Theodore von Kármán

Theodore von Kármán was a Hungarian-American mathematician, aerospace engineer, and physicist who worked in aeronautics and astronautics. He was responsible for crucial advances in aerodynamics characterizing supersonic and hypersonic airflow. The defined threshold of outer space is named the "Kármán line" in recognition of his work. Kármán is regarded as an outstanding aerodynamic theoretician of the 20th century.