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Bubble Octant
The bubble octant and bubble sextant are air navigation instruments. Although an instrument may be called a "bubble sextant", it may actually be a bubble octant. Use Ships had long used sextants for navigation, but sextants had problems in aircraft navigation. A ship at sea is on a relatively flat surface and can use the horizon to measure the altitude of celestial objects. However, an aircraft may not have the sea's horizon as a flat reference surface. It may be flying over land where the horizon is formed by mountains of unknown height. A solution to the problem was to use a bubble to determine the reference plane. The bubble in an airplane is subject to the plane's acceleration. If the plane is in sharp turn, the bubble will be displaced. Consequently, when the navigator is using a bubble sextant, the pilot tries to fly the plane straight and level. Even when flying straight, a plane is subject to acceleration from air density and wind changes. Consequently, use of a bubble o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octant (instrument)
The octant, also called a reflecting quadrant (instrument), quadrant, is a reflecting instrument used in navigation. Etymology The name ''octant'' derives from the Latin ''octans'' meaning ''eighth part of a circle'', because the instrument's arc is Circular sector, one eighth of a circle. ''Reflecting quadrant'' derives from the instrument using mirrors to reflect the path of light to the observer and, in doing so, doubles the angle measured. This allows the instrument to use a one-eighth of a Turn (geometry), turn to measure a quarter-Turn (geometry), turn or Circular sector, quadrant. Origin of the octant Newton's reflecting quadrant Isaac Newton's reflecting quadrant was invented around 1699. A detailed description of the instrument was given to Edmond Halley, but the description was not published until after Halley's death in 1742. It is not known why Halley did not publish the information during his life, as this prevented Newton from getting the credit for the inven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Navigation
The basic principles of air navigation are identical to general navigation, which includes the process of planning, recording, and controlling the movement of a craft from one place to another. Successful air navigation involves piloting an aircraft from place to place without getting lost, not breaking the laws applying to aircraft, or endangering the safety of those on board or on the ground. Air navigation differs from the navigation of surface craft in several ways; aircraft travel at relatively high speeds, leaving less time to calculate their position en route. Aircraft normally cannot stop in mid-air to ascertain their position at leisure. Aircraft are safety-limited by the amount of fuel they can carry; a surface vehicle can usually get lost, run out of fuel, then simply await rescue. There is no in-flight rescue for most aircraft. Additionally, collisions with obstructions are usually fatal. Therefore, constant awareness of position is critical for aircraft pilots. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bausch And Lomb
Bausch & Lomb (since 2010 stylized as Bausch + Lomb) is an American-Canadian eye health products company based in Vaughan, Ontario, Canada. It is one of the world's largest suppliers of contact lenses, lens care products, pharmaceuticals, intraocular lenses, and other eye surgery products. The company was founded in Rochester, New York, in 1853 by optician John Bausch and cabinet maker turned financial backer Henry Lomb. Until its sale in 2013, Bausch + Lomb was one of the oldest continually operating companies in the United States. Bausch + Lomb was a public company listed on the NYSE, until it was acquired by private equity firm Warburg Pincus in 2007. In May 2013, Canadian-based Valeant Pharmaceuticals announced that it would acquire Bausch + Lomb from Warburg Pincus for $4.5 billion in cash. The deal, which was approved by shareholders, closed on August 5, 2013. On May 6, 2022, the company completed an initial public offering and again became publicly traded. As of 2022 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eddie Rickenbacker
Edward Vernon Rickenbacker (born Edward Rickenbacher, October 8, 1890 – July 23, 1973) was an American fighter pilot in World War I and a Medal of Honor recipient.Edward Vernon Rickenbacke r." ''Encyclopædia Britannica'', July 19, 2022. With 26 aerial victories, he was the most successful and most decorated United States of the war. He was also a , an automotive designer, and a long-time head of |
Fred Noonan
Frederick Joseph Noonan (born April 4, 1893 – disappeared July 2, 1937, declared dead June 20, 1938) was an American flight navigator, sea captain and aviation pioneer, who first charted many commercial airline routes across the Pacific Ocean during the 1930s. As the flight navigator for famed aviator Amelia Earhart in their pioneering attempt at circumnavigating the globe, they disappeared somewhere over the central Pacific Ocean on July 2, 1937. Early life Fred Noonan was born on April 4, 1893 in Cook County, Illinois, to Joseph T. Noonan (born Lincolnville, Maine, in 1861) and Catherine Egan (born London, England), both of Irish descent. Noonan's mother died when he was four, and three years later a census report lists his father as living alone in a Chicago boarding house. Relatives or family friends were likely looking after Noonan. In his own words, Noonan "left school in summer of 1905 and went to Seattle, Washington," where he was a seaman at an early age, serving in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amelia Earhart
Amelia Mary Earhart ( ; July 24, 1897 – January 5, 1939) was an American aviation pioneer. On July 2, 1937, she disappeared over the Pacific Ocean while attempting to become the first female pilot to circumnavigate the world. During her life, Earhart embraced celebrity culture and women's rights, and since her disappearance has become a global cultural figure. She was the first female pilot to fly solo non-stop across the Atlantic Ocean and set many other records. She was one of the first aviators to promote commercial air travel, wrote best-selling books about her flying experiences, and was instrumental in the formation of Ninety-Nines, The Ninety-Nines, an organization for female pilots. Earhart was born and raised in Atchison, Kansas, and developed a passion for adventure at a young age, steadily gaining flying experience from her twenties. In 1928, she became a celebrity after becoming the first female passenger to cross the Atlantic by airplane. In 1932, she became th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gago Coutinho
Carlos Viegas Gago Coutinho, GCTE, GCC (; 17 February 1869 – 18 February 1959), generally known simply as Gago Coutinho, was a Portuguese geographer, cartographer, naval officer, historian and aviator. An aviation pioneer, Gago Coutinho and Sacadura Cabral were the first to cross the South Atlantic Ocean by air, in a journey from March to June 1922, started in Lisbon, Portugal, and finished in Rio de Janeiro, Brazil, using a seaplane variant of the British reconnaissance biplane Fairey III. In June 2022, the centenary of the first aerial crossing of the South Atlantic, it was announced that Faro Airport would officially change its name to Gago Coutinho Airport. Early life He was born in Belém, Lisbon, in a modest family, the son of José Viegas Gago Coutinho and his cousin, Fortunata Maria Coutinho. He finished high school in 1885, and entered the Polytechnic School, where he studied for one year, as preparation for his entrance at the Naval School, in Alfeite, Almada, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadrant (instrument)
A quadrant is an instrument used to measure angles up to 90°. Different versions of this instrument could be used to calculate various readings, such as longitude, latitude, and time of day. It was first proposed by Ptolemy as a better kind of astrolabe. Several different variations of the instrument were later produced by medieval Muslim astronomers. Mural quadrants were important astronomical instruments in 18th-century European observatories, establishing a use for positional astronomy. Etymology The term ''quadrant'', meaning one fourth, refers to the fact that early versions of the instrument were derived from astrolabes. The quadrant condensed the workings of the astrolabe into an area one fourth the size of the astrolabe face; it was essentially a quarter of an astrolabe. History During Rigvedic times in ancient India, quadrants called 'Tureeyam's were used to measure the extent of a great solar eclipse. The use of a Tureeyam for observing a solar eclipse by Ri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Navigation
The basic principles of air navigation are identical to general navigation, which includes the process of planning, recording, and controlling the movement of a craft from one place to another. Successful air navigation involves piloting an aircraft from place to place without getting lost, not breaking the laws applying to aircraft, or endangering the safety of those on board or on the ground. Air navigation differs from the navigation of surface craft in several ways; aircraft travel at relatively high speeds, leaving less time to calculate their position en route. Aircraft normally cannot stop in mid-air to ascertain their position at leisure. Aircraft are safety-limited by the amount of fuel they can carry; a surface vehicle can usually get lost, run out of fuel, then simply await rescue. There is no in-flight rescue for most aircraft. Additionally, collisions with obstructions are usually fatal. Therefore, constant awareness of position is critical for aircraft pilots. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isaac Newton
Sir Isaac Newton () was an English polymath active as a mathematician, physicist, astronomer, alchemist, theologian, and author. Newton was a key figure in the Scientific Revolution and the Age of Enlightenment, Enlightenment that followed. His book (''Mathematical Principles of Natural Philosophy''), first published in 1687, achieved the Unification of theories in physics#Unification of gravity and astronomy, first great unification in physics and established classical mechanics. Newton also made seminal contributions to optics, and Leibniz–Newton calculus controversy, shares credit with German mathematician Gottfried Wilhelm Leibniz for formulating calculus, infinitesimal calculus, though he developed calculus years before Leibniz. Newton contributed to and refined the scientific method, and his work is considered the most influential in bringing forth modern science. In the , Newton formulated the Newton's laws of motion, laws of motion and Newton's law of universal g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Air Force Operations In Malta, Gibraltar And The Mediterranean, 1940-1945
Royal may refer to: People * Royal (name), a list of people with either the surname or given name * A member of a royal family or royalty Places United States * Royal, Arkansas, an unincorporated community * Royal, Illinois, a village * Royal, Iowa, a city * Royal, Missouri, an unincorporated community * Royal, Nebraska, a village * Royal, Franklin County, North Carolina, an unincorporated area * Royal, Utah, a ghost town * Royal, West Virginia, an unincorporated community * Royal Gorge, on the Arkansas River in Colorado * Royal Township (other) Elsewhere * Mount Royal, a hill in Montreal, Canada * Royal Canal, Dublin, Ireland * Royal National Park, New South Wales, Australia Arts, entertainment, and media * ''Royal'' (Jesse Royal album), 2021 * Royal (Ayo album), 2020 * ''The Royal'', a British medical drama television series * '' The Royal Magazine'', a monthly British literary magazine published between 1898 and 1939 * '' The Raja Saab'', working title ''Roya ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
