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economics
When Money Buys Little – the Hyperinflation of the Weimar Republic

When Money Buys Little – the Hyperinflation of the Weimar Republic

Tabea Tietz
Mid November 1923, the Hyperinflation of the Weimar Republic reached its peak. Due to Germany’s obligation to pay large reparations after World War I, a hyperinflation was induced reaching its peak in November 1923, when the American dollar was worth 4,210,500,000,000 German marks. “The bloody uproar of the war is over: let’s enjoy the carnival of the inflation. It’s loads of fun and paper, printed paper, flimsy stuff – do they still call…
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medical science
Dorothea Erxleben – Germany’s First Female Medical Doctor

Dorothea Erxleben – Germany’s First Female Medical Doctor

Tabea Tietz
On November 13, 1715, Dorothea Christiane Erxleben, first female medical doctor in Germany was born. It was very hard for her to overcome the prejudices of the University professors and to finish her studies with a proper examination. What is even worse is that it should take until 1901 that the second woman in Germany was able to make her exams as a doctor. Dorothea Leporin – Youth and Education Dorothea Leporin was born as…
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mathematics
Felix Hausdorff and the Basic Principles of Set Theory

Felix Hausdorff and the Basic Principles of Set Theory

Harald Sack
On November 8, 1868, German mathematician Felix Hausdorff was born. He is considered a co-founder of general topology and made significant contributions to general and descriptive set theory, measure theory, functional analysis and algebra. In addition to his profession, he also worked as a philosophical writer and literary figure under the pseudonym Paul Mongré. Felix Hausdorff – Early Years Felix Hausdorff was born in Breslau, Kingdom of Prussia, today Wroclaw in Poland. Hausdorff’s…
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aviation
Alexander Lippisch and the Delta Wing Design

Alexander Lippisch and the Delta Wing Design

Tabea Tietz
On November 2, 1894, German pioneer of aerodynamics and aviation Alexander M. Lippisch was born. He made important contributions to the understanding of flying wings, delta wings and the ground effect. His designs of tailless and delta-winged aircraft in the 1920s and 1930s were important in the development of high-speed jet and rocket airplanes. His most famous design is the Messerschmitt Me 163 rocket-powered interceptor. Alexander Lippisch – First Aircraft Designs Alexander…
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photography
Oskar Barnack – the Father of 35mm Photography

Oskar Barnack – the Father of 35mm Photography

Harald Sack
On November 1, 1879, German optical engineer, precision mechanic, and industrial designer Oskar Barnack was born. He is often referred to as the father of 35 mm photography for his invention of the first miniature commercially successful camera, the Leica. In the age of digital photography, something like 35 mm film might seem like some forgotten relict. But, it really was a revolution that brought photography too the masses – in the…
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chemistry
Adolf von Baeyer and the Synthesis of Indigo

Adolf von Baeyer and the Synthesis of Indigo

Tabea Tietz
On October 31, 1835, German chemist and Nobel Laureate Johann Friedrich Wilhelm Adolf von Baeyer was born. He was the first who succeeded with the synthesis of indigo (1880) and formulated its structure (1883), for which he was awarded the Nobel Prize for Chemistry in 1905. Adolf von Baeyer – Academic Career Adolf Baeyer was a son of the officer and geodesist Johann Jacob Baeyer and Eugenie Hitzig, daughter of the publisher and…
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astronomy
The Planetary Tables of Erasmus Reinhold

The Planetary Tables of Erasmus Reinhold

Harald Sack
On October 22, 1511, German astronomer and mathematician Erasmus Reinhold was born. He is considered to be the most influential astronomical pedagogue of his generation. Furthermore, he is best known for his carefully calculated first set of planetary tables applying Copernican theory, published in 1551. Erasmus Reinhold Background Erasmus Reinhold was born and died in Saalfeld, Thuringia, Germany. His father Johannes Reinhold was a tax collector. In 1530 went to Wittenberg to study at…
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astronomy
Heinrich Olbers and the Olbers’ Paradox

Heinrich Olbers and the Olbers’ Paradox

Harald Sack
On October 11, 1758, German physician and astronomer Heinrich Wilhelm Matthias Olbers was born. Besides his discovery of comets and minor planets, Olbers is best known for his new method to calculate the velocity of falling stars. Maybe you have also heard of the famous Olbers’ paradox, which asks “why is the night sky dark if there are so many bright stars all around to light it?” Heinrich Olbers Background Heinrich Olbers was born…
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physics
Max von Laue and the Diffraction of X-Rays in Crystals

Max von Laue and the Diffraction of X-Rays in Crystals

Harald Sack
On October 9, 1879, German physicist Max von Laue was born. Von Laue received the Nobel Prize in Physics in 1914 for his discovery of the diffraction of X-rays by crystals. “In the beginning was mechanics.” – Max von Laue (1950). History of physics Max von Laue – Early Years Max von Laue was born in Pfaffendorf, near Koblenz, Germany. His parents were Julius Laue (1848-1927), a Prussian real secret war councilor…
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biology
Rudolf Leuckart and his Research in Parasitology

Rudolf Leuckart and his Research in Parasitology

Harald Sack
On October 7, 1822, German zoologist Karl Georg Friedrich Rudolf Leuckart was born. He is known to be one of the initiators of modern parasitology. Leuckart described the complicated life histories of various parasites, including tapeworms and the liver fluke, and demonstrated that some human diseases, such as trichinosis, are caused by multicellular animals of the various wormlike phyla. “Nowhere is it more true that “prevention is better than cure,” than in the case of…
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