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Ernst Ruska—Inventor of the Electron Microscope

      Ernst Ruska, a German electrical engineer, is credited with inventing the electron microscope. The earliest electron microscope was developed in 1931, and the first commercial, mass-produced instrument became available in 1939. Electron microscopy, considered one of the major scientific advances of the 20th century, has important applications in many fields of science, including biology and medicine. It has been used to study metals, viruses, proteins, and molecules. For “fundamental work in electron optics and for the design of the first electron microscope,” Ruska was awarded the 1986 Nobel Prize for physics, which he shared with Gerd Binnig (1947-) and Henrich Rohrer (1933-) “for their contribution to the scanning tunneling microscope.”
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