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[ruhs-kuh; German roo s-kah] /ˈrʌs kə; German ˈrʊs kɑ/
Ernst (August Friedrich)
[ernst ou-goo st free-drikh] /ɛrnst ˈaʊ gʊst ˈfri drɪx/ (Show IPA),
1906–88, German physicist and electrical engineer: developed electron microscope; Nobel prize 1986. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Ruska in Science
German electrical engineer who in 1931 developed the world's first electron microscope, which he continued to improve in subsequent work. For this work he shared with German physicist Gerd Binnig and Swiss physicist Heinrich Rohrer the 1986 Nobel Prize for physics.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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