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Erker's Optical
Erker's Optical Co. of St. Louis, Missouri is an optical company started in 1879 by A.P. Erker. A.P. Erker's brother, Olympic gold medalist August Erker later joined the business. Mr. Erker was one of the official photographers of the 1904 World's Fair. Erker's is still run by the Erker family; the current president being Jack Erker Jr. Erker's owns many photos of the 1904 World's Fair, as the company sponsored its official photographer. Erker's also supplied Charles Lindbergh with the goggles that he used in his 1927 transatlantic flight in The Spirit of St. Louis The ''Spirit of St. Louis'' (formally the Ryan NYP, registration: N-X-211) is the custom-built, single-engine, single-seat, high-wing monoplane that was flown by Charles Lindbergh on May 20–21, 1927, on the first solo nonstop transatlanti .... References External links Official homepage Companies based in St. Louis {{US-company-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optics
Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultraviolet, and infrared light. Because light is an electromagnetic wave, other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties. Most optical phenomena can be accounted for by using the classical electromagnetic description of light. Complete electromagnetic descriptions of light are, however, often difficult to apply in practice. Practical optics is usually done using simplified models. The most common of these, geometric optics, treats light as a collection of rays that travel in straight lines and bend when they pass through or reflect from surfaces. Physical optics is a more comprehensive model of light, which includes wave effects such as diffraction and interference that can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1904 Summer Olympics
The 1904 Summer Olympics (officially the Games of the III Olympiad and also known as St. Louis 1904) were an international multi-sport event held in St. Louis, Missouri, United States, from 29 August to 3 September 1904, as part of an extended sports program lasting from 1 July to 23 November 1904, located at what is now known as Francis Field on the campus of Washington University in St. Louis. This was the first time that the Olympic Games were held outside Europe. Tensions caused by the Russo–Japanese War and difficulties in traveling to St. Louis resulted in very few top-class athletes from outside the United States and Canada taking part in the 1904 Games. Only 62 of the 651 athletes who competed came from outside North America, and only between 12 and 15 nations were represented in all. Some events subsequently combined the U.S. national championship with the Olympic championship. The current three-medal format of gold, silver and bronze for first, second and third pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
August Erker
August Casimir Erker (January 16, 1879 – November 29, 1951), was an American rower Rowing, sometimes called crew in the United States, is the sport of racing boats using oars. It differs from paddling sports in that rowing oars are attached to the boat using oarlocks, while paddles are not connected to the boat. Rowing is ... who competed in the 1904 Summer Olympics. In 1904 he rowed in the American crew which won the gold medal in the coxless fours. See also * Erker's Optical References External links profile 1879 births 1951 deaths Rowers at the 1904 Summer Olympics Olympic gold medalists for the United States in rowing American male rowers Medalists at the 1904 Summer Olympics {{US-rowing-Olympic-medalist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1904 World's Fair
The Louisiana Purchase Exposition, informally known as the St. Louis World's Fair, was an international exposition held in St. Louis, Missouri, United States, from April 30 to December 1, 1904. Local, state, and federal funds totaling $15 million were used to finance the event. More than 60 countries and 43 of the then-45 American states maintained exhibition spaces at the fair, which was attended by nearly 19.7 million people. Historians generally emphasize the prominence of the themes of race and imperialism, and the fair's long-lasting impact on intellectuals in the fields of history, art history, architecture and anthropology. From the point of view of the memory of the average person who attended the fair, it primarily promoted entertainment, consumer goods and popular culture. The monumental Greco-Roman architecture of this and other fairs of the era did much to influence permanent new buildings and master plans of major cities. Background In 1904, St. Louis hosted a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Lindbergh
Charles Augustus Lindbergh (February 4, 1902 – August 26, 1974) was an American aviator, military officer, author, inventor, and activist. On May 20–21, 1927, Lindbergh made the first nonstop flight from New York City to Paris, a distance of , flying alone for 33.5 hours. His aircraft, the ''Spirit of St. Louis'', was designed and built by the Ryan Airline Company specifically to compete for the Raymond Orteig#Orteig Prize, Orteig Prize for the first flight between the two cities. Although not the Transatlantic flight of Alcock and Brown, first transatlantic flight, it was the first solo transatlantic flight, the first nonstop transatlantic flight between two major city hubs, and the longest by over . It is known as one of the most consequential flights in history and ushered in a new era of air transportation between parts of the globe. Lindbergh was raised mostly in Little Falls, Minnesota and Washington, D.C., the son of prominent U.S. Congressman from Minnesota, Charles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transatlantic Flight
A transatlantic flight is the flight of an aircraft across the Atlantic Ocean from Europe, Africa, South Asia, or the Middle East to North America, Central America, or South America, or ''vice versa''. Such flights have been made by fixed-wing aircraft, airships, balloons and other aircraft. Early aircraft engines did not have the reliability nor the power to lift the required fuel to make a transatlantic flight. There were difficulties navigating over the featureless expanse of water for thousands of miles, and the weather, especially in the North Atlantic, is unpredictable. Since the middle of the 20th century, however, transatlantic flight has become routine, for commercial, military, diplomatic, and other purposes. History The idea of transatlantic flight came about with the advent of the hot air balloon. The balloons of the period were inflated with coal gas, a moderate lifting medium compared to hydrogen or helium, but with enough lift to use the winds that would later ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Spirit Of St
''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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