Back هانز جايتل ARZ Hans Friedrich Geitel German Hans Friedrich Geitel Spanish هانس فریدریش گایتل Persian Hans Geitel Italian ハンス・フリードリヒ・ガイテル Japanese Hans Friedrich Geitel Polish Hans Geitel Portuguese Hans Friedrich Geitel Swedish
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Hans Friedrich Karl Geitel (16 July 1855 in Braunschweig – 15 August 1923 in Wolfenbüttel) was a German physicist. He is credited with coining the phrase "atomic energy."