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Harald Sack

art
Piero della Francesca and the Use of Geometric Forms and Perspective

Piero della Francesca and the Use of Geometric Forms and Perspective

Harald Sack
On October 12, 1492, Early Renaissance painter Piero della Francesca passed away. His painting is characterized by its serene humanism, its use of geometric forms and perspective. Piero della Franchesca – Early Years Piero della Franchesca probably spent his education and youth in Florence, where in the 1430s a bright, pastel coloration was cultivated, which was also propagated by Leon Battista Alberti in his painting treatise (trattato della pittura) in 1435. Above…
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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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cinematography
You Ain’t Heard Nothin’ Yet – The Movies started Talking

You Ain’t Heard Nothin’ Yet – The Movies started Talking

Harald Sack
On October 6, 1927, the first feature-length motion picture with synchronized dialogue sequences, The Jazz Singer premiered. With its Vitaphone sound-on-disc system it heralded the commercial ascendance of the “talkies” and the decline of the silent film era. The Advent of the Talkies We all know that it started with the silent films already at the end of the 19th century as a simple and innocent fairground attraction. In silent films for entertainment…
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space
Robert Goddard – the Man who ushered in the Space Age

Robert Goddard – the Man who ushered in the Space Age

Harald Sack
On October 5, 1882, American physicist, and inventor Robert Hutchins Goddard was born. He is credited with creating and building the world’s first liquid-fueled rocket, which he successfully launched on March 16, 1926. Goddard’s work as both theorist and engineer anticipated many of the developments that were to make spaceflight possible. He has been called the man who ushered in the Space Age. Moreover, I’m pretty sure that you have heart of the Goddard…
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medical science
How James Lind, a Pioneer of Clinical Trials, Developed a Cure for Scurvy

How James Lind, a Pioneer of Clinical Trials, Developed a Cure for Scurvy

Harald Sack
On October 4, 1714, Scottish physician James Lind was born. He was a pioneer of naval hygiene in the Royal Navy. By conducting the first ever clinical trial, he developed the theory that citrus fruits cured scurvy. His work advanced the practice of preventive medicine and improved nutrition. James Lind – Early Years James Lind was born in Edinburgh, Scotland, to Margaret (Smelum) and James Lind, a prosperous merchant whose wife had medical…
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chemistry
Sir William Ramsay and the Discovery of Noble Gases

Sir William Ramsay and the Discovery of Noble Gases

Harald Sack
On October 2, 1852, Scottish chemist Sir William Ramsay was born. Ramsay discovered the noble gases and received the Nobel Prize in Chemistry in 1904 “in recognition of his services in the discovery of the inert gaseous elements in air” along with his collaborator, John William Strutt, 3rd Baron Rayleigh, who received the Nobel Prize in Physics that same year for their discovery of argon.[1] “But I am leaving the regions of…
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communication
The Unfortunate Inventions of Charles Cros

The Unfortunate Inventions of Charles Cros

Harald Sack
On October 1, 1842, French poet and inventor Charles Cros was born. He developed various improved methods of photography including an early color photo process. He also invented improvements in telegraph and paleophone technology. But lacking financial resources, he was unable to patent his devices before Thomas Edison and others developed the idea and started production. From the Telegraph to Color Photography Émile-Hortensius-Charles Cros was born in Fabrezan, Aude, France, 35km to the…
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philosophy
Étienne de Condillac and the Importance of Language in Logical Reasoning

Étienne de Condillac and the Importance of Language in Logical Reasoning

Harald Sack
On September 30, 1714, French philosopher and epistemologist Étienne Bonnot de Condillac was born. A leading advocate in France of the ideas of John Locke de Condillac further emphasized the importance of language in logical reasoning, stressing the need for a scientifically designed language and for mathematical calculation as its basis.[4] “The art of reasoning is nothing more than a language well arranged.” – Étienne de Condillac, as quoted in [5]  Étienne de Condillac…
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