SciHi Blog

physics
Sir Andrew Noble and the Science of Ballistics

Sir Andrew Noble and the Science of Ballistics

Tabea Tietz
On September 13, 1831, Scottish physicist Andrew Noble was born. Noble was a gunnery expert, known as a founder of the science of ballistics. He invented the chronoscope, a device for measuring very small time intervals, and used it to measure the velocity of shot in gun barrels. Andrew Noble – Early Years Born at Greenock, Andrew Noble was educated at Edinburgh Academy and at the Royal Military Academy, Woolwich. He was commissioned in…
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engineering
Richard March Hoe and the Second Printing Revolution

Richard March Hoe and the Second Printing Revolution

Harald Sack
On September 12, 1812, American inventor Richard March Hoe was born. Hoe designed a rotary printing press and related advancements, including the “Hoe web perfecting press” in 1871, which used a continuous roll of paper and revolutionized newspaper publishing. Richard March Hoe – Early Years Richard March Hoe was born in New York City, the son of Robert Hoe, an English-born American mechanic from Leicestershire, who with brothers-in-law Peter and Matthew Smith had…
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astronomy
James Jeans and the Theory of Continuous Creation

James Jeans and the Theory of Continuous Creation

Tabea Tietz
On September 11, 1877, English physicist, astronomer and mathematician James Hopwood Jeans was born. Jeans was the first to propose that matter is continuously created throughout the universe. He made other innovations in astronomical theory but is perhaps best known as a writer of popular books about astronomy. “The stream of knowledge is heading towards a non-mechanical reality; the Universe begins to look more like a great thought than like a great machine.…
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astronomy
James Edward Keeler and the Rings of Saturn

James Edward Keeler and the Rings of Saturn

Harald Sack
On September 10, 1857, American astronomer James Edward Keeler was born. Keeler is best known for being the astronomer who confirmed James Clerk Maxwell‘s theory that the rings of Saturn were not solid (requiring uniform rotation), but composed of meteoric particles.[3] James Edward Keeler – Early Years James Edward Keeler was born in La Salle, Illinois, to William F. Keeler, who served as a paymaster in the U.S. Navy at the time…
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biology
Augustine Pyramus de Candolle and the Biological Clock

Augustine Pyramus de Candolle and the Biological Clock

Tabea Tietz
On September 9, 1841, Swiss botanist Augustin Pyramus de Candolle passed away. Candolle originated the idea of “Nature’s war”, which influenced Charles Darwin and the principle of natural selection.[3,4] Furthermore, he recognized that multiple species may develop similar characteristics that did not appear in a common evolutionary ancestor; this was later termed analogy. During his work with plants, de Candolle noticed that plant leaf movements follow a near-24-hour cycle in constant light, suggesting that…
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medical science
Paul Gerson Unna and Dermatopathology

Paul Gerson Unna and Dermatopathology

Harald Sack
On September 8, 1850, German dermatologist Paul Gerson Unna was born, who was one of the pioneers in dermatopathology. He became known internationally in his field after writing a book on Histopathology of Skin Diseases (1884), which became a classic work. His name is also remembered for the Unna-Pappenheim stain, the most common stain for blood smears. “Dermatology … this young daughter of medicine.” – Paul Gerson Unna Paul Gerson Unna – Early Years…
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chemistry
Luis Federico Leloir and the Metabolic Pathways of Lactose

Luis Federico Leloir and the Metabolic Pathways of Lactose

Harald Sack
On September 6, 1906, Argentine physicist and biochemist Luis Federico Leloir was born. Leloir received the 1970 Nobel Prize in Chemistry for his discovery of the metabolic pathways in lactose, becoming only the third Argentine to receive the prestigious honor in any field. His research has led to significant progress in understanding, diagnosing and treating the congenital disease galactosemia. “This is only one step in a much larger project. I discovered (no, not…
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astronomy
Victor Ambartsumian and Theoretical Astrophysics

Victor Ambartsumian and Theoretical Astrophysics

Tabea Tietz
On September 5, 1908, Soviet astronomer and astrophysicist Viktor Amazaspovich Ambartsumian was born. Ambartsumian is well known as one of the founders of theoretical astrophysics. He worked in the field of physics of stars and nebulae, stellar astronomy, dynamics of stellar systems and cosmogony of stars and galaxies, and contributed to mathematical physics. Early Years Victor Ambartsumian was the son of the prominent philologist and writer Hamazasp Asaturovich Ambartsumian, the translator of Homer’s Iliad…
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architecture
Urban Planning with Daniel H. Burnham

Urban Planning with Daniel H. Burnham

Harald Sack
On September 4, 1846, American architect and urban designer Daniel Burnham was born. Burnham took a leading role in the creation of master plans for the development of a number of cities, including Chicago, Manila and downtown Washington, D.C. He also designed several famous buildings, including the Flatiron Building of triangular shape in New York City, Union Station in Washington D.C., the Continental Trust Company Building tower skyscraper in Baltimore, and a…
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mathematics
Carl Størmer and the Mathematical Model of the Formation of Aurorae

Carl Størmer and the Mathematical Model of the Formation of Aurorae

Tabea Tietz
On September 3, 1874, Norwegian mathematician and geophysicist Carl Størmer was born. Carl Størmer is known both for his work in number theory and for studying the movement of charged particles in the magnetosphere and the formation of aurorae. He also contributed both important photographic observations and mathematical data to the understanding of the polar aurora, of stratospheric and mesospheric clouds, and of the structure of the ionosphere. The discovery of the Van Allen…
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