Germany

Wilhelm Pfeffer and Plant Physiology

Wilhelm Pfeffer and Plant Physiology

On March 9, 1845, German botanist and plant physiologist Wilhelm Pfeffer was born. Pfeffer’s work on osmotic pressure made him a pioneer in the study of plant physiology. With Julius von Sachs, he was a leader in systematizing the fundamentals of plant physiology. Wilhelm Pfeffer attended the University of Göttingen studying…
Richard Brauer and the Theory of Algebra

Richard Brauer and the Theory of Algebra

On February 10, 1901, German and American mathematician Richard Dagobert Brauer was born. Brauer worked mainly in abstract algebra, but made important contributions to number theory. He was the founder of modular representation theory. Richard Brauer was born in Charlottenburg, a district of Berlin, Germany, which was not incorporated into…
Ernst Heinkel and His Aircraft

Ernst Heinkel and His Aircraft

On January 24, 1888, German aircraft designer an manufacturer Ernst Heinkel was born. Heinkel’s company Heinkel Flugzeugwerke produced the Heinkel He 178, the world’s first turbojet aircraft and jet plane, and the Heinkel He 176, the first rocket aircraft. Ernst Heinkel was apprenticed as machinist at a foundry and later studied at…
Heinrich Barkhausen and the Barkhausen Effect

Heinrich Barkhausen and the Barkhausen Effect

On December 2, 1881, German physicist Heinrich Barkhausen was born. Barkhausen discovered the Barkhausen effect (1919), a principle concerning changes in the magnetic properties of metal. With K. Kurz, he invented the Barkhausen-Kurz oscillator, the first vacuum tube electronic oscillator to use electron transit-time effects. Heinrich Barkhausen studied at the Technical…
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