Полнотекстовый поиск:
Где искать:
только в названии
только в тексте
слова в тексте
только заголовок

Рекомендуем ознакомиться

Остальные работы->Реферат
MacBeth the play is considered a tragedy and every tragedy needs a tragic hero. There are many factors that caused the degeneration of Macbeth. Macbet...полностью>>
Остальные работы->Реферат
Fire sprinklers are widely recognized as the single most effective method for fighting the spread of fire in their early stages, before they can cause...полностью>>
Остальные работы->Реферат
What is capital punishment? Capital punishment is the maximum penalty of a conviction. More than 4, 400 people have been executed since 1930. There is...полностью>>
Остальные работы->Реферат
After radio killed the video star, we couldn’t really get much higher (which means that we probably didn’t start the fire). So now we’re on the road a...полностью>>

Главная > Реферат >Остальные работы

Сохрани ссылку в одной из сетей:

Supersonic Transport Essay, Research Paper

The tension that existed between the U.S. and Russia during the years after WWII was not only a time that both countries patiently tried to keep the world from another war, but was also a time of great rivalry in the exploration of space. As both counties diligently experimented with plans for creating a way to get into the vastness of space, spies on both sides were already in place to steal those ideas. And so the space race began. Both countries wanted to be the first to succeed so millions were spent as the world watched as the U.S. and Russia went head to head in a battle that would change the world forever.

The space race began with the launch of Sputnik 1 on October 4, 1957 as Roy Silver and other reporters announced the next day that “Radio signals from the first satellite launched yesterday by the Russians were broadcast to radio and television audiences here last night.”(www.nytimes.com/partners/aol/special/sputnik/sput-04.html) The competition was to be the first to loft a satellite into space and had begun way before Sputnik launched. After the end of World War II, research on rockets for upper-atmosphere use and military missiles was extensive. Engineers knew they would be able to launch a satellite to orbit Earth sooner or later. The first United States proposal to place a satellite in orbit was made in 1954 by the U.S. Army. It was not until January 31, 1958, that the United States joined the Soviets in space (VonBraun, 1975). The Space Age began for the world?s superpowers when the Soviets put Sputnik I, the first man made satellite, into a shallow Earth orbit. Sputnik carried a battery-operator radio transmitter that beeped as it circled the globe every 95 minutes. The 185-pound Sputnik became a symbol of Soviet success, for the first time man had broken his gravitational shackles. To military strategists, Sputnik was confirmation that the intercontinental ballistic missile had surpassed the strategic bomber as the weapon of the future. In late July of 1955, President Dwight D. Eisenhower announced that the United States would launch several small satellites, which was to begin July 1, 1957 (VonBraun, 1975). Within a couple of days, the Russians announced similar intentions, but the Soviet satellite would be larger than the American one. By mid-1957, the official Soviet press suggested the first launch was months away. Few people in the United States paid much attention to the prediction though. On October 4, 1957, Sputnik lifted off (VonBraun, 1975). Sputnik was only in orbit for three weeks, but those who tracked it gained valuable information about the destiny of the upper atmosphere and the manner in which it altered the satellite?s orbit. On January 4, 1958, after ninety-two days in orbit, Sputnik I re-entered the Earth?s atmosphere and burned up. On November 3, 1957, the USSR launched Sputnik II (Raibchikov, 1971). It was a much heavier satellite, which carried the first living mammal into space. It was a dog named Laika. Laika died after ten days in space. Some of the information sent from the satellite showed that Laika was alive until there was no more oxygen left on board. Sputnik II re-entered the Earth?s atmosphere and burned up on April 14, 1958, after 162 days in space.

President Eisenhower announced on November 7, 1957 that James R. Killian would be the first White House science advisor and soon approved one billion dollars for the first direct federal aid to education–The National Defense Act (VonBraun, 1975). Plans for the establishment of a civilian space agency got underway. On July 29, Eisenhower signed the National Aeronautics and Space Act of 1958, authorizing NASA. The administration was formally founded on October 1, 1958 (VonBraun, 1975). Until NASA was up and running, the military was in charge. The U.S. Army and Navy had ballistic-missile projects in process, and each wanted to be the first to orbit an American satellite. The Navy got the first shot on December 6, 1957 (VonBraun, 1975). The result was a spectacular failure. The Vanguard rocket rose a few feet above the launch pad, and then fell back and blew up. Washington?s officials then turned to the Army, where a group of booster pioneers were creating a satellite at Redstone Arsenal in Huntsville, Al. On January 31, 1958, it launched its Explorer I satellite from Cape Canaveral on a modified Redstone ballistic missile. The thirty-one pound Explorer I was considerably smaller that Sputnik I, but its orbit was much higher than Sputnik’s. Explorer I also carried a Geiger counter designed to detect the presence of cosmic rays. Explorer I?s instruments recorded an increasing number of cosmic particles as its altitude increased. Eventually James Van Allen described the discovery as zones or belts of electrically charged particles trapped by Earth?s magnetic field (VonBraun, 1975). By the first anniversary of the Sputnik I launch, the United States was closing the gap in the space race. America had launched three Explorers and one Vanguard, while the Soviets had launched three Sputniks. However the Russians could not only claim the first launch of an artificial object, but it could also claim the first launch of a living creature as well. Also, at 185 pounds, Sputnik I weighed more that all four U.S. satellites combined and Sputnik III weighed more than 2,950 pounds. Although the Sputnik I launch is widely believed to have signaled the start of the space race, some space policy historians do not believe that the real competition actually started until seven years later. Some say that initially, Eisenhower attempted to avoid an overreaction to the Soviet accomplishments in order to foster a strong U.S. program based on the United States’ own goals and abilities.

A new rivalry began on April 12, 1961, when Russian cosmonaut Yuri Gagarin made the first manned space flight, an orbital mission in Vostok I (Raibchikov, 1971). A month later, NASA astronaut Alan Shepard became the first American in space. He made a brief suborbital flight. On February 29, 1962, astronaut John Glenn became the first American to orbit the planet. On May 25, 1961, President Kennedy set the national goal of landing astronauts on the moon and returning them safely to Earth within the decade (VonBraun, 1975). The Soviets denied that they had any plans to put humans on the moon, but historical documents have proved this wrong. Also, their Luna launches proved that they had an interest in the moon. On September 13, 1959, the USSR?s Luna II crashed on the moon carrying a copy of the Soviet Coat of Arms. Then on October 4, 1959, Luna III set out to orbit the moon and photographed seventy percent of its farside (Raibchov, 1971). The last great first in space exploration came on July 20, 1969 when Neil Armstrong and his crew on Apollo 9 reached the moon.

It was difficult to tell which nation was really ahead in the space race; each country racked up a series of important firsts. The moon marked the finish line for the space race and once that was conquered there was little left to explore with the current technologies. But the space programs continue and with them bring us new technologies and products. The Cold War although was still in its prime, but with the end of the space race, closed one of the sources from which it was fueled.

Another aspect of the Cold War that took to the skies was the race for supersonic commercial transportation. The year was 1962 and with the sound barrier already broken by American Chuck Yeager, France and Britain had joined forces to be the first countries to have supersonic passenger jets (www.pbs.org?). But the U.S. had its eyes on advancing the world of aviation as well, so they announced their entry into the competition. Russia at this point could not imagine or allow the West to get ahead of them in anything so they went head to head with France and Britain to compete for supersonic transportation (SST). With little knowledge of supersonic flight, the Russians would turn to other methods to obtain their place in aviation history.

France proved to be off to a good start. Their dual engines could reach speeds of 1,400 m.p.h. and break the sound barrier; their swoop down nose design for increased pilot visibility during landing were both signs that France?s Concorde was a capable candidate in the race (www.pbs.org?). But keeping these advancements away from the competition would prove to be as easy as a trip to the drug store. Since France had started their project, the Russians had tried to steal plans away, and had spies with the French research centers. France aware of the spying, but not knowing who the spies were, set up a plan to feed certain people who were thought to be leaks false information. Ex-Scientist Howard Moon remembers, ?They brewed up in their laboratories, apparently, this marvelous rubber compound, something like bubble gum, previously unknown in the annuals of industrial chemistry, and gave it to the Frenchman to pass on to his Soviet contact. And I?ve always had this picture of these poor Soviets out there in the steppes trying to reproduce this bubble gum and try to turn it into large tires for their SST and completely failing and being rather severely punished by their administrators and the entire system for their inability to make this stuff work.?(www.pbs.org?, p.3-4). But by this time, The Russians had already stolen so much information on Concorde that they could get theirs up and running before anybody even knew it existed. The Russians knew that Concorde was set to launch either February or March of 1969, to be first they would have to launch theirs by the end of 1968. So on December 31, 1968, the Russian SST, TU-144 took its maiden flight and with no media, and an audience made up of only a few scientists and politicians, ushered in what was to be a new era of civilian transportation (www.pbs.org?). The media around the world would call it ?Concordski? because of its resemblance to the Concorde. The Concordski even had the swoop down nose, just like the Concorde (www.pbs.org?).

Unfortunately for the Americans, the Boeing 2707 had problems during flight because of its swing-wing design. Due to the problems the Americans had it was too late for them to begin a new design so they had to abandon their SST project (www.pbs.org?). The Concorde was released on time and proved to be a better craft because it showed to have fewer problems during flight than the Concordski. But the end was near for SSTs.

Due to the loud shockwave during a sonic boom, laws were passed in Europe and the U.S. stating that no commercial flight with a sonic boom will travel over land. Sir Hamilton explains, ?We had all sorts of complaints about sonic booms. We had the man who bred mink, and he complained that he?d lost a large number of mink kittens because the mink tend to kill their young if their suddenly disturbed.?(www.pbs.org? p. 10). Not only did they create noise pollution but they created air pollution as well. Due to the great speed needed to achieve and sustain SST, a great amount of fuel was needed. And in a time where the world was just waking up to the needs of the environment, we would not allow a plane that did nothing but create a lot of pollution.

Raibchikov, Evgeny. Russians in Space. (New York: Doubleday, 1971).

Rowland, Robert. America’s Agenda For Space. (Lincolnwood, Illinois: National Textbook Co, 1990).

Von Braun, Wernher & Fredrick I. Ordway III. History of Rocketry & Space Travel. (New York: Thomas Y. Crowell Company, 1975).



Загрузить файл

Похожие страницы:

  1. The Atmospheric Ozone Layer Essay Research Paper

    Реферат >> Остальные работы
    The Atmospheric Ozone Layer Essay, Research Paper The Atmospheric Ozone Layer The stratospheric ozone ... the Southern Hemisphere. Fortunately for the globe, the massive fleets of supersonic ... times and the inevitable transport into the stratosphere through ...
  2. Airplanes How They Work Essay Research Paper

    Реферат >> Остальные работы
    Airplanes How They Work Essay, Research Paper I am doing my report Title: ... lift-2-drags ratio. A subsonic modern Transport has a lift to drag ratio ... to drags ratio of about 6. The Supersonic age that aviation entered after ...
  3. Charles Lindbergh Essay Research Paper One of

    Реферат >> Остальные работы
    Charles Lindbergh Essay, Research Paper One of the greatest heroes the world has ever known Charles ... list. He also opposed the development of supersonic transport planes because they might ...
  4. Space Power Essay Research Paper Space Propulsion

    Реферат >> Остальные работы
    ... Essay, Research Paper Space Propulsion RESEARCH I/II LARRY PECAN FINAL REPORT 9-27-98 INTRODUCTION The ... them to supersonic velocities. On some vehicles, the nozzle acts ... and kerosene. The sketches also show valves to transport the liquid propellant ...
  5. Space Race Essay Research Paper Space ExplorationThe

    Реферат >> Остальные работы
    Space Race Essay, Research Paper Space Exploration The urge to explore the unknown is part ... to the development of an economical and environmentally safe supersonic passenger ... jet known as the High Speed Civil Transport. This ...

Хочу больше похожих работ...

Generated in 0.0024819374084473