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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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astronomy
Sir Martin Ryle’s Breakthrough in Radio Astronomy with Aperture Synthesis

Sir Martin Ryle’s Breakthrough in Radio Astronomy with Aperture Synthesis

Tabea Tietz
On September 27, 1918, English radio astronomer and Nobel Laureate Sir Martin Ryle was born. Ryle developed revolutionary radio telescope systems and used them for accurate location and imaging of weak radio sources. He was Astronomer Royal from 1972 to 1982 and shared the Nobel Prize in Physics in 1974 with Antony Hewish, the first Nobel prize awarded in recognition of astronomical research. “I think that the event which, more than anything else, led me…
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medical science
Archibald Hill and the Discipline of Biophysics

Archibald Hill and the Discipline of Biophysics

Tabea Tietz
On September 26, 1886, English physiologist and Nobel Laureate Archibald Vivian Hill was born. Hill is one of the founders of the diverse disciplines of biophysics and operations research. He shared the 1922 Nobel Prize in Physiology or Medicine for his elucidation of the production of heat and mechanical work in muscles. “One knows that after violent exercise one breathes heavily for some time: the more violent the exercise, the longer one’s respiration is…
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aviation
Eugen Sänger and Rocket Propulsion Engineering

Eugen Sänger and Rocket Propulsion Engineering

Tabea Tietz
On September 22, 1905, Austrian rocket propulsion engineer Eugen Sänger was born. Sänger is best known for his contributions to lifting body and ramjet technology. Sänger also perfected a “regeneratively cooled” liquid-fueled rocket engine that used its own fuel, circulating around the combustion chamber, to control engine temperatures. By Rocket into Planetary Space After the early loss of his father, Eugen Sänger attended elementary schools in Budapest and Kelenföld. As early as 1918, Sänger…
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communication
Chester Carlson and the Invention of Xerography

Chester Carlson and the Invention of Xerography

Tabea Tietz
On September 19, 1968, American physicist, inventor, and patent attorney Chester F. Carlson passed away. He is best known for having invented the process of electrophotography, which produced a dry copy rather than a wet copy, as was produced by the mimeograph process. Carlson’s process was subsequently renamed xerography, a term that literally means “dry writing.” Chester Carlson – Early Years Chester F. Carlson was the only child of Olof Adolph (*…
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physics
Edwin McMillan and his Research on Transuranium Elements

Edwin McMillan and his Research on Transuranium Elements

Tabea Tietz
On September 18, 1907, American physicist and Nobel Laureate Edwin Mattison McMillan was born. McMillan is credited with being the first ever to produce a transuranium element, neptunium. For this, he shared the Nobel Prize in Chemistry with Glenn Seaborg in 1951. Edwin McMillan – Early Years Edwin McMillan, the son of physicist Dr. Edwin Harbaugh McMillan and his wife Anne Marie McMillan, née Mattison, grew up in Pasadena, California. He entered…
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medical science
Stephen Hales and the Blood Pressure

Stephen Hales and the Blood Pressure

Harald Sack
On September 17, 1677, English clergyman Stephen Hales was born. Hales made major contributions to a range of scientific fields including botany, pneumatic chemistry and physiology. He was the first person to measure blood pressure. He also invented several devices, including a ventilator, a pneumatic trough and a surgical forceps for the removal of bladder stones. In addition to these achievements was a philanthropist and wrote a popular tract on alcoholic intemperance. “We are…
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astronomy
The first Observation of Gravitational Waves

The first Observation of Gravitational Waves

Tabea Tietz
On September 14, 2015, the LIGO Scientific Collaboration observed gravitational waves from a 410 megaparsec (1.3 billion light years) distant merger of two black holes. Previously, gravitational waves had only been inferred only indirectly, via their effect on the timing of pulsars in binary star systems. It was also the first observation of a binary black hole merger, demonstrating both the existence of binary stellar-mass black hole systens, and the fact that…
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engineering
Oliver Evans – Pioneer of Automation

Oliver Evans – Pioneer of Automation

Tabea Tietz
On September 13, 1755, American inventor, engineer and businessman Oliver Evans was born. A pioneer in the fields of automation, materials handling and steam power, Evans was one of the most prolific and influential inventors in the early years of the United States. He is known for designing and building the first fully automated industrial process; America’s first high-pressure steam engine; and the first (albeit crude) amphibious vehicle and American automobile. Early Years of…
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explorer
Henry Hudson’s Voyages in North America

Henry Hudson’s Voyages in North America

Harald Sack
On September 11, 1609, English sea explorer and navigator Henry Hudson after having reached the estuary of the river that carries his name today, followed the river upstream sailing along Manhattan Island. Hudson explored the region around modern New York metropolitan area while looking for a western route to Asia while in the employment of the Dutch East India Company. He explored the river which eventually was named for him, and laid…
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