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communication
Michael Pupin solving the Problems of long-distance Communication

Michael Pupin solving the Problems of long-distance Communication

Harald Sack
On October 9, 1858, Serbian American physicist and physical chemist Michael Pupin was born, who is best known for his numerous patents, including a means of greatly extending the range of long-distance telephone communication by placing loading coils (of wire) at predetermined intervals along the transmitting wire (known as “pupinization“). “We would never get away from it. … It’s bad enough as it is, but with the wireless telephone one could be…
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astronomy
Ejnar Hertzsprung and the Hertzsprung-Russell Diagram

Ejnar Hertzsprung and the Hertzsprung-Russell Diagram

Tabea Tietz
On October 8, 1873, Danish chemist and astronomer Ejnar Hertzsprung was born. Together with Henry Norris Russell, Hertzsprung developed the Hertzsprung–Russell diagram, a scatter graph of stars showing the relationship between the stars‘ absolute magnitudes or luminosities versus their spectral classifications or effective temperatures, which has become fundamental to the study of stellar evolution. Ejnar Hertzsprung – Early Years Ejnar Hertzsprung was probably not formally educated, but studied in technological colleges in Denmark…
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chemistry
Harold Kroto and the Discovery of Fullerenes

Harold Kroto and the Discovery of Fullerenes

Harald Sack
On October 7, 1939, English chemist and Nobel Laureate Sir Harold Walter Kroto was born. Kroto shared the 1996 Nobel Prize in Chemistry with Robert Curl and Richard Smalley [6] for their discovery of fullerenes, i.e. molecules of carbon in the form of a hollow sphere, ellipsoid, tube, and many other shapes, which have been the subject of intense research, both for their unique chemistry and for their technological applications, especially in…
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art
Jacopo Peri and the Birth of Early Opera

Jacopo Peri and the Birth of Early Opera

Tabea Tietz
On October 6, 1600, Jacopo Peri‘s opera Euridice was performed for the first time, being created for the marriage of King Henry IV of France and Maria de Medici. The composition is typically considered to be the second work of modern opera, and the first such musical drama to survive to the present day. “To hear him sing his works composed with excellent skill… induced every heart of stone to tears.” –…
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explorer
William Scoresby and the Scientific Study of the Arctic

William Scoresby and the Scientific Study of the Arctic

Tabea Tietz
On October 5, 1789, English Arctic explorer, scientist and clergyman William Scoresby was born. Scoresby pioneered in the scientific study of the Arctic and contributed to the knowledge of terrestrial magnetism. “Though a Greenland voyage is perhaps one of the most arduous of all maritime adventures, the mind of the commander of a whale-ship being very rarely free from anxiety ; yet, like all other occupations at sea, it affords occasional intervals of…
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architecture
Giovanni Battista Piranesi and the Art of Etching

Giovanni Battista Piranesi and the Art of Etching

Harald Sack
On October 4, 1720, Italian Classical archaeologist, architect, and artist Giovanni Battista Piranesi was born. Piranesi is famous for his etchings of Rome and of fictitious and atmospheric “prisons” (Le Carceri d’Invenzione). Giovanni Battista Piranesi – Family Background Piranesi was born in Venice. He was the son of a stonemason who also worked as a construction manager. The first written document about Giovanni Battista Piranesi is his entry in the baptismal register of…
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astronomy
ALMA – the largest and most expensive ground-based astronomical project

ALMA – the largest and most expensive ground-based astronomical project

Harald Sack
On October 3, 2011, first images produced by the Atacama Large Millimeter Array were released to the press. The Atacama Large Millimeter/submillimeter Array (ALMA) is an astronomical interferometer of radio telescopes in the Atacama desert of northern Chile. ALMA is currently the largest and most expensive ground-based astronomical project, costing between US$1.4 and 1.5 billion. The ALMA Interferometer ALMA is an interferometer, i.e. many small radio telescopes working together as a single large…
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geology
Baron Gerard de Geer and the Varves

Baron Gerard de Geer and the Varves

Tabea Tietz
On October 2, 1858, Swedish geologist Gerard Jacob De Geer was born. De Geer made significant contributions to Quaternary geology, particularly geomorphology and geochronology. But, he is best known for his discovery of varves. A varve is a seasonal coarse-fine layer of clay deposited in still water.The layers were produced by the annual melt-water sequence and can be used as a chronological evidence. Gerard de Geer – Family Background and Early Years Baron…
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physics
Otto Frisch and the Idea of Nuclear Fission

Otto Frisch and the Idea of Nuclear Fission

Tabea Tietz
On October 1, 1904, Austrian-British physicist Otto Robert Frisch was born. With his aunt Lise Meitner,[4] Frisch described the division of neutron-bombarded uranium into lighter elements. With his collaborator Rudolf Peierls he designed the first theoretical mechanism for the detonation of an atomic bomb in 1940. “Scientists have one thing in common with children: curiosity. To be a good scientist you must have kept this trait of childhood, and perhaps it is not…
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physics
Jean Baptiste Perrin and the Brownian Motion

Jean Baptiste Perrin and the Brownian Motion

Tabea Tietz
On September 30, 1870, French physicist Jean Baptiste Perrin was born. In his studies of the Brownian motion of minute particles suspended in liquids, Perrin verified Albert Einstein’s explanation of this phenomenon and thereby confirmed the atomic nature of matter. Jean Baptiste Perrin – Biographical Background Jean Baptiste Perrin was born in Lille, France, while his father, Captain Jean Baptiste Perrin, wounded at the battle of Saint-Privat, was locked up in Metz…
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