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Monthly Archives: December 2022

botany
Henry Nicholas Ridley and the Rubber Tree

Henry Nicholas Ridley and the Rubber Tree

Tabea Tietz
On December 10, 1855, English botanist, geologist and naturalist Henry Nicholas Ridley was born. Ridley was instrumental in introducing rubber trees in the Malay Peninsula and for his fervour in promoting it became known as “Mad Ridley”. Henry Ridley – Early Life Henry Ridley was the second son and third child born to Louisa Pole Stuart and Oliver Matthew Ridley in West Harling in Norfolk, where his father was the Rector. At…
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physics
Henry Way Kendall and the Scattering of Particles

Henry Way Kendall and the Scattering of Particles

Harald Sack
On December 9, 1926, American particle physicist and Nobel Laureate Henry Way Kendall was born. Kendall won the Nobel Prize in Physics in 1990 jointly with Jerome Isaac Friedman and Richard E. Taylor “for their pioneering investigations concerning deep inelastic scattering of electrons on protons and bound neutrons, which have been of essential importance for the development of the quark model in particle physics.” “While science and technology play critical roles in sustaining…
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mathematics
Jacques Hadamard and the Description of Mathematical Thought

Jacques Hadamard and the Description of Mathematical Thought

Harald Sack
On December 8, 1865, French mathematician Jacques Salomon Hadamard was born. Hadamard made major contributions in number theory, complex function theory, differential geometry and partial differential equations. Moreover, he is also known for his description of the mathematical though process in his book Psychology of Invention in the Mathematical Field. “It is important for him who wants to discover not to confine himself to one chapter of science, but to keep in…
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biology
Evolution is not Reversible – Louis Dollo

Evolution is not Reversible – Louis Dollo

Tabea Tietz
On December 7, 1857, French-born Belgian palaeontologist Louis Dollo was born. Dollo is best known for his work on dinosaurs. He also posited that evolution is not reversible, known as Dollo’s law. Together with the Austrian Othenio Abel, Dollo established the principles of paleobiology. Early Years Louis Dollo was born in Lille, Nord-Pas-de-Calais. At the École Centrale de Lille, Dollo studied with the Jules Gosselet and the zoologist Alfred Giard. In 1877, Louis…
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physics
George Uhlenbeck and the Electron Spin

George Uhlenbeck and the Electron Spin

Harald Sack
On December 6, 1900, Dutch-American theoretical physicist George Eugene Uhlenbeck was born. Together with with Samuel A. Goudsmit, Uhlenbeck proposed the concept of electron spin (Jan 1925) – a fourth quantum number which was a half integer. Early Life George Uhlenbeck was the son of Eugenius Uhlenbeck, who served in the Dutch East Indian Army, and Anne Beeger Uhlenbeck, the daughter of a Dutch major general. He attended the Hogere Burgerschool (High…
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aviation
The Airplanes of Glenn Luther Martin

The Airplanes of Glenn Luther Martin

Harald Sack
On December 5, 1955, American aviation pioneer Glenn Luther Martin passed away. Martin designed and built his own aircraft and was an active pilot. He founded his own aircraft company in 1912 which today through several mergers is amalgamated into the Lockheed Martin company. Early Years Glenn Luther Martin was born in Macksburg, Iowa, USA, on January 17, 1886 to Minta and Clarence Martin. At the age of two, Martin’s family moved to…
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psychology
Karen Horney’s Struggle with Neurosis

Karen Horney’s Struggle with Neurosis

Harald Sack
On December 4, 1952, German Neo-Freudian psychoanalyst Karen Horney passed away. Her theories questioned some traditional Freudian views. This was particularly true of her theories of sexuality and of the instinct orientation of psychoanalysis. She is credited with founding feminist psychology in response to Freud’s theory of penis envy.[4] She disagreed with Freud about inherent differences in the psychology of men and women, and she traced such differences to society and culture rather…
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medical science
Max von Pettenkofer – the Apostle of Good Water

Max von Pettenkofer – the Apostle of Good Water

Tabea Tietz
On December 3, 1818, Bavarian chemist and hygienist Max Joseph von Pettenkofer was born. In his early career worked on industrial chemical processes and analysis of urine and bile acids, but today he is remembered in connection with his work in practical hygiene, as an apostle of good water, fresh air and proper sewage disposal. He also developed standards for adequate ventilation in schools and hospitals. “From time to time we send our underwear to…
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history
Austerlitz – The Battle of the Three Emperors

Austerlitz – The Battle of the Three Emperors

Harald Sack
On December 2, 1805, the Battle of Austerlitz, also known as the Battle of the Three Emperors, took place. It was one of the most important and decisive engagements of the Napoleonic Wars. Widely regarded as the greatest victory achieved by Napoleon, the Grande Armée of France annihilated a larger Russian and Austrian army led by Tsar Alexander I and Holy Roman Emperor Francis II. The battle occurred near the village of…
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mathematics
G. H. Hardy and the aesthetics of Mathematics

G. H. Hardy and the aesthetics of Mathematics

Harald Sack
On December 1, 1947, English mathematician G. H. Hardy passed away. Hardy is known for his achievements in number theory and mathematical analysis, but also for his 1940 essay on the aesthetics of mathematics, A Mathematician’s Apology, and for mentoring the brilliant Indian mathematician Srinivasa Ramanujan. “A mathematician … has no material to work with but ideas, and so his patterns are likely to last longer, since ideas wear less with time…
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