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Enabling Radio Broadcast of Sound – Lee De Forest and the Audion

Enabling Radio Broadcast of Sound – Lee De Forest and the Audion

Tabea Tietz
On August 26, 1873, American inventor Lee de Forest was born. He is credited more than 180 patents. In 1906, de Forest invented the Audion, the first triode vacuum tube and the first electrical device which could amplify a weak electrical signal and make it stronger, making radio broadcasting, television, and long-distance telephone service possible, among many other applications. Lee De Forest – A Young Inventor Lee De Forest was born in Iowa to…
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paleontology
Meet Sue, the Dinosaur

Meet Sue, the Dinosaur

Harald Sack
Usually, in our articles we focus on a person, a development, an invention, or an decisive moment in history. Today, a long dead animal will be the protagonist of our post. But, it’s the story of an extraordinary finding. On August 12, 1990, Sue, largest, most extensive and best preserved Tyrannosaurus rex specimen ever found found up to date, was discovered by Sue Hendrickson in South Dakota. Sure, all kids love dinosaurs. When I was…
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computer science
Marvin Minsky and Artificial Neural Networks

Marvin Minsky and Artificial Neural Networks

Harald Sack
On August 9, 1927, American biochemist and the founder of the MIT Artificial Intelligence Project Marvin Minsky was born. He is also known for his foundational work in the analysis of artificial neural networks. “Once the computers got control, we might never get it back. We would survive at their sufferance. If we’re lucky, they might decide to keep us as pets.” – Marvin Minsky, Life Magazine (20 November 1970), p. 68…
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psychology
Rensis Likert and the Likert Scale Method

Rensis Likert and the Likert Scale Method

Harald Sack
On August 5, 1903, American social psychologist Rensis Likert was born. Likert is primarily known for developing the Likert scale method, an approach to creating a psychometrically sound scale based on responses to multiple questions or “items.” Likert’s method has become a time-honored way to measure people’s reactions such as to opinion surveys as well as personality tests. “A number of statistical assumptions are made in the application of his (Thurstone’s) attitude…
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astronomy
Maria Mitchell and “Miss Mitchell’s Comet”

Maria Mitchell and “Miss Mitchell’s Comet”

Harald Sack
On August 1, 1814, American astronomer Maria Mitchell was born who, in 1847, by using a telescope, discovered a comet which as a result became known as “Miss Mitchell’s Comet“. „We especially need imagination in science. It is not all mathematics, nor all logic, but is somewhat beauty and poetry.” – Maria Mitchell Maria Mitchell – Youth and Education Maria Mitchell was born in Nantucket, Massachusetts, USA, among nine brothers and sisters…
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chemistry
Stephanie Kwolek and the Bullet-proof Vests

Stephanie Kwolek and the Bullet-proof Vests

Tabea Tietz
On July 31, 1923, American polymer chemist Stephanie Louise Kwolek was born. She is best known for her invention of poly-paraphenylene terephthalamide – better known as Kevlar. Stephanie Kwolek – Becoming a Chemist Stephanie Kwolek was born to Polish immigrant parents in the Pittsburgh suburb of New Kensington, Pennsylvania. Her father, John Kwolek died when she was ten years old. She inherited her love for fabrics and sewing from her mother. Before thinking…
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explorer
Joseph Nicollet and the Upper Mississippi River

Joseph Nicollet and the Upper Mississippi River

Harald Sack
On July 24, 1786, French geographer, astronomer, and mathematician Joseph Nicolas Nicollet was born. He is best known for mapping the Upper Mississippi River basin during the 1830s. Nicollet’s maps were among the most accurate of the time and they provided the basis for all subsequent maps of the American interior. Jean-Nicholas Nicollet – Building up a Reputation Jean-Nicolas Nicollet was born in Cluses, Savoy, France. He was very bright, showing aptitude in mathematics and…
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physics
Emil Jannings and the Very First Academy Award

Emil Jannings and the Very First Academy Award

Harald Sack
On July 23, 1884, German actor Emil Jannings was born. Jannings is best known for his collaborations with F. W. Murnau [2] and Josef von Sternberg, including 1930’s The Blue Angel, with Marlene Dietrich. He was the first Oscar recipient, honored with the Academy Award for Best Actor at the 1929 ceremony. Jannings is the only German ever to have won that award. “We can only realize the shadows of our dreams.” –…
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physics
Lion Feuchtwanger and his Ardous Path of Knowledge

Lion Feuchtwanger and his Ardous Path of Knowledge

Harald Sack
On July 7, 1884, German-Jewish novelist and playwright Lion Feuchtwanger was born. A prominent figure in the literary world of Weimar Germany, he is best known today for his novel Jud Süß and is considered one of the most widely read German-language authors of the 20th century, whose work influenced contemporary playwrights such as Bertolt Brecht.[1] “Thoughts about what you should have done and what you shouldn’t have done, they lead nowhere.” …
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engineering
Rube Goldberg’s complicated Machines

Rube Goldberg’s complicated Machines

Harald Sack
On July 4, 1883, American cartoonist, sculptor, author, engineer and inventor Reuben Garrett Lucius “Rube” Goldberg was born. He is best known for a series of popular cartoons depicting complicated gadgets that perform simple tasks in indirect, convoluted ways. Goldberg received many honors in his lifetime, including a Pulitzer Prize for his political cartooning in 1948. From the Sewer Department to a Newspaper Reuben Lucius Goldberg was born July 4, 1883, in San…
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