AIP EMILIO SEGRE VISUAL ARCHIVES, PHYSICS TODAY COLLECTION / SCIENCE PHOTO LIBRARY AIP EMILIO SEGRE VISUAL ARCHIVES, PHYSICS TODAY COLLECTION / SCIENCE PHOTO LIBRARY
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Arnold Nordsieck (1911-1971), US theoretical physicist. Nordsieck is best known for his work with Felix Bloch on the infrared problem in quantum electrodynamics. He developed the inertial electrostatic gyroscope (ESG) used as part of the inertial navigation system of nuclear submarines that allows them to remain underwater without having to surface to ascertain their location. Photographed circa 1969.
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