciencedaily.com/releases/2002/02/020204074942.htm http://www.trnmag.com/Stories/2002/050102/Light_boosts_plastic_magnet_05010 "Photoinduced Magnetization in the Organic-Based Magnet Mn(TCNE)x," Physical Review Letters http://www.jobwerx.com/news/Archives/Light-tunable.html Placing the item in an external magnetic field will result in the item retaining some of the magnetism on removal. Vibration has been shown to increase the effect. Ferrous materials aligned with the earth's magnetic field and which are subject to vibration (e.g. frame of a conveyor) have been shown to acquire significant residual magnetism. We use micro-waves to heat food and RF waves to talk on our cell phones; all are one of the same "magnetic fields" [note added by MadSci Admin: Strictly speaking they are electromagnetic fields.] http://www.arnoldmagnetics.com/mtc/index.htm http://en.wikipedia.org/wiki/Magnets I do hope this helps Thanks Brian Prater
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