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  2. Magnetic balls sold at Walmart recalled due to risk of ...

    www.aol.com/news/magnetic-balls-sold-walmart...

    On Dec. 28, the United States Consumer Product Safety Commission announced a recall of more than 4,200 magnetic ball sets, sold exclusively on Walmart.com through Joybuy. The CPSC warned that the ...

  3. Rare-earth magnet - Wikipedia

    en.wikipedia.org/wiki/Rare-earth_magnet

    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. The magnetic field typically produced by rare-earth ...

  4. Neodymium magnet - Wikipedia

    en.wikipedia.org/wiki/Neodymium_magnet

    Inventor Masato Sagawa demonstrating a NdFeB magnet's force with 2 kg bottle. A neodymium magnet (also known as NdFeB, NIB or Neo magnet) is a permanent magnet made from an alloy of neodymium, iron, and boron to form the Nd 2 Fe 14 B tetragonal crystalline structure. [1] They are the most widely used type of rare-earth magnet.

  5. Samarium–cobalt magnet - Wikipedia

    en.wikipedia.org/wiki/Samarium–cobalt_magnet

    Samarium–cobalt magnet. 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.

  6. Bitter electromagnet - Wikipedia

    en.wikipedia.org/wiki/Bitter_electromagnet

    Video is available. [1] A Bitter electromagnet or Bitter solenoid is a type of electromagnet invented in 1933 by American physicist Francis Bitter used in scientific research to create extremely strong magnetic fields. Bitter electromagnets have been used to achieve the strongest continuous manmade magnetic fields on earth―up to 45 teslas, as ...

  7. See Why Strong Magnets Have a Bizarre Reaction to Copper - AOL

    www.aol.com/lifestyle/see-why-strong-magnets...

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