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Escape And Evasion Map
Evasion charts or escape maps are maps made for servicemembers, and intended to be used when caught behind enemy lines to assist in performing escape and evasion. Such documents were secreted to prisoners of war by various means to aid in escape attempts. During World War II, these clandestine maps were used by many American, British, and allied servicemen to escape from behind enemy lines. Special material was used for this purpose, due to the need for a material that would be hardier than paper, and would not tear or dissolve in water.Garber, Megan. 2013"How Monopoly Games Helped Allied POWs Escape During World War II."The Atlantic. January 2013. Evasion charts produced for the US, UK, and NATO were printed on vinyl sheet in the 1960s. Modern evasion charts are made of Tyvek 'paper', which permit printing of minute detail while remaining waterproof and tear-resistant. Many of these maps were also used in clandestine wartime activities. The cloth maps were sometimes hidde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OSS Escape And Evasion Map - Flickr - The Central Intelligence Agency
OSS or Oss may refer to: Places * Oss, a city and municipality in the Netherlands * Osh Airport, IATA code OSS People with the name * Oss (surname), a surname Arts and entertainment * O.S.S. (film), ''O.S.S.'' (film), a 1946 World War II spy film about Office of Strategic Services agents * O.S.S. (TV series), ''O.S.S.'' (TV series), a British spy series which aired in 1957 in the UK and the US * Open Source Shakespeare, a non-commercial website with texts and statistics on Shakespeare's plays * Old Syriac Sinaiticus, a Bible manuscript * Organization of Super Spies, a fictional organization in the Spy Kids (franchise), ''Spy Kids'' franchise Education * ÖSS (Öğrenci Seçme Sınavı), a former university entrance exam in Turkey * Options Secondary School, Chula Vista, California * Otto Stern School for Integrated Doctoral Education, Frankfurt am Main, Germany * Outram Secondary School, Singapore Organizations * Observatoire du Sahara et du Sahel, dedicated to fighting dese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hanoi
Hanoi or Ha Noi ( or ; vi, Hà Nội ) is the capital and second-largest city of Vietnam. It covers an area of . It consists of 12 urban districts, one district-leveled town and 17 rural districts. Located within the Red River Delta, Hanoi is the cultural and political centre of Vietnam. Hanoi can trace its history back to the third century BCE, when a portion of the modern-day city served as the capital of the historic Vietnamese nation of Âu Lạc. Following the collapse of Âu Lạc, the city was part of Han China. In 1010, Vietnamese emperor Lý Thái Tổ established the capital of the imperial Vietnamese nation Đại Việt in modern-day central Hanoi, naming the city Thăng Long (literally 'Ascending Dragon'). Thăng Long remained Đại Việt's political centre until 1802, when the Nguyễn dynasty, the last imperial Vietnamese dynasty, moved the capital to Huế. The city was renamed Hanoi in 1831, and served as the capital of French Indochina from 1902 to 1945. O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OCLC
OCLC, Inc., doing business as OCLC, See also: is an American nonprofit cooperative organization "that provides shared technology services, original research, and community programs for its membership and the library community at large". It was founded in 1967 as the Ohio College Library Center, then became the Online Computer Library Center as it expanded. In 2017, the name was formally changed to OCLC, Inc. OCLC and thousands of its member libraries cooperatively produce and maintain WorldCat, the largest online public access catalog (OPAC) in the world. OCLC is funded mainly by the fees that libraries pay (around $217.8 million annually in total ) for the many different services it offers. OCLC also maintains the Dewey Decimal Classification system. History OCLC began in 1967, as the Ohio College Library Center, through a collaboration of university presidents, vice presidents, and library directors who wanted to create a cooperative, computerized network for libraries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
G-suit
A g-suit, or anti-''g'' suit, is a flight suit worn by aviators and astronauts who are subject to high levels of acceleration force ( g). It is designed to prevent a black-out and g-LOC (g-induced loss of consciousness) caused by the blood pooling in the lower part of the body when under acceleration, thus depriving the brain of blood. Black-out and g-LOC have caused a number of fatal aircraft accidents. Operation If blood is allowed to pool in the lower areas of the body, the brain will be deprived of blood. This lack of blood flow to the brain first causes a greyout (a dimming of the vision also called brownout), followed by tunnel vision and ultimately complete loss of vision 'blackout' followed by g-induced Loss Of Consciousness or 'g-LOC'. The danger of g-LOC to aircraft pilots is magnified because on relaxation of g-force there is a period of disorientation before full sensation is re-gained. A g-suit does not so much increase the g-threshold, but makes it possible to su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bosnia
Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and Herzegovina borders Serbia to the east, Montenegro to the southeast, and Croatia to the north and southwest. In the south it has a narrow coast on the Adriatic Sea within the Mediterranean, which is about long and surrounds the town of Neum. Bosnia, which is the inland region of the country, has a moderate continental climate with hot summers and cold, snowy winters. In the central and eastern regions of the country, the geography is mountainous, in the northwest it is moderately hilly, and in the northeast it is predominantly flat. Herzegovina, which is the smaller, southern region of the country, has a Mediterranean climate and is mostly mountainous. Sarajevo is the capital and the largest city of the country followed by Banja Luka, Tuzla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scott O'Grady
Scott Francis O'Grady (born October 12, 1965) is a former United States Air Force fighter pilot. On June 2, 1995, he was shot down over Bosnia and Herzegovina by a 2K12 Kub mobile SAM launcher and forced to eject from his F-16C into hostile territory. US Marines from heavy-helicopter squadron HMH-464 and the 24 MEU(SOC) eventually rescued O'Grady after nearly a week of his evading the Bosnian Serbs. He was previously involved in the Banja Luka incident where he fired upon six enemy aircraft. The 2001 film '' Behind Enemy Lines'' is loosely based upon his experiences. In September 2011, O'Grady announced a run for the 2012 Republican nomination for Texas State Senate District 8, held at the time by the retiring Republican Florence Shapiro, but he later suspended his campaign because of uncertainties over the Texas redistricting fight. In November 2020, President Donald Trump stated an official intention to nominate O'Grady as the next Assistant Secretary of Defense for Internat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocean Current
An ocean current is a continuous, directed movement of sea water generated by a number of forces acting upon the water, including wind, the Coriolis effect, breaking waves, cabbeling, and temperature and salinity differences. Depth contours, shoreline configurations, and interactions with other currents influence a current's direction and strength. Ocean currents are primarily horizontal water movements. An ocean current flows for great distances and together they create the global conveyor belt, which plays a dominant role in determining the climate of many of Earth’s regions. More specifically, ocean currents influence the temperature of the regions through which they travel. For example, warm currents traveling along more temperate coasts increase the temperature of the area by warming the sea breezes that blow over them. Perhaps the most striking example is the Gulf Stream, which makes northwest Europe much more temperate for its high latitude compared to other areas at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Survival Radio
Survival radios are carried by ships and aircraft to facilitate rescue in an emergency. They are generally designed to transmit on international distress frequencies. Maritime systems have been standardized under the Global Maritime Distress Safety System. History The use of radio to aid in rescuing survivors of accidents at sea came to the forefront after the sinking of the RMS ''Titanic'' in 1912. Lifeboats were equipped with spark gap transmitters such as the Marconi Type 241, c. 1920. These operated using Morse code on 500 kHz, the international distress frequency at the time. This frequency had the advantage of long range due to ground-wave propagation and was constantly monitored by all large ships at sea after the'' Titanics sinking. However, due to its wavelength of 600 meters, a long antenna was required to achieve good range. Long wires on the order of 1/4 wavelength held up by kites or balloons were often used. Spark-gap continued to be used in lifeboats long after ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celestial Pole
The north and south celestial poles are the two points in the sky where Earth's rotation around a fixed axis, axis of rotation, indefinitely extended, intersects the celestial sphere. The north and south celestial poles appear permanently directly overhead to observers at Earth's North Pole and South Pole, respectively. As Earth spins on its axis, the two celestial poles remain fixed in the sky, and all other celestial points appear to rotate around them, completing one circuit per day (strictly, per sidereal time, sidereal day). The celestial poles are also the poles of the celestial equatorial coordinate system, meaning they have declinations of +90 degrees and −90 degrees (for the north and south celestial poles, respectively). Despite their apparently fixed positions, the celestial poles in the long term do not actually remain permanently fixed against the background of the stars. Because of a phenomenon known as the precession of the equinoxes, the poles trace out ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cammenga
Cammenga is an outdoors products company, known chiefly for producing navigation equipment under contract for United States Armed Forces. They are the official supplier of the M-1950 lensatic field compass issued to U.S. Army and Marine Corps infantry and artillery units. Profile Cammenga was founded in 1992 by a group of investors to produce the M-1950 3H lensatic compass to the U.S. Armed Forces. Since 1992, Cammenga has held the U.S. military contract for the M-1950. The firm develops, manufactures, and distributes a wide variety of products to military, law enforcement, and commercial markets around the world, including land navigation instruments, firearm sighting and loading systems, firearm magazines, tritium knives, and other tritium light source integration services. The company provides development assistance in tritium (self-luminous) lighting products, NRC approval processing, tritium capsule assembly and installation procedures, and product testing. The company i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olefin Fiber
Olefin fiber is a synthetic fiber made from a polyolefin, such as polypropylene or polyethylene. It is used in wallpaper, carpeting, ropes, and vehicle interiors. Olefin's advantages are its strength, colorfastness and comfort, its resistance to staining, mildew, abrasion, and sunlight, and its good bulk and cover. History Italy began production of olefin fibers in 1957. The chemist Giulio Natta successfully formulated olefin suitable for more textile applications. Both Natta and Karl Ziegler were later awarded the Nobel Prize for their work on transition metal catalysis of olefins to fiber, also known as Ziegler–Natta catalysis. Production of olefin fibers in the U.S. began in 1960. Olefin fibers account for 16% of all manufactured fibers. Major fiber properties Olefin fibers have great bulk and cover while having low specific gravity. This means “Warmth without the weight.” The fibers have low moisture absorption, but they can wick moisture and dry quickly. Olefin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spunbond
Nonwoven fabric is a fabric-like material made from staple fibre (short) and long fibres (continuous long), bonded together by chemical, mechanical, heat or solvent treatment. The term is used in the textile manufacturing industry to denote fabrics, such as felt, which are neither woven nor knitted. Some non-woven materials lack sufficient strength unless densified or reinforced by a backing. In recent years, non-wovens have become an alternative to polyurethane foam. Applications Nonwoven fabrics are broadly defined as sheet or web structures bonded together by entangling fiber or filaments (and by perforating films) mechanically, thermally or chemically. They are flat or tufted porous sheets that are made directly from separate fibres, molten plastic or plastic film. They are not made by weaving or knitting and do not require converting the fibres to yarn. Typically, a certain percentage of recycled fabrics and oil-based materials are used in nonwoven fabrics. The percentage o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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