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Luis Federico Leloir and the Metabolic Pathways of Lactose

Luis Federico Leloir and the Metabolic Pathways of Lactose

On September 6, 1906, Argentine physicist and biochemist Luis Federico Leloir was born. Leloir received the 1970 Nobel Prize in Chemistry for his discovery of the metabolic pathways in lactose, becoming only the third Argentine to receive the prestigious honor in any field. His research has led to significant progress in understanding, diagnosing and treating the congenital disease galactosemia. Leloir’s parents, Federico Leloir and Hortensia Aguirre de Leloir, both from an…
Urban Planning with Daniel H. Burnham

Urban Planning with Daniel H. Burnham

On September 4, 1846, American architect and urban designer Daniel Burnham was born. Burnham took a leading role in the creation of master plans for the development of a number of cities, including Chicago, Manila and downtown Washington, D.C. He also designed several famous buildings, including the Flatiron Building of triangular shape in New York City, Union Station in Washington D.C., the Continental Trust Company Building tower skyscraper in Baltimore,…
The Third Man – A Film Noir Masterpiece

The Third Man – A Film Noir Masterpiece

On September 2, 1949, The Third Man, directed by Carol Reed starring Orson Welles and Joseph Cotton, was officially released. Based on a novel by Graham Greene, The Third Man has become an iconic masterpiece that has been voted as the greatest British film of all time by the British Film Institute in 1999. Set in the ruins of post war Vienna it plays with the damaged history of its…
Edward Thorndike and the Law of Effect

Edward Thorndike and the Law of Effect

On August 31, 1871, American psychologist Edward L. Thorndike was born. Thorndike‘s work on Comparative psychology and the learning process led to the theory of connectionism and helped lay the scientific foundation for modern educational psychology. Edward Thorndike had a powerful impact on reinforcement theory and behavior analysis, providing the basic framework for empirical laws in behavior psychology with his Law of Effect. Thorndike, born in Williamsburg, Massachusetts, was the…
Louis Laurent Gabriel de Mortillet and Man’s Prehistoric Cultural Development

Louis Laurent Gabriel de Mortillet and Man’s Prehistoric Cultural Development

On August 29, 1821, French archaeologist and anthropologist Louis Laurent Gabriel de Mortillet was born. De Morillet was the first to organize man’s prehistoric cultural developments into a sequence of epochs. Based on the idea that older specimens of man were more primitive structurally and culturally, he created a ladder-like model of the evolution of man. This model was the basis for the idea of linear evolution of men. De…
Norman Ramsey and the Oscillatory Field Method

Norman Ramsey and the Oscillatory Field Method

On August 27, 1915, American physicist and Nobel Laureate Norman Foster Ramsey Jr. was born. Ramsey was awarded the 1989 Nobel Prize in Physics, for the invention of the separated oscillatory field method, which had important applications in the construction of atomic clocks. Norman Foster Ramsey Jr. was born in Washington, D.C., to Minna Bauer Ramsey, an instructor at the University of Kansas, and Norman Foster Ramsey, an officer in…
Hans Adolf Krebs and the Krebs Cycle

Hans Adolf Krebs and the Krebs Cycle

On August 25, 1900, German-born British physician and biochemist Hans Adolf Krebs was born. Krebs was the pioneer scientist in study of cellular respiration, a biochemical pathway in cells for production of energy. He is best known for his discoveries of two important chemical reactions in the body, namely the urea cycle and the citric acid cycle. The latter, the key sequence of metabolic reactions that produces energy in cells,…
Sir Henry Tizard – Octane Rating and Radar Technology

Sir Henry Tizard – Octane Rating and Radar Technology

On August 23, 1885, English chemist and inventor Sir Henry Thomas Tizard was born. Tizard developed the modern “octane rating” used to classify petrol, helped to develop radar in World War II, and led the first serious studies of UFOs. Henry Tizard was born in Gillingham, Kent, the only son of Thomas Henry Tizard (1839–1924), naval officer and hydrographer, and his wife, Mary Elizabeth Churchward. His ambition to join the…
Denis Pétau’s Work in Chronology

Denis Pétau’s Work in Chronology

On August 21, 1583, French Jesuit scholar Denis Pétau was born. Pétau, also known as Dionysius Petavius, was one of the most brilliant scholars in a learned age. Carrying on and improving the chronological labors of Joseph Justus Scaliger, he published in 1627 an Opus de doctrina temporum. Denis Pétau was born at Orléans, where he had his initial education. He attended the University of Paris, where he successfully defended…
Julius Lothar Meyer and the Periodic Law

Julius Lothar Meyer and the Periodic Law

On August 19, 1830, German chemist Julius Lothar Meyer was born. Meyer was one of the pioneers in developing the first periodic table of chemical elements. He discovered the Periodic Law, independently of Dmitry Mendeleev, at about the same time (1869). However, he did not develop the periodic classification of the chemical elements as thoroughly as Mendeleev. “That the as yet undivided chemical elements are absolutely irreducible substances, is currently…
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