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The Philosophy of Ludwig Wittgenstein

The Philosophy of Ludwig Wittgenstein

On April 26, 1889, Austrian-British philosopher Ludwig Wittgenstein was born. He worked primarily in logic, the philosophy of mathematics, the philosophy of mind, and the philosophy of language. He is considered one of the world‘s most famous philosophers. Wittgenstein‘s influence has been felt in nearly every field of the humanities and social sciences. “My work consists of two parts: of the one which is here, and of everything which I have not…
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Félix d’Herelle and the Bacteriophages

Félix d’Herelle and the Bacteriophages

On April 25, 1873, French-Canadian microbiologist Félix d’Herelle was born. D’Herelle was co-discoverer of bacteriophages (viruses that infect bacteria) and experimented with the possibility of phage therapy. D’Herelle has also been credited for his contributions to the larger concept of applied microbiology. Early Years as Autodidact Félix D’Hérelle was born in Paris, France. He attended l’Ecole Monge (Lycée Condorcet) and then the Lycée Louis-le-Grand in Paris. His father, who was 30 years…
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How Anthony Trollope invented the Red Postal Box

How Anthony Trollope invented the Red Postal Box

On April 24, 1815, English novelist of the Victorian era Anthony Trollope was born. Trollope wrote novels on political, social, and gender issues, and other topical matters. Among his best-known works is a series of novels collectively known as the Chronicles of Barsetshire, which revolves around the imaginary county of Barsetshire. He furthermore introduced the familiar red pillar boxes in Britain as street-side receptacles of letters for collection by the Post Office.…
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William Turner – Romantic Preface to Impressionism

William Turner – Romantic Preface to Impressionism

Probably on April 23, 1775, (and baptized May 14, 1775) English Romanticist landscape painter Joseph Mallord William Turner was born. Turner was considered a controversial figure in his day, but is now regarded as the artist who elevated landscape painting to an eminence rivalling history painting. Although renowned for his oil paintings, Turner is also one of the greatest masters of British watercolour landscape painting commonly known as “the painter of light“. His…
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The Case of J. Robert Oppenheimer

The Case of J. Robert Oppenheimer

On April 22, 1904, American physicist J. Robert Oppenheimer was born. Oppenheimer was the wartime head of the Los Alamos Laboratory and is among those who are credited with being the “father of the atomic bomb” for their role in the Manhattan Project, the World War II undertaking that developed the first nuclear weapons. Oppenheimer‘s achievements in physics included the Born–Oppenheimer approximation for molecular wave functions, work on the theory of electrons…
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John Muir and the U.S. National Park System

John Muir and the U.S. National Park System

On April 21, 1838, Scottish-American naturalist and author John Muir was born. He was an early advocate of preservation of wilderness in the United States. His letters, essays, and books telling of his adventures in nature, especially in the Sierra Nevada mountains of California, have been read by millions. His activism helped to preserve the Yosemite Valley, Sequoia National Park and other wilderness areas. John Muir – Early Years John Muir was…
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James David Forbes – Seismology and the Conduction of Heat

James David Forbes – Seismology and the Conduction of Heat

On April 20, 1809, Scottish physicist and glaciologist James David Forbes was born. Forbes worked extensively on the conduction of heat and seismology. He conducted experiments on the temperature of the Earth at different depths and in different soils near Edinburgh. Later he investigated the laws of heat conduction in bars and invented the seismometer. “I thank God humbly and sincerely. God, who has visited us with many trials, and led us…
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Paolo Veronese and the Venetian painting of the Late Renaissance

Paolo Veronese and the Venetian painting of the Late Renaissance

On April 19, 1588, Italian Renaissance painter Paolo Veronese passed away. The Venetian painter is best known for extremely large history paintings of religion and mythology. Together with Titian and Tintoretto, Veronese is one of the “great trio that dominated Venetian painting of the cinquecento” and the Late Renaissance in the 16th century. “We painters use the same license as poets and madmen.” – Paolo Veronese, Testimony to the Inquisition in Venice (18…
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Paul-Émile Lecoq de Boisbaudran and the Improvement of Spectroscopy

Paul-Émile Lecoq de Boisbaudran and the Improvement of Spectroscopy

On April 18, 1838, French chemist Paul-Émile Lecoq de Boisbaudran was born. Lecoq de Boisbaudran improved spectroscopic methods which had recently been developed by Paul Kirchhoff. Furthermore he is known for his discoveries of the chemical elements gallium, samarium and dysprosium. Paul-Émile Lecoq de Boisbaudran – Early Years Paul-Émile Lecoq de Boisbaudran belonged to the ancient Protestant nobility of Poitou and Angoumois, whose considerable fortune, however, disappeared after the revocation of the Edict of…
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Clarence Mackay connected the World

Clarence Mackay connected the World

On April 17, 1874, American financier Clarence Hungerford Mackay was born. Mackay was chairman of the board of the Postal Telegraph and Cable Corporation and president of the Mackay Radio and Telegraph Company. He supervised the completion of the first transpacific cable between the United States and the Far East in 1904. He laid a cable between New York and Cuba in 1907 and later established cable communication with southern Europe via the…
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