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Harald Sack

meteorology
James Pollard Espy – the Storm King

James Pollard Espy – the Storm King

Harald Sack
On May 9, 1785, U.S. Meteorologist James Pollard Espy was born. Espy developed a convection theory of storms and developed the use of the telegraph in assembling weather observation data by which he studied the progress of storms and laid the basis for scientific weather forecasting. James Pollard Espy – Early Years The youngest of ten children, James Espy was born in Westmoreland County, Pennsylvania, USA. He had an ardent desire for…
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engineering
Oskar von Miller and the Deutsches Museum

Oskar von Miller and the Deutsches Museum

Harald Sack
On May 7, 1855, German engineer Oskar von Miller was born. He is best remembered for being the founder of the Deutsches Museum, a large museum of technology and science. The Deutsches Museum is the world’s largest museum of science and technology, with approximately 1.5 million visitors per year and about 28,000 exhibited objects from 50 fields of science and technology. A long time ago, I have studied in Munich. And for…
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chemistry
Johann Joachim Becher and the Phlogiston Theory of Combustion

Johann Joachim Becher and the Phlogiston Theory of Combustion

Harald Sack
On May 6, 1636, German physician, alchemist, precursor of chemistry, scholar and adventurer Johann Joachim Becher was born. He is best known for his development of the phlogiston theory of combustion, in which all flammable objects were supposed to contain a substance which was released when the object burned, and his advancement of Austrian cameralism. “The chemists are a strange class of mortals, impelled by an almost insane impulse to seek their…
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photography
John William Draper – Chemist and Photo Pioneer

John William Draper – Chemist and Photo Pioneer

Harald Sack
On May 5, 1811, American philosopher, physician, chemist, historian and photographer John William Draper was born. He is credited with producing the first clear photograph of a female face (1839–40) and the first detailed photograph of the Moon (1840). He was also the first president of the American Chemical Society (1876–77) [14] and a founder of the New York University School of Medicine. John William Draper – Early Years John William Draper…
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biology
Thomas Henry Huxley – Darwin’s Bulldog

Thomas Henry Huxley – Darwin’s Bulldog

Harald Sack
On May 4, 1825, English biologist and anthropologist Thomas Henry Huxley was born. A specialist in comparative anatomy he is known as “Darwin’s Bulldog” for his advocacy of Charles Darwin’s theory of evolution[8,9]. “If the question is put to me would I rather have a miserable ape for a grandfather or a man highly endowed by nature and possessed of great means of influence and yet who employs these faculties and that…
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mathematics
Vito Volterra and Functional Analysis

Vito Volterra and Functional Analysis

Harald Sack
On May 3, 1860, Italian mathematician and physicist Vito Volterra was born. He is known for his contributions to mathematical biology and integral equations. Moreover, he is considered as one of the founders of functional analysis. “Empires die, but Euclid’s theorems keep their youth forever” — Vito Volterra Youth and Education Vito Volterra was born in Ancona, then part of the Papal States, as son of Abramo Volterra, a cloth merchant, into…
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cinematography
Orson Welles’ Disputed Masterpiece Citizen Kane

Orson Welles’ Disputed Masterpiece Citizen Kane

Harald Sack
On May 1st, 1941, American actor, director, writer, and producer Orson Welles famous movie ‘Citizen Kane‘ premiered at RKO’s flagship theatre, Radio City Music Hall. The film was directed, co-written, produced by, and starring Orson Welles. It was nominated for Academy Awards in nine categories and won an Academy Award for Best Writing (Original Screenplay) by Herman Mankiewicz and Welles. Citizen Kane often is considered by critics, filmmakers and fans to be the greatest film ever…
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mathematics
John Arbuthnot and the Laws of Chance

John Arbuthnot and the Laws of Chance

Harald Sack
On April 29, 1667, Scottish physician, satirist and polymath John Arbuthnot was baptized. He is best remembered for his contributions to mathematics, his membership in the Scriblerus Club (where he inspired both Jonathan Swift’s Gulliver’s Travels as well as Alexander Pope), and for inventing the figure of John Bull. He published Of the Laws of Chance (1692), the first work on probability published in English, being his translation of a work by…
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chemistry
Wallace Hume Carothers and the Invention of Nylon

Wallace Hume Carothers and the Invention of Nylon

Harald Sack
On April 27, 1896, American chemist and inventor Wallace Hume Carothers was born. He is credited with the invention of nylon, the first synthetic polymer fibre to be spun from a melt. Carothers produced this polyamide, by condensation of adipic acid and hexamethylenediamine working for the DuPont chemical company  as head of organic chemistry research. “Living in the midst of abundance we have the greatest difficulty in seeing that the supply of…
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biology
John James Audubon’s Birds of America

John James Audubon’s Birds of America

Harald Sack
On April 26, 1785, French-American ornithologist, naturalist, and painter John James Audubon was born. He was notable for his expansive studies to document all types of American birds and for his detailed illustrations that depicted the birds in their natural habitats. His major work, a color-plate book entitled The Birds of America (1827–1839), is considered one of the finest ornithological works ever completed. “Never give up listening to the sounds of birds.” –…
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