The New International Encyclopædia/Knoblauch, Hermann

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KNOBLAUCH, knṓb'louK, Hermann (1820-95). A German physicist, born in Berlin. Having finished his studies, he became lecturer at the University of Berlin, then professor at Marburg, and in 1854 was appointed professor at the University of Halle. In 1878 he was appointed president of the Leopoldinisch-Karolinische Akademie at Halle. His publications, which are to be found mostly in the Monatsschriften of the Berlin Academy, and in the Abhandlungen der naturforschenden Gesellschaft zu Halle, treat especially of radiation of heat. He was one of the first who demonstrated that the warmth we experience when we stand before a fire reaches us in the same way as the rays of the sun, that is, by radiation, without affecting the temperature of the vacuum or the intervening material medium through which the heat is transmitted.