B bábi, Tibor

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Bródy, Imre (Emeric) (Gyula, 23 December 1891 - Mühldorf, Germany, 20 December 1944) – Physicist. His higher studies were at the University of Budapest, where he earned a PhD. He first taught at a high school, thereafter became an assistant professor at the University of Budapest. Early in his career he accomplished valuable theoretical work, investigating specific heat and molecular heat. He emigrated to Germany in 1919; and for a short period he worked with Max Born as his assistant at Göttingen University. They jointly worked out the dynamic theory of crystals. He returned to Hungary in 1923 and worked for the United Incandescent Works (Egyesült Izzó), Budapest, as an engineer until the end of his life. His most important echievement was the invention of the long-life “krypton bulb”. It was well known that an incandescent body radiates its energy mostly in the form of heat and only a small part as light. By using krypton gas he developed an up-to-date lightbulb with longer life and better performance. The advantage of the krypton electric bulb was to emit more light without increased energy consumption. Its display at the Budapest Industrial Fair in 1936 was a technical sensation. He also developed a new process to ascertain the krypton content of air. Based on his experiments, the world’s first krypton factory was built in Ajka, Hungary in 1937. He died as a victim of Nazism. The Loránd Eötvös Society of Physics named a Prize after him, thus commemorating his life's work. – B: 0883, 1279, T: 7674, 7103.

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