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chemistry
Stephen Mouton Babcock and the Babcock Test

Stephen Mouton Babcock and the Babcock Test

Tabea Tietz
On July 2, 1931, American agricultural chemist Stephen Moulton Babcock passed away. He is best known for his Babcock test in determining dairy butterfat in milk processing, for cheese processing, and for the “single-grain experiment” that led to the development of nutritional science as a recognized discipline. He worked for 43 years at the University of Wisconsin, where he established a laboratory where he carried out pioneering research in nutrition and in…
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biology
The Wonderful World of Thomas Pennant, Zoologist

The Wonderful World of Thomas Pennant, Zoologist

Harald Sack
On June 14, 1726, Welsh naturalist, traveller, writer and antiquarian Thomas Pennant was born. As a naturalist he had a great curiosity, observing the geography, geology, plants, animals, birds, reptiles, amphibians and fish around him and recording what he saw and heard about. He wrote acclaimed books including British Zoology, the History of Quadrupeds, Arctic Zoology and Indian Zoology although he never travelled further afield than continental Europe. Thomans Pennant – Early…
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physics
Edward Lorenz and the Butterfly Effect

Edward Lorenz and the Butterfly Effect

Harald Sack
On May 23, 1917, American mathematician, meteorologist, and a pioneer of chaos theory Edward Norton Lorenz was born. He is best known for pointing out the “butterfly effect” whereby chaos theory predicts that “slightly differing initial states can evolve into considerably different states.” In his 1963 paper in the Journal of Atmospheric Sciences, he cited the flapping of a seagull‘s wings as changing the state of the atmosphere in even such a…
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physics
Roy Kerr and Mysterious Rotating Black Holes

Roy Kerr and Mysterious Rotating Black Holes

Tabea Tietz
On May 16, 1934, New Zealand mathematician Roy Kerr was born. Kerr is best known for discovering the Kerr geometry, an exact solution to the Einstein field equation of general relativity. His solution models the gravitational field outside an uncharged rotating massive object, including a rotating black hole. Roy Kerr – Early Years Roy Kerr was educated at the private school St Andrew’s College. His talent for mathematics was first recognized during…
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cinematography
Étienne-Jules Marey and the Chronophotographic Gun

Étienne-Jules Marey and the Chronophotographic Gun

Tabea Tietz
On May 15, 1904, French scientist, physiologist and chronophotographer Étienne-Jules Marey passed away. Marey’s work was significant in the development of cardiology, physical instrumentation, aviation, cinematography and the science of laboratory photography. He is widely considered to be a pioneer of photography and an influential pioneer of the history of cinema. Étienne-Jules Marey – Early Years Étienne-Jules Marey was born on March 5, 1830 in Beaune, Côte-d’Or, France. In 1838 he visited the…
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mathematics
Gerbert of Aurillac and the Popularization of Science

Gerbert of Aurillac and the Popularization of Science

Harald Sack
On May 12, 1003, Gerbert of Aurillac aka Pope Sylvester II passed away. A prolific scholar and teacher, he endorsed and promoted study of Arab and Greco-Roman arithmetic, mathematics, and astronomy, reintroducing to Europe the abacus and armillary sphere, which had been lost to Latin Europe since the end of the Greco-Roman era. He is said to be the first to introduce in Europe the decimal numeral system using Arabic numerals. Gerbert…
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aviation
Theodore von Kármán and his Advances in Aerodynamics

Theodore von Kármán and his Advances in Aerodynamics

Tabea Tietz
On May 11, 1881, Hungarian-American mathematician, aerospace engineer and physicist Theodore von Kármán was born. Kármán was active primarily in the fields of aeronautics and astronautics. He is responsible for many key advances in aerodynamics, notably his work on supersonic and hypersonic airflow characterization. “I came to realize that exaggerated concern about what others are doing can be foolish. It can paralyze effort, and stifle a good idea. One finds that in the history…
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art
Leonardo Da Vinci – the Prototype of a Renaissance Man

Leonardo Da Vinci – the Prototype of a Renaissance Man

Tabea Tietz
On May 2, 1519, Italian Renaissance polymath Leonardo da Vinci passed away. Leonardo’s areas of interest included invention, painting, sculpting, architecture, science, music, mathematics, engineering, literature, anatomy, geology, astronomy, botany, writing, history, and cartography. He has been variously called the father of paleontology, ichnology, and architecture, and is widely considered one of the greatest painters of all time. “Painting is poetry which is seen and not heard, and poetry is a painting…
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geology
Alexander Ross Clarke and the true Shape of the Earth

Alexander Ross Clarke and the true Shape of the Earth

Tabea Tietz
On December 16, 1828, British geodesist Alexander Ross Clarke was born. He is best known for his calculation of the Principal Triangulation of Britain (1858), the calculation of the Figure of the Earth (1858, 1860, 1866, 1880) and one of the most important text books of Geodesy (1880). The figures from his second determination became a standard reference for U.S. geodesy for most of the twentieth century until satellites could improve accuracy.…
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physics
George Green and his Theory of Electricity and Magnetism

George Green and his Theory of Electricity and Magnetism

Harald Sack
On July 14, 1793, British mathematical physicist George Green was baptized. He is best known for his publication of wrote An Essay on the Application of Mathematical Analysis to the Theories of Electricity and Magnetism, in which he developed a first mathematical theory of electricity and magnetism. His theory formed the foundation for the work of other scientists such as James Clerk Maxwell,[3] William Thomson,[4] and others. The Son of a Baker George…
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