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Harald Sack

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Otto the Great – Founder of the Holy Roman Empire

Otto the Great – Founder of the Holy Roman Empire

Harald Sack
On November 23, 912 AD, Otto I, also referred to as Otto the Great, emperor of the Holy Roman Empire and founder of the Ottonian dynasty of German emperors, was born as the oldest son of the Duke of Saxony Henry the Fowler (“Heinrich, der Vogler” referring to a German poem „Herr Heinrich sitzt am Vogelherd…“ by Johann Nepomuk Vogl, 1835 [1]) and his second wife Matilda of Ringelheim. By the time of…
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mathematics
Benoît Mandelbrot and the Beauty of Mathematics

Benoît Mandelbrot and the Beauty of Mathematics

Harald Sack
On November 20, 1924, French American mathematician Benoît B. Mandelbrot was born. Mandelbrot worked on a wide range of mathematical problems, including mathematical physics and quantitative finance, but is best known as the popularizer of fractal geometry. He was the one who coined the term ‘fractal’ and described the Mandelbrot set named after him. “Clouds are not spheres, mountains are not cones, coastlines are not circles, and bark is not smooth, nor does…
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literature
Anna Seghers – Prominent Advocate of German Exile Literature

Anna Seghers – Prominent Advocate of German Exile Literature

Harald Sack
On November 19, 1900, German writer Anna Seghers was born. Seghers became famous for depicting the moral experience of the Second World War. I came across the writer at the end high school. “The Seventh Cross” of Anna Seghers was the last piece of literature that we officially had to read in the German literature courses before high school graduation. And I remember that I was rather impressed by this novel. “What…
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history
The Brothers Grimm and the Göttingen Seven

The Brothers Grimm and the Göttingen Seven

Harald Sack
On November 18, 1837, a group of 7 university professors from the University of Göttingen protested against the abolition or alteration of the constitution of the Kingdom of Hanover by Ernest Augustus and refused to swear an oath to the new king of Hanover. The Göttingen Seven (in German “Göttinger Sieben“) were led by Friedrich Christoph Dahlmann, who himself was one of the key advocates of the unadulterated constitution. The other six were…
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mathematics
Jean Baptiste le Rond d’Alembert and the Great Encyclopedy

Jean Baptiste le Rond d’Alembert and the Great Encyclopedy

Harald Sack
On November 16, 1717, French mathematician, mechanician, physicist, philosopher, and music theorist Jean Baptiste le Rond d’Alembert was born. He was one of the most important mathematicians and physicists of the 18th century and a philosopher of the Enlightenment.  Probably he is best known as co-editor with Denis Diderot of the famous Encyclopédie, edited between 1751 and 1772.[5] “Nothing is more incontestable than the existence of our sensations; …” — Jean Baptiste le Rond d’Alembert,…
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communication
The Creation of the First Web Page

The Creation of the First Web Page

Harald Sack
On November 13, 1990, one day after Tim Berners-Lee‘s and Robert Cailliau‘s publication of the concept of a world wide hypertext system [2], the first web page was created.[1] Today, everyday life without the World Wide Web, or simply the Web, has become next to impossible. Our daily live depends on news being spread over the web and ecommerce has become a convenient commodity. Nobody wants to live without it. Incredible, but only 25…
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history
Martin Luther – Iconic Figure of the Reformation

Martin Luther – Iconic Figure of the Reformation

Harald Sack
On November 10, 1483, Martin Luther, monk, priest, professor of theology and iconic figure of the Protestant Reformation was born. “Be a sinner, and let your sins be strong (sin boldly), but let your trust in Christ be stronger, and rejoice in Christ who is the victor over sin, death, and the world” — Martin Luther, from a letter Youth and Education As eldest of seven children of Hans Luther and his wife…
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communication
Hedy Lamarr – a Hollywood Star Invents Secure Communication Technology

Hedy Lamarr – a Hollywood Star Invents Secure Communication Technology

Harald Sack
On November 9, 1913, Hollywood movie star Hedy Lamarr was born, co-inventor of an early form of the spread spectrum communication and frequency hopping, necessary for wireless communication from the pre-computer age to the present day. Hedy Lamarr – Family Background Ok, I assume that you are not necessarily familiar with spread spectrum communications technology. But, maybe you are wondering even more about a movie star diva of Hollywood’s Golden Age, who should be…
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physics
Konrad Lorenz and the Study of Instinctive Behavior of Animals

Konrad Lorenz and the Study of Instinctive Behavior of Animals

Harald Sack
On November 7, 1903, Austrian zoologist, ethologist, and ornithologist Konrad Lorenz was born. Lorenz is regarded as one of the main representatives of classical comparative behavioral research (ethology). He himself called this field of research “animal psychology” until 1949. “The competition between human beings destroys with cold and diabolic brutality…. Under the pressure of this competitive fury we have not only forgotten what is useful to humanity as a whole, but even…
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history
Alois Senefelder revolutionized Printing Technology

Alois Senefelder revolutionized Printing Technology

Harald Sack
On November 6, 1771, Alois Senefelder, actor, playwright, and inventor of the lithographic printing technology was born. Background and Early Career Senefelder was the son of Franz Peter Sennfelder, a Munich court actor from Königshofen in Franconia, and his wife Katharina, née von Volk. Senefelder was born in Prague because his parents gave guest performances there. The young Senefelder studied at Munich and received a scholarship, which enabled him to study jurisprudence…
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