Hannes Alfvén
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Hannes Alfvén was a Swedish scientist and writer who made groundbreaking discoveries in plasma physics—the study of ionized gases—and won the Nobel Prize in Physics in 1970 for his work in this field. His contributions to understanding how charged particles behave in magnetic fields have had important applications in everything from astrophysics to fusion energy research, making him a central figure in twentieth-century physics.
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Hannes Olof Gösta Alfvén ( Swedish: [alˈveːn]; 30 May 1908 – 2 April 1995) was a Swedish electrical engineer, plasma physicist and winner of the 1970 Nobel Prize in Physics for his work on magnetohydrodynamics (MHD). He described the class of MHD waves now known as Alfvén waves. He was originally trained as an electrical power engineer and later moved to research and teaching in the fields of plasma physics and electrical engineering. Alfvén made many contributions to plasma physics, including theories describing the behavior of aurorae, the Van Allen radiation belts, the effect of magnetic storms on the Earth's magnetic field, the terrestrial magnetosphere, and the dynamics of plasmas in the Milky Way galaxy.
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1908 births1995 deaths20th-century Swedish astronomers20th-century Swedish physicistsAcademic staff of the KTH Royal Institute of TechnologyCritics of religionsFellows of the American Academy of Arts and SciencesFellows of the IEEEFluid dynamicistsForeign associates of the National Academy of SciencesForeign fellows of the Indian National Science Academy