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Harald Sack

communication
Charles Wheatstone – From the Concertina to the Telegraph

Charles Wheatstone – From the Concertina to the Telegraph

Harald Sack
On February 6, 1802, Charles Wheatstone, English scientist and inventor of many scientific breakthroughs of the Victorian era was born. He is well known for his research in acoustics, electricity, and telegraphy. Family Background and Early Youth Well, if you don’t happen to be an engineer or a physicist, then you have probably never heard of Charles Wheatstone. But we will show you that he was really some remarkable fellow. Charles Wheatstone was born…
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astronomy
Mariner 10 and the Swing-By at Planet Venus

Mariner 10 and the Swing-By at Planet Venus

Harald Sack
On February 5, 1974, space probe Mariner 10 passed by at planet Venus shooting 4,165 high resolution pictures and continued its journey to Mercury, using the slingshot maneuver. The Mariner Program Mariner 10 was the last of NASA‘s Mariner program and executed to measure the environment of Mercury as well as its surface and its atmosphere. The spacecraft was the second of all time to perform the gravitational slingshot maneuver, using Venus to…
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literature
James Joyce and Literary Modernism

James Joyce and Literary Modernism

Harald Sack
On February 2, 1882, Irish novelist and poet James Joyce was born, who is considered to be one of the most influential writers in the modernist avant-garde of the early 20th century. Joyce is best known for his Ulysses, a landmark work in which the episodes of Homer‘s Odyssey are paralleled in an array of contrasting literary styles. “Stately, plump Buck Mulligan came from the stairhead, bearing a bowl of lather on…
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medical science
Oswald Avery and the Avery-McLeod-McCarthy Experiment

Oswald Avery and the Avery-McLeod-McCarthy Experiment

Harald Sack
On February 1, 1944, physician and medical researcher Oswald Avery together with his colleagues Colin MacLeod and Maclyn McCarty announced that DNA is the hereditary agent in a virus that would transform a virus from a harmless to a pathogenic version. This study was a key work in modern bacteriology. Prelude – The Griffith Experiment The achievement by the scientists Avery, MacLeod, and McCarty were based on Frederick Griffith’s studies on bacteria,…
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architecture
Gustav Eiffel Has Gone Mad – The Construction of the Eiffel Tower

Gustav Eiffel Has Gone Mad – The Construction of the Eiffel Tower

Harald Sack
On January 28, 1887, French engineer Gustave Eiffel started construction work of his famous eponymous Tower in Paris. Finished 26 months later in March 1889 as the entrance arch to the 1889 World’s Fair, it has become both a global cultural icon of France and one of the most recognizable structures in the world. Until today, the tower is the tallest structure in Paris and the most-visited paid monument in the world; 7.1…
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mathematics
Arthur Cayley and his Love for Pure Mathematics

Arthur Cayley and his Love for Pure Mathematics

Harald Sack
On January 26, 1895, British mathematician Arthur Cayley passed away. He was the first to define the concept of a group in the modern way and helped to found the modern British school of pure mathematics. “As for everything else, so for a mathematical theory: beauty can be perceived but not explained. “ — Arthur Cayley, President’s address (1883) to the British Association for the Advancement of Science, in [13] Arthur Cayley –…
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literature
Wicked Lord Byron’s Wonderful Poetry

Wicked Lord Byron’s Wonderful Poetry

Harald Sack
On January 22, 1788, George Gordon Noel Byron, 6. Baron Byron of Rochdale, commonly known simply as Lord Byron, English poet and a leading figure in the Romantic movement was born. I remember to have learned about Lord Byron back at school with his lengthy narrative poems like Childe Harold’s Pilgrimage or the shorter and much more beautiful poem “She Walks in Beauty“. Anyway, Byron is considered one of the greatest British poets…
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history
Johannes Diodato opens Vienna’s first Coffeehouse

Johannes Diodato opens Vienna’s first Coffeehouse

Harald Sack
On January 17, 1685, Armenian merchant Johannes Diodato (Johannes Theodat) was granted the privilege to serve coffee in the city of Vienna, the former capital of the Holy Roman empire. Thereby, Johannes Diodato opened the very first coffeehouse in Vienna and the habit of coffee drinking soon spread over Europe. Science and Coffee Of course we all know coffee. But, not all of us really do love coffee. Before starting my work in…
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history
J’Accuse – Émile Zola and the Dreyfus Affaire

J’Accuse – Émile Zola and the Dreyfus Affaire

Harald Sack
On January 13, 1898, French novelist Émile Zola published an open letter in the newspaper L’Aurore entitled “J’accuse” (“I accuse”, or, in context, “I accuse you”). In the letter, Zola addressed the President of France Félix Faure, and accused the government of anti-Semitism and the unlawful jailing of Alfred Dreyfus, a French Army General Staff officer sentenced to penal servitude for life for espionage. The Suspicious Bordereau Alfred Dreyfus was born in 1859 in the…
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computer science
Joseph Weizenbaum and his famous Eliza

Joseph Weizenbaum and his famous Eliza

Harald Sack
On January 8, 1923, computer scientist Joseph Weizenbaum, a pioneer in natural language processing and artificial intelligence, who later became one of artificial intelligence’s leading critics, was born. In 1966 he published a simple program named Eliza, which involved its users in a conversation that bore a striking resemblance to one with a psychologist. Joseph Weizenbaum – Early Years Joseph Weizenbaum was born in Berlin the son of master furrier Jechiel Weizenbaum…
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