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==Discoveries==
==Discoveries==
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His specialty was [[nuclear energy]], both fission and fusion. He discovered the Jahn-Teller Effect in 1939, describing the geometrical distortion of electron clouds undergo in chemical reactions of metals he also helped develop the the Brunauer-Emmett-Teller (BET) isotherm for surface physics and chemistry.
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His specialty was [[nuclear energy]], both fission and fusion. He discovered the Jahn-Teller Effect in 1939, describing the geometrical distortion of electron clouds undergo in chemical reactions of metals he also helped develop the Brunauer-Emmett-Teller (BET) isotherm for surface physics and chemistry.