| JULY 9 - BIRTHS | |
| Oliver Wolf Sacks | |
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English neurologist and writer. Many of his books relate case histories of neurologically damaged people. His empathy with those afflicted with strange conditions, including. Tourette's syndrome, amnesia, and autism, has been the hallmark of his writings. In his first book, Migraine: Evolution of a Common Disorder (1970, he began his approach of considering mental and emotional states while stressing links between them and physical afflictions. In the late 1960's in New York, he encountered some 80 people suffering from a "sleeping sickness" (known from its spread around the world about 1916-20). He experimented by giving some of them the drug L-DOPA and obtained seemingly amazing results, an "awakening," but most soon regressed. |
| Ben R. Mottelson | |
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American-Danish physicist, born in Chicago, Ill., who shared the 1975 Nobel Prize for Physics with Aage N. Bohr and James Rainwater for "for the discovery of the connection between collective motion and particle motion in atomic nuclei and the development of the theory of the structure of the atomic nucleus based on this connection." This work in determined the asymmetrical shapes of certain atomic nuclei and the reasons behind such asymmetries. Later research investigated the fact that nuclear matter has properties reminiscent of superconductors. |
| John Wheeler | |
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John Archibald Wheeler was the first American physicist involved in the theoretical development of the atomic bomb. He also originated a novel approach to the unified field theory. Wheeler was awarded the 1997 Wolf Prize "for his seminal contributions to black hole physics, to quantum gravity, and to the theories of nuclear scattering and nuclear fission." After recognizing that any large collection of cold matter has no choice but to yield to the pull of gravity and undergo total collapse, Wheeler first coined the term "black hole" in 1967. |
| Percy Spencer | |
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Percy Le Baron Spencer invented the microwave oven. In 1940, Sir John Randall and Dr. H. A. Boot invented the magnetron tube to produce radar microwaves. After the war, Dr. Percy Spencer at the Raytheon Company was investigating the magnetron tube. During one experiment, he discovered that a chocolate bar in his pocket had totally melted, though the heating effect of microwaves was known earlier. Dr. Spencer deduced the magnetron radiation had melted the chocolate, not his body heat. This led Spencer to researched cooking food. The first commercial microwave ovens were made for restaurants. |
| Franz Boas | |
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German-born American anthropologist who is best known for his work with the Kwakiutl Indians from Northern Vancouver, B.C., Canada. While studying the Kwakiutl, he established a culture-centred school of thought in anthropology that came to the forefront in the 20th century. He maintained that cultural traits - behaviors, beliefs, and symbols - were to be examined in their local context with historical, social and geographic conditions. The approach he established was continued by his students, which included Margaret Mead, Ruth Benedict, linguist Edward Sapir and Alfred L. Kroeber, who in turn influenced Claude Lévi-Strauss.« |
| Nikola Tesla | |
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Serbian-American inventor and researcher (born on the stroke of midnight) who designed and built the first alternating current induction motor in 1883. He emigrated to the United States in 1884. Having discovered the benefits of a rotating magnetic field, the basis of most alternating-current machinery, he expanded its use in dynamos, transformers, and motors. Because alternating current could be transmitted over much greater distances than direct current, George Westinghouse bought patents from Tesla the system when he built the power station at Niagara Falls to provide electricity power the city of Buffalo, NY.« |
| Edwin Houston | |
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Edwin J(ames) Houston was a U.S. electrical engineer. Together with another Philadelphia high school teacher, Elihu Thomson, he experimented with electricity, invented (patented 1881) and manufactured arc street-lighting. He presented the first paper, Notes on Phenomena in Incandescent Lamps, to The American Institute of Electrical Engineers when it began in 1884 (AIEE - the predecessor society of the present IEEE, The Institute of Electrical and Electronics Engineers, Inc.) . The merger of Thomson-Houston and Edison General Electric companies (1892) formed General Electric. In 1894 he joined with Arthur Kennelly (who resigned from Edison's laboratory) to form a consulting company. |
| Sir George Darwin | |
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Sir George (Howard) Darwin, the second son of the famous biologist Charles Darwin, was an English astronomer who championed a theory (no longer accepted) that the Moon was once part of the Earth, in what is now the Pacific Ocean. His was the first mathematical analysis of the evolution of Earth's Moon. He suggested that since the effect of the tides has been to slow the Earth's rotation and to cause the Moon to recede from the Earth, then by extrapolating back 4.5 billion years ago the Moon and the Earth would have been very close, with a day being less than five hours. Before this time the two bodies would actually have been one, until the Moon was torn away from the Earth by powerful solar tides that would have deformed the Earth every 2.5 hours. |
| Wilhelm His | |
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Wilhelm His, born in Basel, Switzerland, was a German anatomist and embryologist who created the science of histogenesis, or the study of the embryonic origins of different types of animal tissue. His discovery, in 1886, that each nerve fibre stems from a single nerve cell was essential to the development of the neuron theory. He invented the microtome - a device to slice very thin serial specimens for microscope slides (1865). With it, he could examine embryos. He was the first to accurate describe the human embryo. |
| Jean Jacques Theophile Schloesing | |
French soil scientist who (with A. Muntz) proved (1877) that nitrification is a biological process in the soil by using chloroform vapors to inhibit the production of nitrate. Although years before (1859), Louis Pasteur theorized that the process was biological, he was never able to prove it. Schloesing and Muntz used antiseptic followed by heating to sterilize a soil sample, thus completely halting the nitrification process. They demonstrated that by mixing a small amount of non-sterile soil into sterile soil, the nitrification process would be restored. One of the greatest practical applications of this knowledge has been to utilize a community of nitrifying bacteria in the treatment of sewerage«. [Schloesing, J., and Muntz, A., 1877, Sur La Nitrification Par Les Ferments Organises, Comptes Rendus de l’Academie des Sciences, Paris, LXXXXIV:301] |
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| Elias Howe | |
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Elias Howe, American inventor, was born in Spencer, Mass. It was Walter Hunt, in 1834, who built America's first sewing machine, then thought about it as a destroyer of home stitchers' jobs, and didn't pursue it. Howe did. Howe was granted a patent on his own machine on 10 Sep 1846. Commercial success came slowly, requiring the defense of his patent against Isaac Singer's better marketed machine. Eventually he gained riches, but died young at 49. By then, his sewing machine helped revolutionize garment manufacture in the factory and in the home. |
| Thomas Davenport | |
American inventor of what was probably the first commercially successful electric motor, which he used with great ingenuity to power a number of established inventions. Though several other inventors had experimented with motors, Davenport was the first to secure a U.S. patent (No. 132 on 25 Feb 1837) for his direct current motor. He incorporated the concept of the electromagnet invented by Joseph Henry in a way that produced a rotary motion using his own idea of a commutator and brushes to control the direction of current flow. He used a motor he built to power shop machinery, and also built the first electric model railroad car. |
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| Jacob Perkins | |
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Jacob Perkins was an American inventor, of Newburyport, Mass., a Freemason, who produced innovations in diverse fields. For example, in 1794, under his patent of January 16 of that year, he made the first nails which were both cut and headed by machine in America. Around 1817, he installed a hot air furnace of his own design in the Massachusetts Medical College. While living in London, England, he advocated high pressure steam techniques and designed in 1827-28 a steam gun for the French Government. Also, Perkins advanced the art of engraving and platemaking for bank notes. In 1834, he was issued the first US patent for a refrigerating machine for sulphuric ether compression in a closed cycle. (It utilized a concept displayed by Oliver Evans, 1805.) Back in England, he printed 64 million of the first penny postage stamp in 1840. |
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| JULY 9 - DEATHS | |
| Douglas Chapman | |
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Douglas George Chapman was a Canadian-born U.S. mathematical statistician and an expert on wildlife statistics. He was one of the scientific advisors to the International Whaling Commission that warned in the 1960s that the number of whales being taken by the whaling industry was far in excess of what the population could stand, and proposed annual fin whale catch quotas that would permit the depleted populations of this species to recover. His later research on fish farming expanded to include mollusk aquaculture and he directed a program to develop quantitative methods to aid in the management of fisheries resources.« |
| Loren Eiseley | |
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Loren (Corey) Eiseley was a U.S. anthropologist, educator, and was one of the preeminent literary naturalists of our time. He wrote for the lay person in eloquent, poetic style about anthropology, the history of the civilatization and our relationship with the natural world. Scientific American published Loren Eisleys' first popular essay, The Folsum Mystery (1942). Eiseley's best-known book, The Immense Journey, combines science and humanism in a collection of essays, many with origins to his own early Nebraska experiences. Eiseley became known internationally, winning major prizes and honorary degrees for his unique work. |
| King C. Gillette | |
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King Camp Gillette was the inventor and manufacturer of the safety razor with disposable blades. After persistent efforts to invent something that everyone would use, by 1895 produced a crude version of a disposable razor blade. it took another six years to refine his invention. On 15 Nov 1904 he was issued U.S. patent No. 775,134 for his idea and founded the Gillette Safety Razor Company in Boston, Mass., to make his razor and blades. In 1903, he sold 168 blades, but in the following year he sold 90,000 razors and over 12 million blades. Although he remained president of the company until 1931, he retired to Los Angeles in 1913, having become a millionaire. A utopian, he wrote four books translating his business experience into social theories, culminating with The People's Corporation (1924).« |
| Paul Broca | |
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French surgeon who was closely associated with the development of modern physical anthropology in France and whose study of brain lesions contributed significantly to understanding the origins of aphasia, the loss or impairment of the ability to form or articulate words. His research was largely devoted to the comparative study of the craniums of the various human races. He established (1861) that the seats of articulate speech were in the left frontal region of the brain, now known as the convolution of Broca. This was the first time an anatomical link had been made between a location and in the brain and its function. He founded the anthropology laboratory at the École des Hautes. |
| Count Amedeo Avogadro | |
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Italian chemist and physicist who found that at the same temperature and pressure equal volumes of all perfect gases contain the same number of particles, known as Avogadro's Law (1811) leading to the Avogadro's constant being 6.022 x 1023 units per mole of a substance. He realized the particules could be either atoms, or more often, combinations of atoms, for which he coined the word "molecule." This explained Gay-Lussac's law of combining volumes (1809). Further, Avogadro determined from the electrolysis of water that it contained molecules formed from two hydrogen atoms for each atom of oxygen, by which the individual oxygen atom was 16 times heavier than one hydrogen atom (not 8 times as suggested earlier by Dalton.)« |
| JULY 9 - EVENTS | |
| Tzar DNA identified | |
| Voyager 2 | |
| Thresher submarine | |
| Nobelium | |
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| Barbituric acid | |
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In 1864 Adolf von Baeyer, a twenty-nine-year-old assistant of Friedrich August Kekule (the discoverer of the molecular structure of benzene) in Ghent, synthesized barbituric acid, the first barbiturate. In 1903, the German chemist Emil Fischer and his collaborator Joseph von Mering modified a class of drugs originally synthesized in 1864 in a way that made them effective as sedatives and hypnotics. Fischer and Mering realized that their new drug, "diethyl barbituric acid," or barbital, was a sedative. It improved vastly upon the congeries of previous sedatives by not tasting unpleasant, by having few side effects, and by acting at therapeutic levels far beneath the toxic dose (unlike potassium bromide, which tasted awful and had a therapeutic level close to the toxic dose). Diallyl barbituric acid is a colourless crystalline organic compound. used in medicine as a soporific. |
| Heart surgery | |
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| Doughnut cutter | |
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| Corncob pipe | |
| Corncob pipe | |
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| First U.S. natural gas well | |
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| Leather splitting machine | |
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| Kepler's Universe | |
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