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Science on the 30th of November 1901 in history

Science

Date	Type	Text
30 Nov 1901 Hermann Emil Fischer	science	Hermann Emil Fischer (chemistry) Hermann Emil Fischer and Joseph von Mering discover that barbitone (barbital or Veronal) is an effective hypnotic agent. It becomes the first commercially marketed barbiturate, being used as a treatment for insomnia from 1903.	0
30 Nov 1901 Auguste Verneuil	science	Auguste Verneuil (chemistry) Auguste Verneuil develops the Verneuil process for making synthetic rubies.	0
30 Nov 1901 Mount Pelée	science	Mount Pelée (earth sciences) Eruption of Mount Pelée in Martinique.	0
30 Nov 1901 Walter Sutton	science	Walter Sutton (genetics) Walter Sutton (in the United States) and Theodor Boveri (in Germany) independently develop the Boveri–Sutton chromosome theory, explaining the mechanism underlying the laws of Mendelian inheritance by identifying chromosomes as the carriers of genetic material.	0
30 Nov 1901 Gyula Farkas	science	Gyula Farkas (mathematics) Gyula Farkas publishes the first proof of Farkas' lemma.	0
30 Nov 1901 Henri Lebesgue	science	Henri Lebesgue (mathematics) Henri Lebesgue introduces the theory of Lebesgue integration.	0
30 Nov 1901 Barnum Brown	science	Barnum Brown (paleontology) Remains of the second Tyrannosaurus rex specimen, the first recognized as such, are excavated by Barnum Brown.	0
30 Nov 1901 Oliver Heaviside	science	Oliver Heaviside (physics) Oliver Heaviside and Arthur E. Kennelly independently predict the existence of what will become known as the Kennelly-Heaviside Layer of the ionosphere.	0
30 Nov 1901 James Jeans	science	James Jeans (physics) James Jeans finds the length scale required for gravitational perturbations to grow in a static nearly homogeneous medium.	0
30 Nov 1901 Philipp Lenard	science	Philipp Lenard (physics) Philipp Lenard observes that maximum photoelectron energies are independent of illuminating intensity but depend on frequency.	0
30 Nov 1901 Gilbert N. Lewis	science	Gilbert N. Lewis (physics) Gilbert N. Lewis develops the cubical atom atomic model.	0
30 Nov 1901 Theodor Svedberg	science	Theodor Svedberg (physics) Theodor Svedberg suggests that fluctuations in molecular bombardment cause the Brownian motion.	0
30 Nov 1901 William Bayliss	science	William Bayliss (physiology) William Bayliss and Ernest Starling make the first discovery of a hormone, secretin.	0
30 Nov 1901 Vienna Psychoanalytic Society	science	Vienna Psychoanalytic Society (psychology) Vienna Psychoanalytic Society begins to meet as the Wednesday Psychological Society in Sigmund Freud's apartment.	0
30 Nov 1901 Vierendeel bridge	science	Vierendeel bridge (technology) First Vierendeel bridge built, across the Scheldt at Avelgem in Belgium.	0
30 Nov 1901 Orville and Wilbur Wright	science	Orville and Wilbur Wright (technology) Orville and Wilbur Wright fly for the first time at Kitty Hawk, North Carolina	0
30 Nov 1901 Vasily Dokuchaev	science	death Vasily Dokuchaev Vasily Dokuchaev (born 1845), geologist.	0

29th November 1901 1st December 1901

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