| SEPTEMBER 13 - BIRTHS | |
| Horace Welcome Babcock | |
American astronomer, who with his father, Harold Babcock, was first to measure the distribution of magnetic fields over the solar surface. Horace invented and built many astronomical instruments, including a ruling engine which produced excellent diffraction gratings, the solar magnetograph, and microphotometers, automatic guiders, and exposure meters for the 100 and 200-inch telescopes. By combining his polarizing analyzer with the spectrograph he discovered magnetic fields in other stars. He developed important models of sunspots and their magnetism, and was the first to propose adaptive optics (1953). |
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| Sir Robert Robinson | |
British chemist who received the 1947 Nobel Prize for Chemistry for his research on a wide range of organic compounds, notably alkaloids (complex, naturally occurring, nitrogen-containing organic compounds that can have profound effects on living things). In his early research, he studied plant pigments and synthesized anthocyanins and flavones. Later, working with alkaloids, he discovered the structures of morphine (1925) and strychnine (1946). |
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| Wilhelm Johann Eugen Blaschke | |
German mathematician whose major contributions to geometry concerned kinematics and differential geometry. Kinetic mapping (important later in the axiomatic foundations of various geometries) he both discovered and established it as a tool in kinematics. He also initiated topological differential geometry (the study of invariant differentiable mappings). |
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| Wilhelm Filchner | |
German scientist and explorer who led the German Antarctic expedition of 1911-12. In Tibet (1926-28) he conducted cartographic surveys and magnetic observations. He also made a magnetic survey of Nepal (1939-40) |
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| Constantin Carathéodory | |
German mathematician of Greek origin who made important contributions to the theory of real functions, to the calculus of variations, and to the theory of point-set measure. He also contributed to thermodynamics and helped develop Einstein's special theory of relativity. |
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| Adolf Meyer | |
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Swiss-American psychiatrist (1900-40), whose teaching and influential work has become a part of psychiatric theory and practice in English-speaking countries. Already trained in neuroanatomy and neurophysiology when he emigrated to the U.S. (1892), from working at mental institutions, he began to attribute the disorder in mental illness not to brain pathology, but to a personality dysfunction. He recognized social environment as an influence in mental disorders. Throughout his years at Johns Hopkins University as professor of psychiatry (1910-41), he taught that in the diagnosis and treatment of mental illness, the patient must be evaluated as a whole person. |
| Milton Snavely Hershey | |
American manufacturer who founded the Hershey Chocolate Corporation. Apprenticed to a confectioner until 1876, he then opened his own candy shop in Philadelphia, Penn. Though that venture was unsuccessful, a few years later, he innovated the production of caramels by using fresh milk, with great success. In the 1890's he diversified into chocolate, and in 1903 began building what became the world's largest chocolate manufacturing plant. That site became Hershey, Pennsylvania. He used his fortune philathropically. (eb) |
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| Hans Christian Joachim Gram | |
Danish pharmacologist and pathologist, who invented the Gram stain, the best known and most widely used bacteriological staining method that is almost always the first test performed for the identification of bacteria.. |
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| Walter Reed | |
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US Army pathologist and bacteriologist who led the experiments that proved that yellow fever is transmitted by the bite of a mosquito. The Walter Reed Hospital, Washington, D.C., was named in his honour. |
| Sir Andrew Noble | |
(Baronet) Scottish physicist and gunnery expert, known as a founder of the science of ballistics. He invented the chronoscope, a device for measuring very small time intervals, and in about 1862, he used it to measure the velocity of shot in gun barrels. His investigations in ballistics led to the redesign of guns, new methods of loading, and development of new types of gunpowder. |
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| Oliver Evans | |
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American millwright and inventor who invented the first automatic corn mill, pioneered the high-pressure steam engine (US patent, 1790) and created the first continuous production line (1784). By about age 19, he invented a machine for bending and cutting off the wires in textile carding combs. His ideas for an automatic corn mill began in 1782, but the invention's development was not completed until 1790. The mill used bucket elevators to raise the grain, conveying devices including a horizontal screw conveyor, and a "hopper boy" to cool and dry the meal before gathering it into a hopper feeding the bolting cylinder. Together, this took incoming wheat and delivered flour packed in barrels. |
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| SEPTEMBER 13 - DEATHS | |
| August Krogh | |
Schack August Steenberg Krogh was a Danish physiologist who received the Nobel Prize for Physiology or Medicine in 1920 for his discovery of the motor-regulating mechanism of capillaries (small blood vessels). Working with frogs, which he injected with Indian ink shortly before killing, he showed that in sample areas of resting muscle the number of visible (stained) capillaries was about 5 per square millimeter; in stimulated muscle, however, the number was increased to 190 per square millimeter. From this he concluded that there must be a physiological mechanism to control the action of the capillaries in response to the needs of the body (not just flow due to heart beating). Krogh's research linked exercise physiology with nutrition and metabolism. |
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| Robert Hope-Jones | |
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British-American organ builder whose innovations created the theatre organ and its orchestral sounds. In his early career, in England, as chief electrician with the Lancashire and Cheshire Telephone Company he gained experience with low voltage electrical circuits which led him to their application to the church organ. As an organ-builder, his many inventions included the Diaphone, (GB patent 21,414 in 1894, improved as GB patent 21,558 in 1895). In 1897, he patented a foghorn (No. 21,389) for use in lighthouses and still used today. He emigrated to the U.S. in 1903, where he eventually sold his patents to the Wurlitzer company, N. Tonawanda, NY. Despite his productive years contributing to organ devices and pipes, he died prematurely by suicide.« |
| SEPTEMBER 13 - EVENTS | |
| Taconite | |
| Rail detector car | |
| Highest world shade temperature record | |
| Yellow-fever | |
| First U.S. car accident fatality | |
| Celluloid photographic film | |
| Ice shipped to Calcutta | |
Tudor (source) |
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| First U.S. rhino exhibit | |

