EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY
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Marietta Blau (1894-1970), Austrian physicist. Blau introduced the use of photographic emulsions to detect ionizing radiation and particles such as nuclear decay products and cosmic rays. By 1936, she was detecting cosmic rays at altitudes of 2300 metres. In 1938, as a Jew, she relocated to Mexico to avoid persecution by the Nazis who had annexed Austria. Einstein helped secure her a place at the Technical University of Mexico as a professor. She was nominated five times for a Nobel Prize in the 1950s, but it is thought that her gender, religion, personality and health problems may have denied her recognition. Photographed in the 1950s.
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