Yearly Archives: 2017

Ivan Matveevich Vinogradov and the Goldbach Conjecture

Ivan Matveevich Vinogradov and the Goldbach Conjecture

On September 14, 1891, Soviet mathematician Ivan Matveevich Vinogradov was born. Vinogradov is best known for his contributions to the analytical theory of numbers, including a partial solution of the Goldbach conjecture proving that every sufficiently large odd integer can be expressed as the sum of three odd primes. Ivan Matveevich Vinogradov was born to Matvei Avraam’evich Vinogradov, a priest in Milolyub, a village in the Velikie Luki district of…
Sir Andrew Noble and the Science of Ballistics

Sir Andrew Noble and the Science of Ballistics

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 was commissioned in the Royal Artillery in 1849. He later became secretary of the Royal Artillery Institution. Noble was secretary…
Richard March Hoe and the Rotary Printing Press

Richard March Hoe and the Rotary Printing Press

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 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 established a steam-powered manufactory…
Astronomer James Jeans

Astronomer James Jeans

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. James Jeans was attended several schools, he joined Merchant Taylors’ School, Northwood, Wilson’s Grammar School, as well as Camberwell and Trinity College, Cambridge.  At…
James Keeler and the Rings of Saturn

James Keeler and the Rings of Saturn

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. 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 of the American Civil…
Augustine Pyramus de Candolle and the Biological Clock

Augustine Pyramus de Candolle and the Biological Clock

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. 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,…
Paul Gerson Unna and Dermatopathology

Paul Gerson Unna and Dermatopathology

On September 8, 1850, German dermatologist Paul Gerson Unna was born. Unna soon specialized in dermatology and became 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. Paul Unna was born in Hamburg, the son…
David Packard and Hewlett-Packard

David Packard and Hewlett-Packard

On September 7, 1912, American electrical engineer and co-founder of Hewlett-Packard, David Packard was born. Packard is noted for many technological innovations and philanthropic endeavors. In 1939, he formed a partnership known as Hewlett-Packard Company with William R. Hewlett, a friend and Stanford classmate. Hewlett-Packard Co. has become a leading manufacturer computers, computer printers, and analytic and measuring equipment. David Packard joined Stanford University where he met his future business partner…
Luis Federico Leloir and the Metabolic Pathways of Lactose

Luis Federico Leloir and the Metabolic Pathways of Lactose

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. Leloir’s parents, Federico Leloir and Hortensia Aguirre de Leloir, both from an…
Victor Ambartsumian and Theoretical Astrophysics

Victor Ambartsumian and Theoretical Astrophysics

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. Victor Ambartsumian was the son of the prominent philologist and writer Hamazasp Asaturovich Ambartsumian, the translator of Homer’s Iliad…
Relation Browser
Timeline
0 Recommended Articles:
0 Recommended Articles: