Thermo-magnetic motors work by heating a ferromagnetic material above its
curie pointThe Curie temperature , or Curie point, is a term in physics and materials science, named after Pierre Curie , and refers to a characteristic property of a ferromagnetic or piezoelectric material....
(where it becomes non-magnetic) and then cooling it below that critical temperature. Invented by
Nikola TeslaNikola Tesla was an inventor and a mechanical and electrical engineer. He is frequently cited as one of the most important contributors to the birth of commercial electricity and is best known for his many revolutionary developments in the field of electromagnetism in the late 19th and early 20th...
, experiments have thus far only produced extremely inefficient working prototypes.
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Thermo-magnetic motors work by heating a ferromagnetic material above its
curie pointThe Curie temperature , or Curie point, is a term in physics and materials science, named after Pierre Curie , and refers to a characteristic property of a ferromagnetic or piezoelectric material....
(where it becomes non-magnetic) and then cooling it below that critical temperature. Invented by
Nikola TeslaNikola Tesla was an inventor and a mechanical and electrical engineer. He is frequently cited as one of the most important contributors to the birth of commercial electricity and is best known for his many revolutionary developments in the field of electromagnetism in the late 19th and early 20th...
, experiments have thus far only produced extremely inefficient working prototypes.