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Stratobowl
The Stratobowl is a compact natural depression within the limits of Black Hills National Forest in South Dakota, south-west of Rapid City. In 1934–1935 it housed a stratospheric balloon launch site, initially known as Stratocamp, sponsored by the National Geographic Society and the United States Army Air Corps. In 1956–1959 the site was reused by the U.S Navy Project Strato-Lab. ''Explorer'' balloons In 1934 the NGS and Air Corps co-sponsored the ''Explorer'', a manned high-altitude balloon capable of stratospheric flight. After the crash of the Soviet ''Osoaviakhim-1'' that nevertheless set an altitude record of , the sponsors redefined their primary objectives from record-setting to scientific research and tests of new navigation instruments. Air Corps Capt. Albert William Stevens, Capt. Orvil Arson Anderson and Maj. William E. Kepner were selected to fly the ''Explorer''.Ryan, p. 52 Kepner and Anderson, experienced balloonists, were in charge of locating a suitable lau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Explorer II (balloon)
''Explorer II'' was a manned U.S. high-altitude balloon that was launched on November 11, 1935, and reached a record altitude of . Launched at 8:00 am from the Stratobowl in South Dakota, the helium balloon carried a two-man crew consisting of U. S. Army Air Corps Captains Albert W. Stevens and Orvil A. Anderson inside a sealed, spherical cabin. The crew landed safely near White Lake, South Dakota, at 4:13 pm and both were acclaimed as national heroes. Scientific instruments carried on the gondola returned useful information about the stratosphere. The mission was funded by the membership of the National Geographic Society. Background In January 1934, the National Geographic Society (NGS) and the U. S. Army Air Corps decided to collaborate on a program to build and launch a manned balloon to the then record altitude of . This vehicle would be capable of carrying a crew of three in an airtight capsule, along with a laboratory of instruments. The hydrogen balloon, na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malcolm Ross (balloonist)
Malcolm David Ross (October 15, 1919 – October 8, 1985) was a captain in the United States Naval Reserve (USNR), an atmospheric scientist, and a balloonist who set several records for altitude and scientific inquiry, with more than 100 hours flight time in gas balloons by 1961. Along with Lieutenant Commander Victor A. Prather (USN), he set the altitude record for a manned balloon flight. Life Malcolm Ross was born on October 15, 1919 in Momence, Illinois, the son of Mr. and Mrs. J. R. Ross of 1825 Garden Street, West Lafayette, Indiana. He spent most of his early life in West Lafayette. About 1932, his family moved to a farm in Linden, Montgomery Country, Indiana. He attended all four years in Linden High School and graduated in 1936. Malcolm Ross received a scholarship to attend Purdue University to study civil engineering. While at Purdue, he worked at the campus radio station as a sports announcer and changed his major to creative writing, communication, and radio. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert William Stevens
Albert William Stevens (March 13, 1886 – March 26, 1949) was an officer of the United States Army Air Corps, balloonist, and aerial photographer. Biography He was born on March 13, 1886 in Belfast, Maine. He graduated from the University of Maine in 1909 with a master's degree in electrical engineering. While flying over South America in 1930, Stevens took the first photograph of the Earth in a way that the horizon's curvature is visible. To photograph through haze, Stevens often employed infrared-sensitive film for long-distance aerial photography. Accompanied by Lieutenant Charles D. McAllister of the Army Air Corps, Stevens took the first photograph of the Moon's shadow projected onto the Earth during a solar eclipse in August, 1932. On July 29, 1934, Stevens and two other Army Air Corps officers, Major William Kepner and Captain Orvil Arson Anderson, ascended in a specially-constructed balloon and gondola named ''Explorer I'' over north-western Nebraska in an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Explorer II Gondola
Exploration refers to the historical practice of discovering remote lands. It is studied by geographers and historians. Two major eras of exploration occurred in human history: one of convergence, and one of divergence. The first, covering most of ''Homo sapiens'' history, saw humans moving out of Africa, settling in new lands, and developing distinct cultures in relative isolation. Early explorers settled in Europe and Asia; 14,000 years ago, some crossed the Ice Age land bridge from Siberia to Alaska, and moved southbound to settle in the Americas. For the most part, these cultures were ignorant of each other's existence. The second period of exploration, occurring over the last 10,000 years, saw increased cross-cultural exchange through trade and exploration, and marked a new era of cultural intermingling, and more recently, convergence. Early writings about exploration date back to the 4th millennium B.C. in ancient Egypt. One of the earliest and most impactful thinkers of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Ellsworth Kepner
William Ellsworth Kepner (6 January 1893 in Miami, Indiana - 3 July 1982 in Orlando, Florida) was an officer in the United States Army, United States Army Air Corps and United States Air Force, and a pioneer balloonist and airship pilot. Early life He was born on 3 January 1893 in Miami, Indiana. World War I From 1909 to 1913, Kepner served in the US Marine Corps. By 1916 he was a second lieutenant in the Indiana National Guard. After a short spell in the US cavalry, in 1917 he transferred to the infantry as a captain and commanded a company at the Battle of Chateau-Thierry. He subsequently lead the 3rd Battalion of the 4th US Infantry in the Meuse-Argonne offensive. Interwar period In 1920, at the age of 27, he transferred to the US Army Air Corps and trained as a balloon pilot, then subsequently as an airship pilot. From 1927 to 1929 he participated very prominently in several US national and international balloon races, most notably winning the prestigious Gordon Bennett ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles B
Charles is a masculine given name predominantly found in English and French speaking countries. It is from the French form ''Charles'' of the Proto-Germanic name (in runic alphabet) or ''*karilaz'' (in Latin alphabet), whose meaning was "free man". The Old English descendant of this word was '' Ċearl'' or ''Ċeorl'', as the name of King Cearl of Mercia, that disappeared after the Norman conquest of England. The name was notably borne by Charlemagne (Charles the Great), and was at the time Latinized as ''Karolus'' (as in ''Vita Karoli Magni''), later also as '' Carolus''. Some Germanic languages, for example Dutch and German, have retained the word in two separate senses. In the particular case of Dutch, ''Karel'' refers to the given name, whereas the noun ''kerel'' means "a bloke, fellow, man". Etymology The name's etymology is a Common Germanic noun ''*karilaz'' meaning "free man", which survives in English as churl (< Old English ''ċeorl''), which developed its dep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South St
South is one of the cardinal directions or compass points. The direction is the opposite of north and is perpendicular to both east and west. Etymology The word ''south'' comes from Old English ''sūþ'', from earlier Proto-Germanic ''*sunþaz'' ("south"), possibly related to the same Proto-Indo-European root that the word ''sun'' derived from. Some languages describe south in the same way, from the fact that it is the direction of the sun at noon (in the Northern Hemisphere), like Latin meridies 'noon, south' (from medius 'middle' + dies 'day', cf English meridional), while others describe south as the right-hand side of the rising sun, like Biblical Hebrew תֵּימָן teiman 'south' from יָמִין yamin 'right', Aramaic תַּימנַא taymna from יָמִין yamin 'right' and Syriac ܬܰܝܡܢܳܐ taymna from ܝܰܡܝܺܢܳܐ yamina (hence the name of Yemen, the land to the south/right of the Levant). Navigation By convention, the ''bottom or down-facing side'' of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Project Manhigh
Project Manhigh was a pre-Space Age military project that took men in balloons to the middle layers of the stratosphere, funded as an aero-medical research program, though seen by its designers as a stepping stone to space. It was conducted by the United States Air Force between 1955 and 1958. History The project started in December 1955 to study the effects of cosmic rays on humans. Three balloon flights to the stratosphere were made during the program: * Manhigh I to , by Captain Joseph W. Kittinger on June 2, 1957. The balloon was launched from South St. Paul Airport and the flight was cut short due to one of the capsule's valves being installed backwards which vented the oxygen supply outside, but not before reaching a record altitude of 96,784 feet. * Manhigh II to , by Major David G. Simons on August 19–20, 1957, launched from Portsmouth Mine in Crosby, Minnesota, for a 32-hour flight that included a set of 25 experiments and observations, and earned Simons a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curvature
In mathematics, curvature is any of several strongly related concepts in geometry. Intuitively, the curvature is the amount by which a curve deviates from being a straight line, or a surface deviates from being a plane. For curves, the canonical example is that of a circle, which has a curvature equal to the reciprocal of its radius. Smaller circles bend more sharply, and hence have higher curvature. The curvature ''at a point'' of a differentiable curve is the curvature of its osculating circle, that is the circle that best approximates the curve near this point. The curvature of a straight line is zero. In contrast to the tangent, which is a vector quantity, the curvature at a point is typically a scalar quantity, that is, it is expressed by a single real number. For surfaces (and, more generally for higher-dimensional manifolds), that are embedded in a Euclidean space, the concept of curvature is more complex, as it depends on the choice of a direction on the surfa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helium
Helium (from el, ἥλιος, helios, lit=sun) is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table. Its boiling and melting point are the lowest among all the elements. It is the second lightest and second most abundant element in the observable universe (hydrogen is the lightest and most abundant). It is present at about 24% of the total elemental mass, which is more than 12 times the mass of all the heavier elements combined. Its abundance is similar to this in both the Sun and in Jupiter, due to the very high nuclear binding energy (per nucleon) of helium-4, with respect to the next three elements after helium. This helium-4 binding energy also accounts for why it is a product of both nuclear fusion and radioactive decay. The most common isotope of helium in the universe is helium-4, the vast majority of which was formed during t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4th Cavalry Regiment (United States)
The 4th Cavalry Regiment is a United States Army cavalry regiment, whose lineage is traced back to the mid-19th century. It was one of the most effective units of the Army against American Indians on the Texas frontier. Today, the regiment exists as separate squadrons within the U.S. Army. The 1st Squadron of the 4th Cavalry's official nickname is "Quarterhorse", which alludes to its 1/4 Cav designation. The 3rd Squadron of the 4th Cavalry's official nickname is "Raiders". Today, the "1st Squadron, 4th Cavalry", "2nd Squadron, 4th Cavalry", "4th Squadron, 4th Cavalry", and "6th Squadron, 4th Cavalry" are parts of the 1st Infantry Division, while the "3rd Squadron, 4th Cavalry" serves as part of the 25th Infantry Division. On 23 September 2009, the "4th Squadron, 4th Cavalry" officially stood up at Fort Riley, Kansas as part of the 1st "Devil" Brigade, 1st Infantry Division. On 28 March 2008, the "5th Squadron, 4th Cavalry" officially stood up at Fort Riley, Kansas as part o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Dakota National Guard
The South Dakota National Guard is part of the South Dakota Department of Military & Veterans Affairs. It was created in 1862 as the State Militia. Its headquarters is located in Rapid City, South Dakota. It consists of the South Dakota Army National Guard and the South Dakota Air National Guard. The Guard in South Dakota was first activated 1862 by the territorial governor, and consisted of six companies of militia, composed of cavalry and infantry. In April 1898 the first infantry was federalized and deployed to the Philippines. South Dakota Army National Guard The South Dakota Army National Guard maintains and operates 24 armories, and in 22 different communities. Major components of the SD ARNG include field artillery, engineer, transportation, aviation, maintenance and medical units. Major units: * Joint Force Headquarters * 196th Maneuver Enhancement Brigade ** 109th Engineer Battalion ** 153d Engineer Battalion ** 1st Battalion, 147th Field Artillery Regiment (MLRS) *** B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
