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Meyer Rubin
Meyer Rubin (February 17, 1924 – May 2, 2020) was an American geologist known for his radiocarbon dating work with the United States Geological Survey. Early career After graduating from Englewood Technical Prep Academy, Englewood High School, South Side, Chicago, in 1941, he attended the Woodrow Wilson Junior College, Chicago (now the Kennedy–King College). In the spring of 1943, Rubin enlisted into a University of Chicago run pre-meteorology training program (class "B") for the United States Army Air Forces (AAF); active duty effective March 3, 1943.HEADQUARTERS, SIXTH SERVICE COMMAND, SERVICES OF SUPPLY, Special Orders No. 31. (5 February 1943) Basic training was at Fort Sheridan, Illinois, Fort Sheridan with classes held at the University of Michigan. Rubin finished his training in September 1943, and was commissioned as a Second Lieutenant. He was shipped off first to Port Moresby, New Guinea, and then later to the Philippines, to help forecast weather for AAF long ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago
Chicago is the List of municipalities in Illinois, most populous city in the U.S. state of Illinois and in the Midwestern United States. With a population of 2,746,388, as of the 2020 United States census, 2020 census, it is the List of United States cities by population, third-most populous city in the United States after New York City and Los Angeles. As the county seat, seat of Cook County, Illinois, Cook County, the List of the most populous counties in the United States, second-most populous county in the U.S., Chicago is the center of the Chicago metropolitan area, often colloquially called "Chicagoland" and home to 9.6 million residents. Located on the shore of Lake Michigan, Chicago was incorporated as a city in 1837 near a Chicago Portage, portage between the Great Lakes and the Mississippi River, Mississippi River watershed. It grew rapidly in the mid-19th century. In 1871, the Great Chicago Fire destroyed several square miles and left more than 100,000 homeless, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queen Of Sheba
The Queen of Sheba, also known as Bilqis in Arabic and as Makeda in Geʽez, is a figure first mentioned in the Hebrew Bible. In the original story, she brings a caravan of valuable gifts for Solomon, the fourth King of Israel and Judah. This account has undergone extensive elaborations in Judaism, Ethiopian Christianity, and Islam. It has consequently become the subject of one of the most widespread and fertile cycles of legends in West Asia and Northeast Africa, as well as in other regions where the Abrahamic religions have had a significant impact. Modern historians and archaeologists identify Sheba as one of the South Arabian kingdoms, which existed in modern-day Yemen. However, because no trace of her has ever been found, the Queen of Sheba's existence is disputed among some historians. Narrative Hebrew The Queen of Sheba (, in the Hebrew Bible; , in the Septuagint; ; ), whose name is not stated, came to Jerusalem "with a very great retinue, with camels bearing sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King Solomon
King is a royal title given to a male monarch. A king is an absolute monarch if he holds unrestricted governmental power or exercises full sovereignty over a nation. Conversely, he is a constitutional monarch if his power is restrained by fixed laws. Kings are hereditary monarchs when they inherit power by birthright and elective monarchs when chosen to ascend the throne. *In the context of prehistory, antiquity and contemporary indigenous peoples, the title may refer to tribal kingship. Germanic kingship is cognate with Indo-European traditions of tribal rulership (cf. Indic ''rājan'', Gothic ''reiks'', and Old Irish '' rí'', etc.). *In the context of classical antiquity, king may translate in Latin as '' rex'' and in Greek as ''archon'' or ''basileus''. *In classical European feudalism, the title of ''king'' as the ruler of a ''kingdom'' is understood to be the highest rank in the feudal order, potentially subject, at least nominally, only to an emperor (harking back ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reston, Virginia
Reston is a census-designated place in Fairfax County, Virginia, United States, and a principal city of both Northern Virginia and the Washington metropolitan area. As of the 2020 U.S. census, Reston's population was 63,226. Founded in 1964, Reston was influenced by the Garden city movement, Garden City movement that emphasized planned, self-contained communities that intermingled green space, residential neighborhoods, and commercial development. The intent of Reston's founder, Robert E. Simon, was to build a town that would revolutionize Post-war, post–World War II concepts of land use and residential/corporate development in suburban America. History Colonial era In the early days of Colonial history of the United States, Colonial America, the land that is present-day Reston was part of the Northern Neck Proprietary, a vast grant by Charles II of England, King Charles II to Thomas Fairfax, 6th Lord Fairfax of Cameron, Lord Thomas Fairfax that extended from the Potomac Rive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wisconsin Glacial Stage
The Wisconsin glaciation, also called the Wisconsin glacial episode, was the most recent glacial period of the North American ice sheet complex, peaking more than 20,000 years ago. This advance included the Cordilleran Ice Sheet, which nucleated in the northern North American Cordillera; the Innuitian ice sheet, which extended across the Canadian Arctic Archipelago; the Greenland ice sheet; and the massive Laurentide Ice Sheet, which covered the high latitudes of central and eastern North America. This advance was synchronous with global glaciation during the last glacial period, including the North American alpine glacier advance, known as the Pinedale glaciation. The Wisconsin glaciation extended from about 75,000 to 11,000 years ago, between the Sangamonian Stage and the current interglacial, the Holocene. The maximum ice extent occurred about 25,000–21,000 years ago during the last glacial maximum, also known as the ''Late Wisconsin'' in North America. This glaciation r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California, San Diego
The University of California, San Diego (UC San Diego in communications material, formerly and colloquially UCSD) is a public university, public Land-grant university, land-grant research university in San Diego, California, United States. Established in 1960 near the pre-existing Scripps Institution of Oceanography in La Jolla, UC San Diego is the southernmost of the ten campuses of the University of California. It offers over 200 undergraduate and graduate degree programs, enrolling 33,096 undergraduate and 9,872 graduate students, with the second largest student housing capacity in the nation. The university occupies near the Pacific coast. UC San Diego consists of 12 undergraduate, graduate, and professional schools as well as 8 undergraduate residential colleges. The university operates 19 organized research units as well as 8 School of Medicine research units, 6 research centers at Scripps Institution of Oceanography, and 2 multi-campus initiatives. UC San Diego is als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scripps Institute Of Oceanography
Scripps Institution of Oceanography (SIO) is the center for oceanography and Earth science at the University of California, San Diego. Its main campus is located in La Jolla, California, La Jolla, with additional facilities in Point Loma, San Diego, Point Loma. Founded in 1903 and incorporated into the University of California system in 1912, the institution has since broadened its research focus to encompass the physics, chemistry, geology, biology, and climate of the Earth. The institution awards the Nierenberg Prize annually to recognize researchers with exceptional contributions to science in public interest. History Founding Scripps Institution of Oceanography can trace its beginnings back to William Emerson Ritter, William Ritter, a biologist originally from Columbia County, Wisconsin, Wisconsin. In 1891, Ritter was offered a job teaching biology at the University of California, Berkeley and married Mary Elizabeth Bennett Ritter, Mary Bennett. Their honeymoon and subs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wisconsin Glaciation
The Wisconsin glaciation, also called the Wisconsin glacial episode, was the most recent glacial period of the North American ice sheet complex, peaking more than 20,000 years ago. This advance included the Cordilleran Ice Sheet, which nucleated in the northern North American Cordillera; the Innuitian ice sheet, which extended across the Canadian Arctic Archipelago; the Greenland ice sheet; and the massive Laurentide Ice Sheet, which covered the high latitudes of central and eastern North America. This advance was synchronous with global glaciation during the last glacial period, including the North American Glacier#Classification_by_size,_shape_and_behavior, alpine glacier advance, known as the Pinedale glaciation. The Wisconsin glaciation extended from about 75,000 to 11,000 years ago, between the Sangamonian Stage and the current interglacial, the Holocene. The maximum ice extent occurred about 25,000–21,000 years ago during the last glacial maximum, also known as the ''Late W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene Glaciation
The Quaternary glaciation, also known as the Pleistocene glaciation, is an alternating series of glacial and interglacial periods during the Quaternary period that began 2.58 Ma (million years ago) and is ongoing. Although geologists describe this entire period up to the present as an "ice age", in popular culture this term usually refers to the most recent glacial period, or to the Pleistocene epoch in general. Since Earth still has polar ice sheets, geologists consider the Quaternary glaciation to be ongoing, though currently in an interglacial period. During the Quaternary glaciation, ice sheets appeared, expanding during glacial periods and contracting during interglacial periods. Since the end of the last glacial period, only the Antarctic and Greenland ice sheets have survived, while other sheets formed during glacial periods, such as the Laurentide Ice Sheet, have completely melted. The major effects of the Quaternary glaciation have been the continental erosion of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acetylene
Acetylene (Chemical nomenclature, systematic name: ethyne) is a chemical compound with the formula and structure . It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. Pure acetylene is odorless, but commercial grades usually have a marked odor due to impurities such as divinyl sulfide and phosphine.Compressed Gas Association (1995Material Safety and Data Sheet – Acetylene As an alkyne, acetylene is Saturated and unsaturated compounds, unsaturated because its two carbon atoms are Chemical bond, bonded together in a triple bond. The carbon–carbon triple bond places all four atoms in the same straight line, with CCH bond angles of 180°. The triple bond in acetylene results in a high energy content that is released when acetylene is burned. Discovery Acetylene was discovered in 1836 by Edmund Davy, who identified it as a "new carburet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Willard Libby
Willard Frank Libby (December 17, 1908 – September 8, 1980) was an American physical chemist noted for his role in the 1949 development of radiocarbon dating, a process which revolutionized archaeology and palaeontology. For his contributions to the team that developed this process, Libby was awarded the Nobel Prize in Chemistry in 1960. A 1931 chemistry graduate of the University of California, Berkeley, from which he received his doctorate in 1933, he studied radioactive elements and developed sensitive Geiger counters to measure weak natural and artificial radioactivity. During World War II he worked in the Manhattan Project's Substitute Alloy Materials (SAM) Laboratories at Columbia University, developing the gaseous diffusion process for uranium enrichment. After the war, Libby accepted a professorship at the University of Chicago's Institute for Nuclear Studies, where he developed the technique for dating organic compounds using carbon-14. He also discovered th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
