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Frank Wattendorf
Frank Wattendorf (1906 — 1986) was an American physicist specializing in wind tunnels for research in aerodynamics. Wattendorf is recalled for his report on the wind tunnel at Ötztal that was under construction in Austria during World War II. Wattendorf's report, and one by Theodore von Kármán, spurred on renewed research in aerodynamics. Wattendorf was born in Boston on May 23, 1906. He studied at Harvard University, graduating in 1926. He went on to study aerodynamics at MIT and there met Kármán when he visited that campus. Kármán invited him to come to Aachen, Germany which he did, with his mother. Wattendorf became Kármán's assistant, and they both moved to Caltech in 1926. Wattendorf earned his Ph.D. in California. His thesis, "The effect of curvature on fully developed turbulent flow", was published in the Proceedings of the Royal Society (series A, volume 148, issue #865). The colleagues combined to study the landing of seaplanes in 1929.F. L. Wattendorf & T. von ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind Tunnel
Wind tunnels are large tubes with air blowing through them which are used to replicate the interaction between air and an object flying through the air or moving along the ground. Researchers use wind tunnels to learn more about how an aircraft will fly. NASA uses wind tunnels to test scale models of aircraft and spacecraft. Some wind tunnels are large enough to contain full-size versions of vehicles. The wind tunnel moves air around an object, making it seem as if the object is flying. Most of the time, large powerful fans suck air through the tube. The object being tested is held securely inside the tunnel so that it remains stationary. The object can be an aerodynamic test object such as a cylinder or an airfoil, an individual component, a small model of the vehicle, or a full-sized vehicle. The air moving around the stationary object shows what would happen if the object was moving through the air. The motion of the air can be studied in different ways; smoke or dye can be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Second Sino-Japanese War
The Second Sino-Japanese War (1937–1945) or War of Resistance (Chinese term) was a military conflict that was primarily waged between the Republic of China and the Empire of Japan. The war made up the Chinese theater of the wider Pacific Theater of the Second World War. The beginning of the war is conventionally dated to the Marco Polo Bridge Incident on 7 July 1937, when a dispute between Japanese and Chinese troops in Peking escalated into a full-scale invasion. Some Chinese historians believe that the Japanese invasion of Manchuria on 18 September 1931 marks the start of the war. This full-scale war between the Chinese and the Empire of Japan is often regarded as the beginning of World War II in Asia. China fought Japan with aid from Nazi Germany, the Soviet Union, United Kingdom and the United States. After the Japanese attacks on Malaya and Pearl Harbor in 1941, the war merged with other conflicts which are generally categorized under those conflicts of World War II ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1986 Deaths
The year 1986 was designated as the International Year of Peace by the United Nations. Events January * January 1 **Aruba gains increased autonomy from the Netherlands by separating from the Netherlands Antilles. **Spain and Portugal enter the European Community, which becomes the European Union in 1993. *January 11 – The Sir Leo Hielscher Bridges, Gateway Bridge in Brisbane, Australia, at this time the world's longest prestressed concrete free-cantilever bridge, is opened. *January 13–January 24, 24 – South Yemen Civil War. *January 20 – The United Kingdom and France announce plans to construct the Channel Tunnel. *January 24 – The Voyager 2 space probe makes its first encounter with Uranus. *January 25 – Yoweri Museveni's National Resistance Army Rebel group takes over Uganda after leading a five-year guerrilla war in which up to half a million people are believed to have been killed. They will later use January 26 as the official date to avoid a coincidence of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1906 Births
Events January–February * January 12 – Persian Constitutional Revolution: A nationalistic coalition of merchants, religious leaders and intellectuals in Persia forces the shah Mozaffar ad-Din Shah Qajar to grant a constitution, and establish a national assembly, the Majlis. * January 16–April 7 – The Algeciras Conference convenes, to resolve the First Moroccan Crisis between France and Germany. * January 22 – The strikes a reef off Vancouver Island, Canada, killing over 100 (officially 136) in the ensuing disaster. * January 31 – The Ecuador–Colombia earthquake (8.8 on the Moment magnitude scale), and associated tsunami, cause at least 500 deaths. * February 7 – is launched, sparking a naval race between Britain and Germany. * February 11 ** Pope Pius X publishes the encyclical ''Vehementer Nos'', denouncing the 1905 French law on the Separation of the Churches and the State. ** Two British members of a poll tax collecting expedit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NATO
The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two North American. Established in the aftermath of World War II, the organization implemented the North Atlantic Treaty, signed in Washington, D.C., on 4 April 1949. NATO is a collective security system: its independent member states agree to defend each other against attacks by third parties. During the Cold War, NATO operated as a check on the perceived threat posed by the Soviet Union. The alliance remained in place after the dissolution of the Soviet Union and has been involved in military operations in the Balkans, the Middle East, South Asia, and Africa. The organization's motto is '' animus in consulendo liber'' (Latin for "a mind unfettered in deliberation"). NATO's main headquarters are located in Brussels, Belgium, while ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arnold Air Force Base
Arnold Air Force Base (Arnold AFB) is a United States Air Force base located in Coffee and Franklin counties, Tennessee, adjacent to the city of Tullahoma. It is named for General Henry "Hap" Arnold, the father of the U.S. Air Force. There is no longer an active airfield on the base, as the airfield was decommissioned in 2009. Army aviation assets (helicopters) continue to utilize Arnold as part of missions supporting Fort Campbell, Kentucky or the Tennessee Army National Guard. The base is home to the Arnold Engineering Development Complex (AEDC), the most advanced and largest complex of flight simulation test facilities in the world. The center operates 58 aerodynamic and propulsion wind tunnels, rocket and turbine engine test cells, space environmental chambers, arc heaters, ballistic ranges and other specialized units. AEDC is an Air Force Test Center organization. The commander of Arnold Engineering Development Center is Col. Scott A. Cain, and Mark A. Mehalic is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AGARD
The Advisory Group for Aerospace Research and Development (AGARD) was an agency of NATO that existed from 1952 to 1996. AGARD was founded as an Agency of the NATO Military Committee. It was set up in May 1952 with headquarters in Neuilly sur Seine, France. In a mission statement in the 1982 ''History'' it published, the purpose involved "bringing together the leading personalities of the NATO nations in the fields of science and technology relating to aerospace".Frank Wattendorf & Rolland A. Willaume editors (1982) ''The AGARD History 1952 — 1981'', AGARD Publishing The Advisory Group was organized by panels: :Aerospace medical, avionics, electromagnetic wave propagation, flight mechanics, fluid dynamics, guidance and control, propulsion and energetics, structures and materials, and technical information. In 1958 Theodore von Kármán hired Moe Berg to accompany him to the AGARD conference in Paris. "AGARD's aim was to encourage European countries to develop weapons technology o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Advisory Group
The Scientific Advisory Group of the United States Air Force, later renamed the Scientific Advisory Board, was established in 1944, when General Henry H. Arnold asked Dr. Theodore von Kármán to establish a group of scientists to review the techniques and research trends in aeronautics. The group was asked to evaluate the aeronautical research and development programs and facilities of the Axis powers of World War II, and to provide recommendations for future United States Air Force research and development programs. Von Kármán picked the following scientists for initial members of the group: Hugh Dryden, Frank Wattendorf, Hsue-shen Tsien, T. F. Walkowicz, George S. Schairer, G.E. Valley, Ivan A. Getting, Edward Mills Purcell, Vladimir K. Zworykin, Lee DuBridge, and Norman Ramsey.Theodore von Kármán (1967) ''The Wind and Beyond'', pp 269,70 Little Brown and Company Under von Kármán the group put together several reports for General Arnold, including, "Where We Stand" a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hong Kong
Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China (abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delta in South China. With 7.5 million residents of various nationalities in a territory, Hong Kong is one of the most densely populated places in the world. Hong Kong is also a major global financial centre and one of the most developed cities in the world. Hong Kong was established as a colony of the British Empire after the Qing Empire ceded Hong Kong Island from Xin'an County at the end of the First Opium War in 1841 then again in 1842.. The colony expanded to the Kowloon Peninsula in 1860 after the Second Opium War and was further extended when Britain obtained a 99-year lease of the New Territories in 1898... British Hong Kong was occupied by Imperial Japan from 1941 to 1945 during World War II; British administration resumed after th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yale-in-China
The Yale-China Association (), formerly Yale-in-China, is an independent, nonprofit organization which seeks to develop educational programs in and about China and further understanding between Chinese and American people. Founded in 1901 and originally a Protestant missionary society, Yale-China's work is characterized by long-term relationships to build Chinese institutional capacity. Current programs include the fields of public health and nursing, legal education, English language instruction, American Studies, and cultural exchange for Chinese and American students. Publications include a regular newsletter, biennial report, and the annual Yale-China Health Journal. Establishment The Yale-China Association was first incorporated as the Yale Foreign Missionary Society, and was known informally as Yale-in-China as early as 1913. It was nondenominational from its beginnings and by the 1920s had ceased to be an overtly missionary enterprise. It was re-incorporated in 1934 as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yale University
Yale University is a Private university, private research university in New Haven, Connecticut. Established in 1701 as the Collegiate School, it is the List of Colonial Colleges, third-oldest institution of higher education in the United States and among the most prestigious in the world. It is a member of the Ivy League. Chartered by the Connecticut Colony, the Collegiate School was established in 1701 by clergy to educate Congregationalism in the United States, Congregational ministers before moving to New Haven in 1716. Originally restricted to theology and sacred languages, the curriculum began to incorporate humanities and sciences by the time of the American Revolution. In the 19th century, the college expanded into graduate and professional instruction, awarding the first Doctor of Philosophy, PhD in the United States in 1861 and organizing as a university in 1887. Yale's faculty and student populations grew after 1890 with rapid expansion of the physical campus and sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
