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Magnetic flux. In physics, specifically electromagnetism, the magnetic flux through a surface is the surface integral of the normal component of the magnetic field B over that surface. It is usually denoted Φ or ΦB. The SI unit of magnetic flux is the weber (Wb; in derived units, volt–seconds), and the CGS unit is the maxwell.
Magnetic storage or magnetic recording is the storage of data on a magnetized medium. Magnetic storage uses different patterns of magnetisation in a magnetizable material to store data and is a form of non-volatile memory. The information is accessed using one or more read/write heads . Magnetic storage media, primarily hard disks, are widely ...
A samarium–cobalt (SmCo) magnet, a type of rare-earth magnet, is a strong permanent magnet made of two basic elements: samarium and cobalt . They were developed in the early 1960s based on work done by Karl Strnat at Wright-Patterson Air Force Base and Alden Ray at the University of Dayton. In particular, Strnat and Ray developed the first ...
In the U.S. education system, magnet schools are public schools with specialized courses or curricula. Normally, a student will attend an elementary school, and this also determines the middle school and high school they attend unless they move. "Magnet" refers to how magnet schools accept students from different areas, pulling students out of ...
Academic Magnet High School was established in 1988, and the first class graduated in 1992. The school was originally located as a separate sub-campus of Burke High School in downtown Charleston. It then moved to the Charleston Naval Base, where it stayed until 2010, when it moved to the newly built Bonds Wilson campus on the site of the old ...
Plastic magnet. A plastic magnet is a non-metallic magnet made from an organic polymer. Plastic magnets could be used in computer hardware such as disc drives, as well as in medical devices such as pacemakers and cochlear implants, where the organic material is more likely to be biocompatible than its metallic counterparts. [citation needed]
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