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Tabea Tietz

biology
Thomas Hunt Morgan and the Chromosome Theory of Heredity

Thomas Hunt Morgan and the Chromosome Theory of Heredity

Tabea Tietz
On September 25, 1866, American evolutionary biologist, geneticist, embryologist, and science author Thomas Hunt Morgan was born. He is famous for his experimental research with the fruit fly by which he established the chromosome theory of heredity. Thomas Hunt Morgan was awarded the Nobel Prize in Physiology or Medicine in 1933 for discoveries elucidating the role that the chromosome plays in heredity. “Except for the rare cases of plastid inheritance, the inheritance of all known cooacters can…
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agriculture
John Boyd Orr and his Nutrition Research

John Boyd Orr and his Nutrition Research

Tabea Tietz
On September 23, 1880, Scottish teacher, doctor, biologist and politician John Boyd Orr, 1st Baron Boyd-Orr was born. Boyd Orr received the Nobel Peace Prize for his scientific research into nutrition and his work as the first Director-General of the United Nations Food and Agriculture Organization (FAO) to eliminate world hunger. “There can be no peace in the world so long as a large proportion of the population lack the necessities of life…
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medical science
Charles Nicolle and the Transmission of Typhus

Charles Nicolle and the Transmission of Typhus

Tabea Tietz
On September 21, 1866, French bacteriologist Charles Juley Henry Nicolle was born. Nicolle was awarded the 1928 Nobel Prize in Medicine for his identification of lice as the transmitter of epidemic typhus. Family and Education Charles Nicolle was the second of three sons of the French doctor Eugène Nicolle to be born in the northern French town of Rouen. His mother was the daughter of a local watchmaker. Nicolle attended the Lycée Pierre Corneille in…
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biology
Carl Correns and the Principles of Heredity

Carl Correns and the Principles of Heredity

Tabea Tietz
On September 19, 1864, German botanist and geneticist Carl Erich Correns was born. Correns is notable primarily for his independent discovery of the principles of heredity, and for his rediscovery of Gregor Mendel‘s earlier paper on that subject, which he achieved simultaneously but independently of the botanists Erich Tschermak and Hugo de Vries, and the agronomist William Jasper Spillman.[5] Family and Academic Career Carl Correns came from a family of lawyers in the…
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medical science
Duchenne de Boulogne’s Research in Neurology

Duchenne de Boulogne’s Research in Neurology

Tabea Tietz
On September 17, 1806, French neurologist Duchenne de Boulogne was born. Duchenne de Boulogne revived Galvani‘s research and greatly advanced the science of electrophysiology.[3] The era of modern neurology developed from Duchenne‘s understanding of neural pathways and his diagnostic innovations including deep tissue biopsy, nerve conduction tests (NCS), and clinical photography. He was first to describe several nervous and muscular disorders and, in developing medical treatment for them, created electrodiagnosis and electrotherapy. Duchenne…
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astronomy
Jean Bailly and the Orbit of Halley’s Comet

Jean Bailly and the Orbit of Halley’s Comet

Tabea Tietz
On September 15, 1736, French astronomer, mathematician, freemason, and political leader of the early part of the French Revolution Jean Sylvain Bailly was born. Bailly computed an orbit for Halley’s Comet (1759) and studied the four satellites of Jupiter then known. He was the first Mayor of Paris and presided over the Tennis Court Oath. “The motion of the stars calculated by the Hindus some 4500 years before vary not even a single…
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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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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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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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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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