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James van Allen and the Weather in Space

James van Allen and the Weather in Space

Tabea Tietz
On September 7, 1914, astrophysicist and space pioneer Dr. James Van Allen was born. The Van Allen radiation belts were named after him, following the 1958 satellite missions (Explorer 1 and Explorer 3) in which Van Allen had argued that a Geiger counter should be used to detect charged particles. “Apparently, something happens on the sun. It sends out a burst of gases. The reservoirs above our earth shake like a bowl…
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physics
Max Delbrück – Co-founder of Modern Molecular Biology and Genetics

Max Delbrück – Co-founder of Modern Molecular Biology and Genetics

Harald Sack
On September 4, 1906, German biophysicist and Nobel laureate Max Delbrück was born in Berlin. His best known achievement for that he won the Nobel prize was the discovery that bacteria become resistant to viruses (phages) as a result of genetic mutations. “If you’re too sloppy, then you never get reproducible results, and then you never can draw any conclusions; but if you are just a little sloppy, then when you see…
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physics
Claude Debussy – More than just the Link between Romanticism and Modernity

Claude Debussy – More than just the Link between Romanticism and Modernity

Harald Sack
On August 22, 1862, French composer Claude Debussy was born. Debussy’s music is regarded as a link between romanticism and modernity. He was among the most influential composers of the late 19th and early 20th centuries. For me, his Claire de Lune is one of the most beautiful pieces for piano I have ever played. “The colour of my soul is iron-grey and sad bats wheel about the steeple of my dreams.” — Claude…
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physics
Sir Fred Hoyle – How Big Bang Theory’s Most Eager Opponent was Responsible for its Popularity

Sir Fred Hoyle – How Big Bang Theory’s Most Eager Opponent was Responsible for its Popularity

Harald Sack
On August 20, 2001, famous astronomer, mathematician, and author Sir Fred Hoyle passed away. The scientist was the first to coin the term “Big Bang” for the now prevailing theory of the early development of the universe in 1949, even though he happened to be a strong opponent of this theory. “We now come to the question of applying the observational tests to earlier theories. These theories were based on the hypothesis that all…
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physics
Mies van der Rohe – the expression of constructive logic and spatial freedom in a classical form

Mies van der Rohe – the expression of constructive logic and spatial freedom in a classical form

Harald Sack
On August 17, 1969, German-American architect Ludwig Mies van der Rohe passed away. Along with Le Corbusier,[6] Walter Gropius [4] and Frank Lloyd Wright,[7] he is regarded as one of the pioneers of modernist architecture. “God is in the details.” — Mies can der Rohe, “On restraint in Design” in The New York Herald Tribune (28 June 1959) Bricklayer and Draughtsman Maria Ludwig Michael was born on March 27, 1886, the youngest son of…
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chemistry
Henry Moseley and the Atomic Numbers

Henry Moseley and the Atomic Numbers

Harald Sack
On August 10, 1915, English physicist, Henry Moseley was killed in action. Moseley‘s contribution to the science of physics was the justification from physical laws of the previous empirical and chemical concept of the atomic number. This stemmed from his development of Moseley’s law in X-ray spectra. “We have now got what seems to be definite proof that an X ray which spreads out in a spherical form from a source as a wave…
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communication
Mary Had a Little Lamb – Edison and the Phonograph

Mary Had a Little Lamb – Edison and the Phonograph

Harald Sack
On July 18, 1877 Thomas A. Edison conceived the first idea for his phonograph, the very first mechanical tool for recording and reproducing (replaying) sound. The phonograph also was the invention that first gained him public notice. Only a Byproduct Actually, the phonograph was intended as a byproduct of Edison’s efforts to “play back” recorded telegraph messages and to automate speech sounds for transmission by telephone. The recordings of the first phonograph…
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physics
The misjudged Math Teacher – Georg Simon Ohm

The misjudged Math Teacher – Georg Simon Ohm

Harald Sack
On July 6, 1854, the Bavarian physicist and mathematician Georg Simon Ohm passed away, he was best known for his research on electricity and it was him to initiate the subject of circuit theory. The SI unit of electrical resistance and Ohm’s law are named after this Bavarian ‘teacher’. “The design of this Memoir is to deduce strictly from a few principles, obtained chiefly by experiment, the rationale of those electrical phenomena which are produced…
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physics
Sir Isaac Newton and the famous Principia

Sir Isaac Newton and the famous Principia

Harald Sack
On July 5, 1687, Sir Isaac Newton published his Philosophiae Naturalis Principia Mathematica (in Latin). The Principia states Newton’s laws of motion, forming the foundation of classical mechanics; Newton’s law of universal gravitation; and a derivation of Kepler’s laws of planetary motion (which Kepler first obtained empirically).[6] It is to be considered as the most influential work of Isaac Newton and as one of the greatest scientific works of all time. “The ancients…
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astronomy
The Supernova of 1054

The Supernova of 1054

Harald Sack
On July 4, 1054, Chinese astronomers observed a new star in the constellation of Taurus, which later turned out to be a supernova. However, even before the Chinese, on 11 April 1054, a monk in Flanders noticed a “bright disc in the afternoon“. This was the first traditional observation of a supernova explosion. “First year of the Zhihe era, fifth lunar month, ji-chou day. A guest star has appeared to the south-east of…
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