| JUNE 15 - BIRTHS | |
| Herbert Alexander Simon | |
1978 (source) |
American social scientist who was a pioneer of the development of computer artificial intelligence. In 1956, with his long-time colleague Allen Newell, Simon produced the computer program, The Logic Theorist, a computer program that could discover proofs of geometric theorems. It was the first computer program capable of thinking, and marked the beginning of what would become known as artificial intelligence. It proved many of the theorems of symbolic logic in Whitehead and Russell's Principia Mathematica. He is further known for his contributions in fields including psychology, mathematics, statistics, and operations research, all of which he synthesized in a key theory for which he won the 1978 Nobel Prize for economics. |
| Thomas H. Weller | |
(source) |
Thomas Huckle Weller was an American physician and virologist who was the corecipient (with John Enders and Frederick Robbins) of the Nobel Prize for Physiology or Medicine in 1954 for the successful cultivation of poliomyelitis virus in tissue cultures. This made it possible to study the virus "in the test tube," a procedure that led to the development of polio vaccines. |
| Erik H. Erikson | |
(source) |
Erik H(omburger) Erikson was a German-born psychoanalyst. He trained under Anna Freud (1927–33), specializing in child psychology, then emigrated to the U.S. He taught at Harvard, engaged in a variety of clinical work, and widened the scope of psychoanalytic theory to take greater account of social, cultural, and other environmental factors. In 1950, he profoundly influenced the study of human development with the publication of Childhood and Society, in which he divided human development, from infancy to old age, into a life cycle of eight stages. His later works dealt with ethical concerns in the modern world. |
| Hubertus Strughold | |
(source) |
German-American physiologist, known as the "father of space medicine." In the late 1920's, he began investigaing the physiological aspects of what he called the "vertical frontier" in Germany, when even simple aeromedicine was considered far-fetched. After WW II, the United States Air Force School of Aviation Medicine moved* Strughold to America. to join their staff. Among the fundamental studies initiated were those in acceleration, noise and vibration, atmospheric control, weightlessness and nutrition. He invented the space cabin simulator for testing human reactions in a manned satellite, and contributed enormously to such space-travel problems as weightlessness, visual disturbances, and disruption of normal time cycles. *The United States used Nazi scientists during the Cold War to beat the Russians in the space race. For that help, some Nazis avoided war crimes trials. During WW II, Strughold was the Nazi director of medical research for aviation, in Germany, and is said to have experimented on, tortured and killed Jews and Gypsies at the Dachau concentration camp. Prisoners were frozen to near death and rewarmed to see how quickly they would recover. |
| Georg Wüst | |
(source) |
Georg Adolf Otto Wüst was a German oceanographer who, by collecting and analyzing many systematic observations, developed the first essentially complete understanding of the physical structure and deep circulation of the Atlantic Ocean. He used the distribution of ocean properties to obtain clues about motions within the ocean. Wüst also invented the concept of the "core layer," the layer of water within the ocean that has the most extreme values with respect to one or more properties and therefore is the least mixed and thus shows the path of motion. |
| Juan José D'Elhuyar | |
(source) |
![]() Spanish chemist and mineralogist who, assisted his younger brother Faustus, separated tungsten metal from its wolframite ore (1783). Two years earlier, Swedish chemist Carl Scheele discovered tungstic acid, though did not isolate the elemental form, from a mineral known since about 1758 as tung sten (Swedish, heavy stone; which is now known as scheelite). The Elhuyar brothers, working at the Seminary of Bergara, succeeded in extracting the metal by reducing tungstic acid with charcoal. For the first time, Basque scientists entered the history of science. Each became a directorof a school of mines, but in different countries. Although Juan José discovered tungsten metal, Fausto became better known.« [Image right: wolframite] |
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| JUNE 15 - DEATHS | |
| John Atanasoff | |
c. 1984 (source) |
John Vincent Atanasoff was a U.S. physicist who was belatedly credited (1973) with developing the first electronic digital computer. Built in 1937-42 at Iowa State University by Atanasoff and a graduate student, Clifford Berry, it introduced the ideas of binary arithmetic, regenerative memory, and logic circuits. These ideas were communicated from Atanasoff to John Mauchly, who used them in the design of the better-known ENIAC built and patented several years later. On 19 Oct 1973, a US Federal Judge signed his decision following a lengthy court trial which declared the ENIAC patent invalid and named Atanasoff the original inventor of the electronic digital computer, the Atanasoff- Berry Computer or the ABC. |
| Wendell Meredith Stanley | |
(source) |
American biochemist who in 1946 received (with John Northrop and James Sumner) the Nobel Prize for Chemistry for his work in the purification and crystallization of viruses, thus demonstrating their molecular structure. Impressed by John Northrop's success in crystallizing proteins, Northrop applied those techniques to his extracts of the tobacco mosaic virus (TMV). By 1935, he had obtained thin rodlike crystals of the virus and demonstrated that TMV still retained its infectivity after crystallization. At first, some scientists were skeptical - thinking that viruses, being similar to conventional living organisms could not exist in crystalline form. During WW II, he worked on isolating the influenza virus and prepared a vaccine against it. |
| Eduardo Torroja (y Miret) | |
(source) |
![]() Spanish engineer who pioneered the architectural use of concrete-shell structures. With José Maria Aguirre he founded (1934) an institute to "encourage progress in all areas of construction, sponsoring and disseminating scientific research and studying methods to improve construction techniques in whatsoever respect." He developed new uses and building techniques for reinforced concrete. Examples of his designs include the 156-ft (48 m) diameter shell of the Algeciras market (1933), and the 73-ft (22-m) cantilevered roof of the Madrid hippodrome (1935). From the 1920s to the 1960s, he designed some of Spain's finest bridges, aqueducts, churches and stadiums.« [Image right: cantilevered roof of the Madrid hippodrome] |
| Charles Francis Brush | |
(source) |
U.S. inventor and industrialist who devised an electric arc lamp and a generator that produced a variable voltage controlled by the load and a constant current. It was adopted throughout the United States and abroad during the 1880's. The arc light preceded Edison's incandescent light bulb in commercial use and was suited to applications where a bright light was needed, such as street lights and lighting in commercial and public buildings. He assembled his first dynamo in the summer of 1876, resulting in a patent for his Improvement in Magneto-Electric Machines, issued 24 Apr 1877 (US No. 189997). He then developed an arc light that was regulated by a combination of electrical and mechanical means limited by a "ring clutch". |
| William Le Baron Jenney | |
(source) |
![]() American civil engineer and architect whose technical innovations were of primary importance in the development of the skyscraper. During the Civil War he served as an engineering officer. By 1868 he was a practicing architect who had designed a Swiss Chalet style home with an innovative open floor plan, years before Frank Lloyd Wright worked with the concept. He also made a name for himself as a town planner. However, Jenney's greatest fame came from his large commercial buildings. His Home Insurance Building [above] in Chicago was one of the first buildings to use a metal skeleton for support, which became the standard for American skyscraper design. (source) |
| Carl Wernicke | |
(source) |
German neurologist who related nerve diseases to specific areas of the brain. Interested in psychiatry, traditionally he studied anatomy initially and neuropathology later. He published a small volume on aphasias (disorders interfering with the ability to communicate in speech or writing) which vaulted him into international fame. In it was precise pathoanatomic analysis paralleling the clinical picture. He is best known for his work on sensory aphasia and poliomyelitis hemorrhagia superior. Both of these descriptions bear his name, as well as a form of encephalopathy induced by thiamine deficiency. He wrote books on the disorders of the internal capsule and textbooks on diseases of the nervous system. Wernicke died in a road accident. |
| Joseph Dixon | |
(source) |
American inventor and manufacturer who pioneered in the industrial use of graphite and many other innovations. As a printer and a photographer, he designed a mirror into a camera that was the forerunner of the viewfinder, patented a double-crank steam engine, evolved a method of printing banknotes to foil counterfeiters, and patented a new method for tunneling under water. As a manufacturer and entrepreneur, Joseph Dixon produced the first pencil made in the U.S. and was responsible for the development of the graphite industry there. When he died, the Joseph Dixon Crucible Company was the largest manufacturer of graphite products in the world. Listed among his friends were such great American inventors as Fulton, Morse, and Bell. |
| Jean-François Pilatre de Rozier | |
French physicist and aeronaut who, with Marquis Francois Laurant d'Arlandes, became the first men to fly. Their hot-air balloon, built by the Montgolfier brothers, lifted off from La Muettte, a royal palace in the Bois de Boulogne, Paris. They flew nearly 6 miles in 25 mins, reaching an altitude of around 300-ft. King Louis XVI, who offered to send two prisoners for the test flight, but Rozier wanted to deny criminals the glory of being the first men to go into the atmosphere. Rozier died in attempt to cross English Channel in an apparatus composed of two balloons, one filled with hydrogen and the other with warm air. Thus, he was also the first man to die in an air crash.« |
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| JUNE 15 - EVENTS | |
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| Transatlantic plane flight | |
(source) |
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| First U.S. safety razor patent | |
(USPTO) |
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| Celluloid | |
(source) |
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| First U.S. gallstone operation | |
(source) |
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| Vulcanized rubber | |
(source) |
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| Lightning experiment | |



