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  2. Magnet - Wikipedia

    en.wikipedia.org/wiki/Magnet

    Magnets can be used in scrap and salvage operations to separate magnetic metals (iron, cobalt, and nickel) from non-magnetic metals (aluminum, non-ferrous alloys, etc.). The same idea can be used in the so-called "magnet test", in which a car chassis is inspected with a magnet to detect areas repaired using fiberglass or plastic putty.

  3. Iron filings - Wikipedia

    en.wikipedia.org/wiki/Iron_filings

    As the name suggests, iron filings can be obtained from metal working operations as the scrap material filed off larger iron and steel parts. [2] They are very often used in science demonstrations to show the direction of a magnetic field. Since iron is a ferromagnetic material, a magnetic field induces each particle to become a tiny bar magnet ...

  4. Magnetic switchable device - Wikipedia

    en.wikipedia.org/wiki/Magnetic_switchable_device

    A magnetic switchable device (often called a magnetic base) is a magnetic fixture that uses one or more permanent magnets in a configuration that allows the external field to be turned on or off. They are used in many applications including optics, metalworking, lifting, and robotics, to attach items to metal surfaces in a secure but temporary way.

  5. Magnetic alloy - Wikipedia

    en.wikipedia.org/wiki/Magnetic_alloy

    A magnetic alloy is a combination of various metals from the periodic table such as ferrite that exhibits magnetic properties such as ferromagnetism. Typically the alloy contains one of the three main magnetic elements (which appear on the Bethe-Slater curve ): iron (Fe) , nickel (Ni) , or cobalt (Co) .

  6. Alnico - Wikipedia

    en.wikipedia.org/wiki/Alnico

    The metal bar (bottom) is a keeper, which is placed across the poles when the magnet is not in use. This helps to preserve the magnetization. This helps to preserve the magnetization. Alnico is a family of iron alloys which, in addition to iron are composed primarily of aluminium (Al), nickel (Ni), and cobalt (Co), hence the acronym [ 1 ] al-ni ...

  7. When should you stop eating Thanksgiving leftovers? Here's ...

    www.aol.com/stop-eating-thanksgiving-leftovers...

    Yes, frozen Thanksgiving leftovers can be safely reheated without thawing first. Reheating will take longer than if the food were thawed first though. Best practices for thawing leftovers

  8. Neodymium magnet - Wikipedia

    en.wikipedia.org/wiki/Neodymium_magnet

    The greater forces exerted by rare-earth magnets create hazards that may not occur with other types of magnet. Neodymium magnets larger than a few cubic centimeters are strong enough to cause injuries to body parts pinched between two magnets, or a magnet and a ferrous metal surface, even causing broken bones. [45]

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