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physics
Surely You’re Joking, Mr. Feynman

Surely You’re Joking, Mr. Feynman

Harald Sack
On May 11, 1918, famous physicist and nobel laureate Richard Feynman was born. Ever since my first days at university, Feynman has been one of my absolute heroes of science. I’ve heard  his name for the first time back in high school, when we learned about Feynman diagrams and I have had heard about his famous physics lectures. But when I had the chance to read his autobiographical book “Surely you’re joking Mr. Feynman…
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astronomy
Carl Friedrich Gauss – The Prince of Mathematicians

Carl Friedrich Gauss – The Prince of Mathematicians

Harald Sack
On April 30, 1777, German mathematician and physical scientist Carl Friedrich Gauss was born. He contributed significantly to many fields, including number theory, algebra, statistics, analysis, differential geometry, geodesy, geophysics, electrostatics, astronomy and optics. He is often referred to as Princeps mathematicorum (Latin, “the Prince of Mathematicians”) as well as “greatest mathematician since antiquity”. “Mathematics is the Queen of Science, and Arithmetic is the Queen of Mathematics” – handed down in Wolfgang Sartorius…
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physics
Heike Kamerlingh Onnes and Superconductivity

Heike Kamerlingh Onnes and Superconductivity

Tabea Tietz
On April 8, 1911, Dutch physicist and Nobel Laureate Heike Kamerlingh Onnes found that at a temperature of only 4.2 K (-269° C) the resistance in a solid mercury wire immersed in liquid helium suddenly vanished. Kamerlingh Onnes discovered superconductivity. „Door meten tot weten“ – “Through measurement to knowledge” – Motto of Kamerlingh Onnes’ Laboratory Early Years Born in Groningen, Netherlands, Kamerlingh Onnes also attended the city’s university and studied under the famous…
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computer science
Rudy Rucker – Infinity and the Mind

Rudy Rucker – Infinity and the Mind

Harald Sack
On March 22, 1946, American mathematician, computer scientist, science fiction author, and philosopher Rudolph von Bitter Rucker, better known as Rudy Rucker, was born. He is also one of the founders of the cyberpunk literary movement. “The space of our universe is the hypersurface of a vast expanding hypersphere.” – Rudy Rucker, The Sex Sphere (1983) Youth and Education Rucker was born and raised in Louisville, Kentucky, where his father Embry Cobb Rucker,…
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astronomy
Nicolaus Copernicus and the Heliocentric Model

Nicolaus Copernicus and the Heliocentric Model

Harald Sack
On February 19, 1473, Renaissance mathematician and astronomer Nicolaus Copernicus was born, who established the heliocentric model, which placed the Sun, rather than the Earth, at the center of the universe. With the publication of his research he started the so-called Copernican Recolution, which started a paradigm shift away from the former Ptolemaic model of the heavens, which postulated the Earth at the center of the universe, towards the heliocentric model with the…
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communication
All the World’s Knowledge – Wikipedia

All the World’s Knowledge – Wikipedia

Harald Sack
On January 15, 2001, the online encyclopedia Wikipedia was officially launched by Jimmy Wales and Larry Sanger. Wikipedia‘s 55,001,389 articles in 325+ languages, including more than 6 million articles in the English Wikipedia (as of January 2022 [10]), are written collaboratively by volunteers around the world. It is the largest and most popular general reference work on the Internet. Encyclopedias from the Print to the Web Do you remember how life was before there was…
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astronomy
Giovanni Domenico Cassini and the Moons of Saturn

Giovanni Domenico Cassini and the Moons of Saturn

Harald Sack
On December 23, 1672, Italian astronomer Giovanni Domenico Cassini discovered Rhea, the 2nd largest of the 62 Saturn moons that are known by today. Background and Education Giovanni Cassini Cassini was born in Perinaldo (Liguria) on June 8, 1625. He married the rich Geneviève de Laistre, became a French citizen in 1673 and began to write his first name Jean-Dominique. Cassini studied at the Jesuit College in Genoa and Bologna. Through the…
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astronomy
Tycho Brahe – The Man with the Golden Nose

Tycho Brahe – The Man with the Golden Nose

Harald Sack
On December 14, 1546, Danish nobleman and astronomer Tycho Brahe, known for his accurate and comprehensive astronomical and planetary observations was born. “Non haberi, sed esse.” “Not shine, but be.” – Tycho Brahe’s Election slogan Background Tycho Brahe was born at Knutstorp Castle, Scania, at that time Denmark, into a politically powerful family of noblemen and political advisors. He grew up with his uncle, also a nobleman, who supplied his nephew with a…
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physics
Christian Doppler and the Doppler Effect

Christian Doppler and the Doppler Effect

Harald Sack
On November 29, 1803, Christian Johann Doppler, Austrian Physicist and mathematician was born in Salzburg. Doppler is widely known for his principle, the Doppler effect, that the observed frequency of a wave depends on the relative speed of the source and the observer. He used this concept to explain the color of binary stars. “There have been applied sciences throughout the ages. … However this so-called practice was not much more than paper…
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philosophy
You are either a Spinozist or not a Philosopher at all

You are either a Spinozist or not a Philosopher at all

Harald Sack
On November 24, 1632, Jewish-Dutch philosopher of Portuguese Sephardi origin Baruch Spinoza was born. By laying the groundwork for the Enlightenment and modern biblical criticism, including modern conceptions of the self and the universe, Spinoza came to be considered one of the great rationalists of 17th-century philosophy. “Beauty, my dear Sir, is not so much a quality of the object beheld, as an effect in him who beholds it. If our sight…
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