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Chick Hayward
John Tucker "Chick" Hayward (15 November 1908 – 23 May 1999) was an American naval aviator during World War II. He helped develop one of the two atomic bombs that was dropped on Japan in the closing days of the war. Later, he was a pioneer in the development of nuclear propulsion, nuclear weapons, guidance systems for ground- and air-launched rockets, and underwater anti-submarine weapons. A former batboy for the New York Yankees, Hayward dropped out of high school and lied about his age to enlist in the United States Navy at age 16. He was subsequently admitted to the United States Naval Academy at Annapolis, from which he graduated 51st in his class of 1930. He volunteered for naval aviation. During World War II, he served at the Naval Aircraft Factory in Philadelphia, where he was involved in an effort to improve aircraft instrumentation, notably the compass and altimeter. He attended the University of Pennsylvania's Moore School of Electrical Engineering, and studied nucl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive with a respective county. The city is the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the United States by both population and urban area. New York is a global center of finance and commerce, culture, technology, entertainment and media, academics, and scientific output, the arts and fashion, and, as home to the headquarters of the United Nations, international diplomacy. With an estimated population in 2024 of 8,478,072 distributed over , the city is the most densely populated major city in the United States. New York City has more than double the population of Los Angeles, the nation's second-most populous city. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Legion Of Merit
The Legion of Merit (LOM) is a Awards and decorations of the United States military, military award of the United States Armed Forces that is given for exceptionally meritorious conduct in the performance of outstanding services and achievements. The decoration is issued to members of the eight uniformed services of the United States Note: National Oceanic and Atmospheric Administration Commissioned Officer Corps Amendments Act of 2012 amended the Legion of Merit to be awarded to any uniformed service. as well as to military and political figures of foreign governments. The Legion of Merit (Commander degree) is one of only two United States military decorations to be issued as a neck order (the other being the Medal of Honor), and the only United States military decoration that may be issued in degrees (much like an Order (honour), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moore School Of Electrical Engineering
The Moore School of Electrical Engineering was a school at the University of Pennsylvania. The school was integrated into the University of Pennsylvania School of Engineering and Applied Science. The Moore School came into existence as a result of an endowment from Alfred Fitler Moore on June 4, 1923. It was granted to Penn's School of Electrical Engineering, located in the Towne Building. The first dean of the Moore School was Harold Pender. The Moore School is particularly famed as the birthplace of the computer industry: * It was here that the first general-purpose Turing complete digital electronic computer, the ENIAC, was built between 1943 and 1946. * Preliminary design work on the ENIAC's successor machine the EDVAC resulted in the stored program concept used in all computers today, the logical design having been promulgated in John von Neumann's ''First Draft of a Report on the EDVAC'', a set of notes synthesized from meetings he attended at the Moore School. * The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Pennsylvania
The University of Pennsylvania (Penn or UPenn) is a Private university, private Ivy League research university in Philadelphia, Pennsylvania, United States. One of nine colonial colleges, it was chartered in 1755 through the efforts of founder and first president Benjamin Franklin, who had advocated for an educational institution that trained leaders in academia, commerce, and public service. The university has four undergraduate schools and 12 graduate and professional schools. Schools enrolling undergraduates include the College of Arts and Sciences, the University of Pennsylvania School of Engineering and Applied Science, School of Engineering and Applied Science, the Wharton School, and the University of Pennsylvania School of Nursing, School of Nursing. Among its graduate schools are its University of Pennsylvania Law School, law school, whose first professor, James Wilson (Founding Father), James Wilson, helped write the Constitution of the United States, U.S. Cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Aircraft Factory
The Naval Aircraft Factory (NAF) was established by the United States Navy in 1918 in Philadelphia, Pennsylvania. It was created to help solve aircraft supply issues which the United States Department of the Navy, Navy Department faced upon the entry of the U.S. into World War I. The United States Army’s requirements for an enormous quantity of airplanes created a decided lack of interest among aircraft manufacturers in the Navy's requirements for a comparatively small quantity of aircraft. The Navy Department concluded that it was necessary to build a Navy-owned aircraft factory in order to assure a part of its aircraft supply; to obtain cost data for the department’s guidance in its dealings with private manufacturers; and to have under its own control a factory capable of producing experimental designs. History World War I On 27 July 1917 Secretary of the Navy Josephus Daniels approved the construction of the Naval Aircraft Factory as a means for the government to pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Naval Academy
The United States Naval Academy (USNA, Navy, or Annapolis) is a United States Service academies, federal service academy in Annapolis, Maryland. It was established on 10 October 1845 during the tenure of George Bancroft as United States Secretary of the Navy, Secretary of the Navy. The Naval Academy is the second oldest of the five United States service academies, U.S. service academies and it educates midshipmen for service in the officer corps of the United States Navy and United States Marine Corps. It is part of the Naval University System. The campus is located on the former grounds of Fort Severn at the confluence of the Severn River (Maryland), Severn River and Chesapeake Bay in Anne Arundel County, Maryland, Anne Arundel County, east of Washington, D.C., and southeast of Baltimore. The entire campus, known colloquially as the Yard, is a National Historic Landmark and home to many historic sites, buildings, and monuments. It replaced Philadelphia Naval Asylum in Phila ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York Yankees
The New York Yankees are an American professional baseball team based in the Boroughs of New York City, New York City borough of the Bronx. The Yankees compete in Major League Baseball (MLB) as a member club of the American League (AL) American League East, East Division. They are one of two major league clubs based in New York City alongside the National League (baseball), National League (NL)'s New York Mets. The team was founded in when Frank J. Farrell, Frank Farrell and William Stephen Devery, Bill Devery purchased the franchise rights to the defunct Baltimore Orioles (1901–1902), Baltimore Orioles after it ceased operations and used them to establish the New York Highlanders. The Highlanders were officially renamed the Yankees in . The team is owned by Yankee Global Enterprises, a limited liability company that is controlled by the family of the late George Steinbrenner. Steinbrenner purchased the team from CBS in 1973. Currently, Brian Cashman is the team's gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batboy
In baseball, a bat boy or bat girl is an individual who carries baseball bats to the players on a baseball team. Duties of a batboy may also include handling and preparing players’ equipment and bringing Baseball (ball), baseballs to the umpire (baseball), umpire during the game. During games, a batboy remains in or near a team's Dugout (baseball), dugout and the area around home plate. A bat boy should not be confused with ball boys, who are stationed down the foul line (baseball), foul lines to retrieve foul balls. As batboys are stationed on the field, albeit in foul territory, they can occasionally interfere with play; such events are governed by Rule 6.01(d), the main point of which is that if the interference is unintentional, any live ball remains alive and in play. History Mascots and bat boys had both been part of baseball since the 1880s. Perhaps the most famous mascot/batboy was Eddie Bennett, who was supposedly hired as a mascot by the Chicago White Sox at the ur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-submarine
An anti-submarine weapon (ASW) is any one of a number of devices that are intended to act against a submarine and its crew, to destroy (sink) the vessel or reduce its capability as a weapon of war. In its simplest sense, an anti-submarine weapon is usually a projectile, missile or bomb that is optimized to destroy submarines. History Before World War I Prior to about 1890, naval weapons were only used against surface shipping. With the rise of the military submarine after this time, countermeasures were considered for use against them. The first submarine installation of torpedo tubes was in 1885 and the first ship was sunk by a submarine-launched torpedo in 1887. There were only two ways of countering the military submarine initially: ramming them or sinking them with gunfire. However, once they were submerged, they were largely immune until they had to surface again. By the start of the First World War there were nearly 300 submarines in service with another 80 in production. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Propulsion
Nuclear propulsion includes a wide variety of propulsion methods that use some form of nuclear reaction as their primary power source. Many aircraft carriers and submarines currently use uranium fueled nuclear reactors that can provide propulsion for long periods without refueling. There are also applications in the space sector with nuclear thermal and nuclear electric engines which could be more efficient than conventional rocket engines. The idea of using nuclear material for propulsion dates back to the beginning of the 20th century. In 1903 it was hypothesized that radioactive material, radium, might be a suitable fuel for engines to propel cars, planes, and boats. H. G. Wells picked up this idea in his 1914 fiction work '' The World Set Free''. Surface ships, submarines, and torpedoes Nuclear-powered vessels are mainly military submarines, and aircraft carriers. Russia is the only country that currently has nuclear-powered civilian surface ships, mainly icebreaker ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atomic Bombings Of Hiroshima And Nagasaki
On 6 and 9 August 1945, the United States detonated two atomic bombs over the Japanese cities of Hiroshima and Nagasaki, respectively, during World War II. The aerial bombings killed between 150,000 and 246,000 people, most of whom were civilians, and remain the only uses of Nuclear warfare, nuclear weapons in an armed conflict. Surrender of Japan, Japan announced its surrender to the Allies on 15 August, six days after the bombing of Nagasaki and the Soviet–Japanese War, Soviet Union's declaration of war against Japan and Soviet invasion of Manchuria, invasion of Manchuria. The Japanese government signed an Japanese Instrument of Surrender, instrument of surrender on 2 September, End of World War II in Asia, ending the war. In the final year of World War II, the Allies of World War II, Allies prepared for a costly Operation Downfall, invasion of the Japanese mainland. This undertaking was preceded by a Air raids on Japan, conventional bombing and firebombing campaign that de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atomic Bomb
A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission or atomic bomb) or a combination of fission and fusion reactions (thermonuclear weapon), producing a nuclear explosion. Both bomb types release large quantities of energy from relatively small amounts of matter. Nuclear bombs have had yields between 10 tons (the W54) and 50 megatons for the Tsar Bomba (see TNT equivalent). Yields in the low kilotons can devastate cities. A thermonuclear weapon weighing as little as can release energy equal to more than 1.2 megatons of TNT (5.0 PJ). Apart from the blast, effects of nuclear weapons include firestorms, extreme heat and ionizing radiation, radioactive nuclear fallout, an electromagnetic pulse, and a radar blackout. The first nuclear weapons were developed by the Allied Manhattan Project during World War II. Their production continues to require a large scientific and industrial complex, primari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
