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Reference.org
William Coblentz
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<p>William Weber Coblentz (November 20, 1873 – September 15, 1962) was an American <a href="/facts/Physicist/cQcgvSIm">physicist</a> notable for his contributions to <a href="/facts/Infrared/44XdJNcc">infrared</a> <a href="/facts/Radiometry/w9j9PXSB">radiometry</a> and <a href="/facts/Spectroscopy/mj71FuNK">spectroscopy</a>. </p>