|
Enter your query below to search our database containing over 50,000+ essays and term papers
Search results 21231 - 21240 of 30573 matching essays
- 21231: Airships
- ... fabric hull. Inventors sought to combine the best features of these models in a semirigid type, but it met with only limited success. Today only the nonrigid airship is used. Rigid Airship The rigid airship's structure resembled a cage that enclosed a series of balloons called gas cells. These cells were tailored to fit the cylindrical space and were secured in place by a netting that transmitted the lifting force ... Resolute, Enterprise, Ranger, and Columbia. During the 1930s these airships were used for advertising, and they barnstormed all over the United States. During World War II, the fleet was used for reconnaissance by the U. S. Navy. Three Goodyear blimps still operate, the newest, the Spirit of Akron, which was launched in 1989, was for a short time the world's largest operating airship 205.5 ft, with a volume of 248,000 cu ft. Goodyear no longer builds blimps, but other companies continue to produce and operate the craft. Among new types are the ...
- 21232: The Telephone
- ... use. The ringer responds to a signal sent by the central office that causes the telephone to ring. As simple a device as the telephone, had a mighty big impact on society during the 30's. This was due to the fact that, it was during the 30's when telephone service became economically feasible and also reliable. Men and women alike were captivated by the intrique and fascination of talking to relatives and friends, miles and miles away. Not only did the telephone ... set up meetings and discuss business matters with partners thousands of miles away. Companies that posessed a telephone had a enormous advantage over the rest. And in a time as economically troubled as the 30's depression, everyone was looking for a competitive edge. The telephone wasn't invented in the thirties, nor was the first transatlantic line built then, but the thirties represents a time in history when the ...
- 21233: Radio: A Form of Communication
- ... and inductors) to transmit and receive radio waves. By measuring the wavelength of the waves and knowing the frequency of oscillation, he was able to calculate the velocity of the waves. He thus verified Maxwell's theoretical prediction that electromagnetic waves travel at the speed of light. Marconi's Contribution It apparently did not occur to Hertz, however, to use electromagnetic waves for long-distance communication. This application was pursued by Guglielmo Marconi; in 1895, he produced the first practical wireless telegraph system. In ... the aerial (antenna) is increased. The first wireless telegraph message across the English Channel was sent by Marconi in March 1899. The use of radio for emergencies at sea was demonstrated soon after by Marconi's wireless company. (Wireless sets had been installed in lighthouses along the English coast, permitting communication with radios aboard nearby ships.) The first transatlantic communication, which involved sending the Morse-code signal for the letter ...
- 21234: John Brown
- ... youth in Ohio, where he was taught in local schools to resent compulsory education and by his parents to revere the Bible and hate slavery. As a boy he herded cattle for General William Hull’s army during the war of 1812; later he served as foreman of his family’s tannery. In 1820 he married Dianthe Lusk, who bore him seven children; five years later they moved to Pennsylvania to operate a tannery of their own. Within a year after Dianthe’s death in 1831, Brown wed sixteen year old Mary Anne Day, by whom he fathered thirteen more children. During the next twenty-four years Brown built and sold several tanneries, speculated in land sales, ...
- 21235: Technological Development and the Third World
- ... Third World?" Do they use that term in reference to themselves? Do they have any perception of the comparison, judgment and bias that goes into that statement? I'd like to think that they don't. In the film about the Ladack people that we watched in class, it was mentioned that they didn't have a word for poverty. No such word even existed in their language. But that was before. It was before the invasion of other cultures, and it was before they had anything to compare themselves ... which development occurred in the South, and the reason it happened the way that it did. From there, I will show how these methods of development proceeded to eventually cause widespread environmental damage and it's effect on the local people. . DEVELOPMENT: "WESTERN" STYLE When I refer to "the environment", I mean not only the habitat that humans, plants and animals inhabit, but also the physical, emotional and psychological attitudes ...
- 21236: John Paul Jones
- ... 1747. To his parents John Paul and Jean MacDuff he was the fourth child. They had seven children but unfortunately all but two died in infancy. The family was originally from Fife but John Paul's father had taken the family and moved to Arbigland where William Craik, the owner of a large estate their had met him and hired him to be his gardener. John Paul grew up on this ... shrill commands at his imaginary fleet. At the age of thirteen he boarded a ship to Whitehaven, which was a large port across the Solway Firth. There he signed up for a seven year seaman's apprenticeship on The Friendship of Whitehaven, whose captain was James Younger, a prosperous merchant and ship owner. His first voyage took him across the Atlantic Ocean to Barbados and Fredericksburg, Virginia at which he stayed ... to the British ship and after a time, two small boats from the opposing ships came and informed Captain Jones that they were armed British merchant ships. In addition, they told him that a King's frigate was nearby and that they perceived the Richard to be an English Ship of War. Captain Jones went along with the deception and managed to lure the other merchant ships out into the ...
- 21237: Telecommuting
- Telecommuting As defined in Webster's New World Dictionary, Third Edition, telecommuting is "an electronic mode of doing work outside the office that traditionally has been done in the office, as by computer terminal in the employee's home." Basically, it is working at home utilizing current technology, such as computers, modems, and fax machines. Traditionally, people have commuted by cars, buses, trains, and subways, to work and back. Through the innovation of ... family ties and unity. Also, time saved through telecommuting could be spent with family members constructively in ways that promote and foster resolution of family problems. Since the actual location a telecommuter works from isn't relevant, the person could actually move to another town. This would alleviate the stress caused when a spouse has an opportunity to pursue his or her career in another town and must choose between ...
- 21238: Virtual Reality
- ... certain medical practices. Computers are helping many doctors perform complicated operations very simply. Computers have changed the way we look at health problems. They have made incurable health problems very easy to solve in today's society. We have only begun to realize the extreme wastefulness of burning expensive fuel in aircraft in order to learn something in an hour that could be taught in ten minutes in a simulator. Simulators ... better than an airplane for the simple reason that in a simulator the learning environment is much safer. Students are able to avoid the overriding need to keep the airplane flying and out of harm's way. In a simulator a student is constantly busy, practicing what he is supposed to be learning, and once he's flown a given maneuver, he is able to go back and do it over again, without wasting time or fuel. Years ago doctors used X-rays to see the insides of humans. X-ray' ...
- 21239: The Origins of the Computer
- The Origins of the Computer This report is to be distributed freely and not to be sold for profit ect. This report can be modifyed as long as you keep in mind that you didn't write it. And you are not to hand in this report claiming credit for it heheh. The Roman Empire, founded by Augustus Caesar in 27 B.C. and lasting in Western Europe for 500 years ... of colored marble or with painted stucco. The decorative forms of this coating were derived from Greek The rebuilding of Rome set a pattern copied all over the empire. Nearby, the ruins of Ostia, Rome's port (principally constructed in the 2nd and 3rd centuries AD), reflect that model. Farther away it reappears at Trier in northwestern Germany, at Autun in central France, at Antioch in Syria, and at Timgad and ... of interior space, unlike the temples of the Greeks and the pagan Romans that were mere statue-chambers set in open precincts. The earliest imperial churches in Rome, like the first church of St. Peter's erected by Constantine from 333, were vast barns with wooden roofs supported on lines of columns. They resembled basilicas, which had carried on the Hellenistic style of columnar architecture. Roman concrete vaulted construction was ...
- 21240: Norman Rockwell
- Norman Rockwell was one of America’s greatest illustrators of this century who made many significant contributions to the field of graphic design with his works that promoted patriotic unity, conveyed the national scene, and often time just evoked or inspired emotions in his audiences. Ironically this painter was regarded as an illustrator in the eyes of other freelance artists due to his occupational limitations, and his supervisor’s restrictions characteristic of the Saturday Evening Post where he did most of his work from 1916 to 1963. Rockwell was born on February 3, 1894 and since his childhood years had always aspired to be ... Design and later on the Art Students League in New York. Here Rockwell was recognized as an above average illustrator with good potential. Rockwell then after developing his skills and contributing many illustrations to children’s magazines, managed to muster up the courage to show his work to a bigger periodical, the Saturday Evening Post. Happy with the quality of Rockwell’s work the Post gave Rockwell a job creating ...
Search results 21231 - 21240 of 30573 matching essays
|
