One of the great inventions of the 20th century was the creation of neodymium magnets.
Neodymium magnets were invented in the early 1980's by two groups of physicists working independently from one another.
Neodymium magnets are permanent dense magnets that produce powerful magnetic fields and are highly resistant to being demagnetized.
This makes them ideal for use in electronics or any electromagnetic application requiring a reduction in size but an increase in power (power to weight ratio).
These magnets are used in a wide range of products - from computer hard drives, headphones, audio speakers, cordless tools, magnetic resonance imaging equipment (MRI), electric motors, hybrid and electric vehicles, airplanes and trains, to self-powered flashlights, fasteners and toys.
Neodymium magnets were invented in the early 1980's by two groups of physicists working independently from one another.
One group was led by John J. Croat of the General Motors Physics Laboratory, and the other was led by Massato Sagawa of Sumitomo Special Metals in Japan.
Both groups invented different manufacturing processes to produce neodymium magnets, which are made from rare earth elements.
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