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A Nickel-plated neodymium magnet on a bracket from a hard disk drive Nickel-plated neodymium magnet cubes Left: high-resolution transmission electron microscopy image of Nd 2 Fe 14 B; right: crystal structure with unit cell marked Inventor Masato Sagawa demonstrating a NdFeB magnet's force with 2 kg bottle.
Neodymium magnet on a mu-metal bracket from a hard drive. Neodymium magnets (an alloy, Nd 2 Fe 14 B) are the strongest permanent magnets known. A neodymium magnet of a few tens of grams can lift a thousand times its own weight, and can snap together with enough force to break bones.
Ferrofluid on glass, with a rare-earth magnet underneath. A rare-earth magnet is a strong permanent magnet made from alloys of rare-earth elements.Developed in the 1970s and 1980s, rare-earth magnets are the strongest type of permanent magnets made, producing significantly stronger magnetic fields than other types such as ferrite or alnico magnets.
from the Greek "dysprositos", meaning hard to get. Additive in neodymium based magnets, lasers, magnetostrictive alloys such as terfenol-D, hard disk drives: 5.2 67 Ho Holmium: after Stockholm (in Latin, "Holmia"), the native city of one of its discoverers. Lasers, wavelength calibration standards for optical spectrophotometers, magnets: 1.3 68 Er
Magnetic storage media, primarily hard disks, are widely used to store computer data as well as audio and video signals. In the field of computing, the term magnetic storage is preferred and in the field of audio and video production, the term magnetic recording is more commonly used. The distinction is less technical and more a matter of ...
With hard magnetic materials (such as sintered neodymium magnets), the detailed microscopic process of magnetization reversal depends on whether the magnet is in an open-circuit or closed-circuit configuration, since the magnetic medium around the magnet influences the interactions between domains in a way that cannot be fully captured by a ...
If there's one event you don't want to miss, it's the 92nd annual Rockefeller Center Christmas Tree Lighting ceremony.. The Norway spruce, which stands at 74-feet tall and 43-feet wide, will be ...
A hard disk drive (HDD), hard disk, hard drive, or fixed disk [a] is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magnetic material.
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