AIP EMILIO SEGRE VISUAL ARCHIVES / SCIENCE PHOTO LIBRARY AIP EMILIO SEGRE VISUAL ARCHIVES / SCIENCE PHOTO LIBRARY
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William Hansen (1909-1949), US physicist. Hansen is best known as being one of the founders of microwave electronics. In 1948 he co-founded Varian Associates, one of the first high-tech companies in Silicon Valley, San Francisco, USA.
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