Diesel vs. Electric Engines essays

Diesel vs. Electric Engines essays An engine is a railway vehicle that provides the motive power for a train. There is an engine at the head of the train and behind it there are several carriages. The engine and the carriage together are called a train. The train runs over a pair of steel rails. In contrast the first successful engine was built by Cornish inventor Richard Trevithick. In 1804 his unnamed steam locomotive hauled a train along the tramway of the Penydarren ironworks, near Merthyr Tydfil in Wales. After long time two new engine came in railway industry that totally changed the face of railway transportation and that was diesel engine and Electric engine.Both engine are capable to carry tonns of carriages and able to work in any weather condition.However Electric engine overriding the diesel engine according to circumstances of high speed,lack of emission into the atomsphere, After steam engine,Diesel engine is the popular engine in railway industry. A diesel engine is an reciprocating engine operating on the Diesel cycle as invented by Dr. Rudolf Diesel in 1983. Several types of diesel locomotive have been developed, the principal distinction being in the means by which the prime mover's mechanical power is conveyed to the driving wheels (drivers). A diesel engine (also known as a compression-ignition engine) is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber. This is in contrast to spark-ignition engines such as a petrol engine (gasoline engine) or gas engine (using a gaseous fuel as opposed to gasoline), which uses a spark plug to ignite an air-fuel mixture. The diesel engine has the highest thermal efficiency of any regular internal or external combustion engine due to its very high compression ratio. Low-speed diesel engines (as used in ships and other applications where overall engine weight is rel...

Contrast of Romes Gladiatorial Games Agressive Sports of Today essays

Contrast of Romes Gladiatorial Games Agressive Sports of Today essays The Contrast of Rome's Gladiatorial Games In every society, some form of entertainment is present. From board games to athletic events to theatrical spectacles, people throughout time have sought ways to occupy their leisure time. In all of the ancient societies I have studied, none has enjoyed a form of entertainment as brutal as the gladiatorial games of ancient Rome. Gladiatorial games consisted of men fighting with spears and swords against each other until one of them killed the other. Games would be held all day with the main feature being the contests where trained fighters would fight to their deaths. Trained in gladiatorial schools, slaves and criminals made up most of the gladiators. Sometimes even free men lured by the possibility of rewards would volunteer for these games. Gladiators fought even when they were wounded, with spears sticking into their legs, while still holding up their shields trying to escape death. At other "Games," men would measure their strength against wild animals. The animals were driven into the coliseum through a tall doorway at one end, and the fighters came in from all around the floor. Criminals of all ages and sexes were sent into the arena without weapons to confront animals who would tear them apart, assuring their ultimate death. Sharp swords and daggers would then be brought in. So serious were these fights that the weapons would be presented to the Emperor to test their sharpness. With each and every type of game, the crowds would be merciless, crying for more gladiators and bloodshed. When the day's events would be just about over, barred doors were opened and hundreds of worn out and half naked Jews of all ages would be driven into the center of the arena. The crowds would then scream for more barred doors to be lifted so that starved, man-eating lions and tigers could be released to attack the unarmed prey. After all the events o ...

Women in Catholicism Essay Example | Topics and Well Written Essays - 1500 words

Women in Catholicism - Essay Example The Gospels give account of the presence and importance of women in the company of Jesus and His interactions with them. Prominent among them are Mary and Martha, sisters of Lazarus, the friends of Jesus, and Mary Magdalene. The Gospels also mention Mary Magdalene as among the witnesses of the resurrection. But Paul, the founder of Christianity, does not mention any woman witness at the event and women could not become priests or bishops like the men (Kilgo). Whatever roles women traditionally played in early Christianity, the leaders of the evolving Catholic church clarified that women could not have official positions in the orthodox Church (Kilgo 2006). Paul refers to women, as well as to men, as his fellow evangelists. Sources, like the Gospel of Mary Magdalene, also show that her Christian community regarded her as a disciple, a leader and a major teacher. This same Gospel relates how her brother Peter opposed her activity and suggested that the newly established Orthodox Church, based in Rome, did not approve of it. Another orthodox leader in Africa, Tertullian, denounced similar activities by another woman who was baptizing, preaching and performing other acts, which were not allowed women. As early as in the first centuries, there was a great deal of objection and prejudice towards the role of women in the church (Kilgo). A study found that the higher one’s educational level goes, the less is his sexist attitude and gender prejudice towards women and that religiosity in a dominantly Catholic country displays benevolent, though not hostile, attitudes towards the genders (Glick 2002). Established religions, like orthodox Catholicism, have consistently practiced and exhibited these sexist attitudes, which justify and reinforce structural inequality between men and women. Responses to interviews and results of the study provided evidence that increasing the level of education could reduce or solve conventional gender inequalities.