SciHi Blog

Elias Howe and the Invention of the Sewing Machine

Elias Howe and the Invention of the Sewing Machine

On October 3, 1867, American inventor Elias Howe Jr. passed away. Howe is best known for his invention of a a sewing machine using a lockstitch design. Elias Howe – Family Background Elias Howe Jr. was born in Spencer, Massachussetts, USA, the son of Dr. Elias Howe Sr. and Polly (Bemis) Howe. He was apprentice in a textile factory and after mill closings due to the Panic of 1837, he moved to Cambridge, Massachusetts. There, Howe…
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Alexander Todd and the Chemistry of Nucleotide Coenzymes

Alexander Todd and the Chemistry of Nucleotide Coenzymes

On October 2, 1907, British chemist and Nobel laureate Alexander Robertus Todd, Baron Todd was born. Todd‘s research on the structure and synthesis of nucleotides, nucleosides, and nucleotide coenzymes gained him the Nobel Prize for Chemistry. Youth and Education Alexander R. Todd was born near Glasgow, Scotland, the elder son of Alexander Todd, a business man of that city, and his wife Jean Lowrie. In 1918 Todd gained admission to the Allan…
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Walter Bradford Cannon and the Concept of Homeostasis

Walter Bradford Cannon and the Concept of Homeostasis

On October 1, 1871, American physiologist Walter Bradford Cannon was born. Cannon coined the term fight or flight response, and he expanded on Claude Bernard’s concept of homeostasis. Homeostasis is the property of a system within an animal in which a variable, such as the concentration of a substance in solution, is actively regulated to remain very nearly constant. Examples of homeostasis include the regulation of body temperature, the pH of extracellular fluid, or…
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Jacques Necker and the Finances of France

Jacques Necker and the Finances of France

On September 30, 1732, Swiss banker, French statesman and finance minister for Louis XVI Jacques Necker was born. Necker helped make decisions that were critical in creating political and social conditions that contributed to the outbreak of the French Revolution in 1789. In 1780, Necker published the Compte rendu au roi, in which he summarized governmental income and expenditures to provide the first record of royal finances ever made public. “Only fools, pure…
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Themistokles and the Battle of Salamis

Themistokles and the Battle of Salamis

On September 29, 480 BC, the Battle of Salamis took place, a naval battle between the Greek city-states under Themistocles and the Persian Empire under King Xerxes, which marked the high-point of the second Persian invasion of Greece. Herodotus – the Father of History Our main source for the Greco-Persian Wars is the Greek historian Herodotus, often referred to as the ‘Father of History’.[1] The Greek city-states of Athens and Eretria had…
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Paul Villard and the Gamma Radiation

Paul Villard and the Gamma Radiation

On September 28, 1860, French chemist and physicist Paul Ulrich Villard was born. Villard is best known for having discovered gamma rays in 1900 while studying the radiation emanating from radium. Paul Villard – Youth and Education Paul Villard was born in Saint-Germain-au-Mont-d’Or, Rhône, France. Villard entered the École Normal Supérieure in 1881 and received the agrégé in 1884, which gave him the license to teach at any secondary school financed by…
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Benjamin Gould and the Stars of the Southern Hemisphere

Benjamin Gould and the Stars of the Southern Hemisphere

On September 27, 1824, American astronomer Benjamin Apthorp Gould was born. Gould is noted for creating the Astronomical Journal, discovering the Gould Belt, and for founding of the Argentine National Observatory and the Argentine National Weather Service. His star catalogs helped fix the list of constellations of the Southern Hemisphere. Benjamin Apthorp Gould – Youth and Education Benjamin Apthorp Gould was born in Boston. Massachussetts, USA, the on of Benjamin Apthorp Gould, the principal…
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Harrison Brown and the Isolation of Plutonium

Harrison Brown and the Isolation of Plutonium

On September 26, 1916, American nuclear chemist and geochemist Harrison Scott Brown was born. Brown is generally known for his role in isolating plutonium for its use in the first atomic bombs and for his studies regarding meteorites and the Earth’s origin. He also was a political activist, who lectured and wrote on the issues of arms limitation, natural resources and world hunger. Harrison Brown – Youth and Education Harrison Brown was…
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Thomas Hunt Morgan and the Chromosome Theory of Heredity

Thomas Hunt Morgan and the Chromosome Theory of Heredity

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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Severo Ochoa and the Biological Systhesis of RNA and DNA

Severo Ochoa and the Biological Systhesis of RNA and DNA

On September 24, 1905, Spanish physicist and biochemist Severo Ochoa de Albornoz was born. Ochoa received the 1959 Nobel Prize in Physiology or Medicine together with Arthur Kornberg for their discovery of the mechanisms in the biological synthesis of ribonucleic acid and deoxyribonucleic acid. Severo Ochoa – Early Years Severo Ochoa was born in Luarca (Asturias), Spain, to Severo Manuel Ochoa, a lawyer and businessman, and his mother Carmen de Albornoz. Ochoa…
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