Philosophy of Space and Time Essay Example for Free

Philosophy of Space and Time Essay At the end of the nineteenth century, physicists were looking back at an era of progress unrivaled in known history. Classical, or Newtonian, physics explained the motion of objects in space and on earth, Kepler’s laws accurately predicted planetary motion, and Maxwell’s electromagnetic unified electricity and magnetism theory and predicted, correctly, that electromagnetic waves behaved exactly like light; paving the way for the recognition that light itself was an electromagnetic wave. It appeared that the world was explained. It was not to be. Two revolutionary theories were introduced that changed forever the way in which scientists and lay people alike view the universe. These were the Theory of Relativity and Quantum Physics (Giancoli 730) . Physicists at the turn of the century assumed that any wave must travel through some medium. This assumption required there to be some transparent substance in space that would allow light to propagate through it, much like a ripple on the water. They knew that this could not be air, since light traveled from stars to the earth through the emptiness of space. Another medium had to be responsible. This medium was named the Ether and it was thought to exist in all space. They understood that the ether had a zero density, since it was very difficult to detect (Giancoli 731). Two physicists in the 1880’s, Michelson and Morley, designed a clever experiment that they thought would determine the speed of the Earth in orbit around the sun. They anticipated being able to measure the speed of light in different orientations. They anticipated that the speed would vary with the orientation of the light wave to the ether. What they discovered was that the speed was constant. They believed there experiment was a failure. What their experiment showed, although they did not accept it, was that the ether did not exist. In 1905 Albert Einstein proposed a theory that reconciled this and other issues. This theory would change how scientists and lay people viewed space, time, mass, and energy (Giancoli 730). Einstein’s equation relating mass and energy, E = MC2, is easily recognizable. It brings together matter and energy as different forms of the same substance. This would imply that mass could be converted directly to energy, and vice versa. This radical departure from classical physics had several implications, both for scientists and for our culture. For scientists, the theory of relativity established the ultimate speed limit. The speed of light in a vacuum, c, is as fast as anything can go (Giancoli 748). Culturally, the discovery of relativity and quantum physics made possible such things as nuclear power, nuclear weapons, and medical imagery such as MRI Scans, CAT Scans, and PET scans. The advent of nuclear weapons changed our society. Nuclear attacks were a common theme in Hollywood films. Citizens built there own bomb shelters, argued the pros and cons of the nuclear power industry, and have enjoyed the advances in medicine. Indeed, our society now takes for granted these advances, and assumes that there will be a continued rapid advance as our knowledge base improves. Cosmology, or the study of the universe, has benefited from the theory of relativity. Many phenomenons, such as black holes, are only describable in terms of relativity and quantum physics. The advent of space telescopes, radio telescopes, and optical telescopes that detect emissions outside of the visible spectrum have shown the world the images of a universe unlike the one that was believed to exist just a hundred years ago (Giancoli 914-942). The search for extra-terrestrial life was instigated with the federal governments backing. The private citizens embraced this search, of 3 so much so that when the government quit funding SETI, individual citizens continued to support it. The discovery of relativity, quantum physics, and the new nature of cosmology has changed not only the scientific community but society as a whole. SETI, CAT scans, an Einstein’s name are household terms. The changes in perception of the world around us really cannot be overstated.

KAL 801 :: essays research papers

Flight Synopsis Flight KAL 801 was scheduled to fly from Kimpo Airport in Seoul, Korea to A.B. Won Guam International Airport in Agana, Guam. The flight crew had met earlier to discuss the flight release, weather conditions and fill out all necessary paperwork. And on August 6th, 1997 at 9:27 PM the Boeing 747-300 departed Kimpo Airport for a three hour and fifty minute trip to Guam. The flight crew consisted of a captain, first officer and a flight engineer. The captain had several flight hours as a pilot in the Korea Air Force until Korean Air hired him in 1987. Not only did he have many hours flying a 747, he received a flight safety award from the company president, three months prior to the crash. He also earned two excellent evaluations in the simulator proficiency checks and passed the company’s mandatory Level three English test. In addition, the captain along with his first officer watched a video presentation based on the familiarization of the Guam Airport and studied approach charts several hours before the accident. (Krause, 2003) The first officer had also served in the Korean Air Force before joining the ranks with Korean Air in 1994. Although he was only two years younger than the captain, he had a high number of flight hours as a 747 first officer. However, his performances in the simulator evaluations were slightly above average. One instructor noted that his â€Å"altitude management on nonprecision approach was somewhat less than desirable† and adding that he was â€Å"somewhat slow to carry out directions† (Krause, 2003) The flight engineer was also a very distinguished pilot and was hired by KAL in 1979. Similar to the captain, he earned excellent ratings in his evaluations of crew management and simulator tests, and also passed the English proficiency exams. (Krause, 2003) â€Å"†¦a weak low pressure trough is moving slowly [through] the Mariana Islands†¦resulting in gentle to moderate easterly winds and scattered showers. The effects of the upper level low far to the northeast have diminished during the past 12 hours or so. Light to moderate showers should be expected except for isolated afternoon thunderstorms due to solar heating†, this was the weather report provided by the Guam Weather Station. However, at around 0122, the crew received a message via the Automatic Terminal Information Service (ATIS), â€Å"†¦wind calm, visibility seven [clouds] one thousand six hundred scattered, two thousand five hundred scattered, temperature two seven [Celsius], dew point two four, altimeter niner eight six, runway six in use.

Education Sector Essay

In a globalized economy with a high degree of competition among countries, the success of a nation depends on the educational level of its workforce. Technology has rapidly transformed education by extending learning space beyond the four wall of a classroom. Even though school plays the main role of education, technology offers verities of opportunities to learn more. Such as, Distance learning, online learning communities and access to vast resources and databases, etc. with the help of Information and communications technology (ICT), it allows to improve quality of teaching and learning worldwide. (Bokova, 2013) There are both positive and negative impacts due to technological advancement in education sector. Affordability: Even though developed counties are able to afford this, most of the developing countries struggle to equip the basic ICT devices. However there are things which they can afford, such as mobile phone, it would help to connect teachers, students, parents and administrators. Capacities: National policy-makers sometimes may lack to formulate ICT in educational policies. In some developing counties teaching institutes frequently lack to trainer the teachers with ICT education practices. Which would lead to less ICT education in school levels. Inclusion: People who live in rural area, disabled people typically receives low quality educations, even though they have special educational needs. Introduction of ICT would favour inclusive education and reduce inequalities. Content: there are more teaching modules available by the help of ICT. Open Educational Resources (OERs) hold significant potential to accelerate free access to knowledge and facilitae the adaptation of content to local needs and languages. Quality Assurance: ICT can help the education system to be much easier, but some developing countries still haven’t been duly reformed to embrace these new learning outcomes. And issues such as quality of ICT-based learning and safety of children online needs to be addressed. (Bokova, 2013).

Beowulf And The Pagan Elements - 1944 Words

Beowulf was written in England about sometime in the 8th century. This provides us with an idea of that when the poem was written during a time when society was in the process if being converted from the Paganism Religion to the Christianity Religion. The Christian influences were combined with the early folklores and heroic legends of the German tribes, that whether or not Christian and bible influences were added later on to the original document. The fact that Christianity and Paganism were so closely intertwined with each other in the poem is the reason that Beowulf has both of the influences of Christianity and Paganism influences. The Pagan elements in the poem of Beowulf are shown by the character’s having superhuman personifications. Beowulf is depicted as a superhero, who takes it upon himself to save the great Danes from the monster Grendel. In his battle with Grendel, Beowulf chooses not to use weapons against the monster Grendel. He wants to fight him in a fair fig ht, he relies on his super strength to win the fight. During the fight, his strength takes over and he wrestles with Grendel until he is able to rip, Grendel’s arm out of socket. Let’s start with how Christianity was introduced, by the character Beowulf always trusting in god as his protector and how that God uses him as an epic hero type to slay the monsters Grendel and the other monsters as well that are hurting King Hrothgar and his people. Beowulf’s courage and faith is shown throughout the story,Show MoreRelatedChristian and Pagan Elements in Beowulf926 Words   |  4 PagesChards CHRISTIAN AND PAGAN ELEMENTS IN BEOWULF The poem Beowulf is full of Pagan and Christian elements, this combination gave place to many discutions about the origin of the poem. On the one hand some scholars have said that this is the result of a transcription made by some monks where they added the christian elements, on the other hand it is believed that the poem was written in a period in which the Anglo-Saxons were being converted from their worship of Germanic Pagan gods to the ChristianRead MoreTheme Of Christian And Pagan Elements In Beowulf978 Words   |  4 Pageseowulfs representation of Pagan and Christian elements Beowulf was written during the time that society was in the process of converting from Paganism to Christianity. Early Christianity developed in the Roman Empire, where many religions were practiced and formed into paganism. Paganism is commonly used to refer to various, largely unconnected religions and beliefs from that time period. Beowulf was written in England between the 8th and 11th century. The name of the author is unknown, but referredRead MoreComparing Beowulf And The Epic Of Beowulf937 Words   |  4 PagesEmpire. In the story Beowulf, his actions portray him, indeed be an epic hero. Both Christianity and Paganism are both portrayed throughout the epic Beowulf. Beowulf frequently speaks of God throughout the story, while there are also many Pagan elements that are evident throughout the story as well. In addition, It s hard to ignore the Christian and Pagan elements in Beowulf. These types of elements are what define the heroic warrior in the epic Beowulf(Vengeance the P agan and Christian Inspiration)Read MoreTheme Of Paganism In Beowulf1179 Words   |  5 Pageslongest epic poem ever written in the genre of Old English is â€Å"Beowulf†, it has been composed in the native language as spoken during the Anglo-Saxon reign in England, preceding the Norman Conquest. Beowulf is regarded as a classic tale which relates the defeat of evil and triumph of good. The poem is divided into three acts. Christian and Pagan Influences in Beowulf: The Pagan deities, rituals as well as pagan ideas influenced Beowulf, when it was being created, though the passing down of the epicRead MorePaganism In Beowulf953 Words   |  4 PagesChristianity and Paganism in Beowulf Beowulf was composed when England was transitioning from a pagan to a Christian culture. In chapter 3 of A Little History of Literature, it is said that Beowulf was likely written by a Christian monk who inserted Christian themes into the story. This is why Beowulf reflects both Christian and pagan views. These two religions and their elements affect the story in different ways. There are pagan views of fate and fame in Beowulf, but there are also ChristianRead MoreBeowulf Is A Pagan Work Essay519 Words   |  3 Pages The poem Beowulf was written in England sometime in the 8th century. It was written during a time when the society was in the process of being converted from paganism to Christianity. The Christian influences are combined with early folklore and heroic legends of Germanic tribes. Yet, the pagan elements in the epic poem Beowulf clearly overshadow the Christian elements, and it is visible in the character’s superhuman personifications, their hunger for revenge, and their strong belief in fateRead More Beowulf: Christian Vs Pagan Influence Essay1652 Words   |  7 Pages The European epic, Beowulf, was written sometime in the eighth century in England. This time period provides us with an idea for the mixture of Christian and pagan elements because of an English society that was in the process of converting from Paganism to Christianity. Examples of Pagan and Christian traditions are presented all throughout literature. Many of the influences deal with what it going on in the world, when the piece is written. When Beowulf was written, St. Augustine had just comeRead MoreBeowulf as a Pagan Oral Tradition Essay1658 Words   |  7 Pages The unknown author of Beowulf uses examples throughout the poem that suggest the story comes from an oral tradition. In the poem Beowulf, a Germanic scop, or bard, recites poetry orally, or in a song, usually telling stories about historical triumphs and adventures. These poets were referred to in this epic poem as carriers of tales..., traditional singer[s] deeply schooled in the lore[s] of the past (Beowulf 50). T his was common in Germanic culture. Scops would keep folkloric heroes aliveRead MoreChristianity : The Rise Of Christianity1512 Words   |  7 PagesAnglo-Saxon tradition, which is from where the epic poem Beowulf is thought to have originated circa 550 AD. Due to the origins of Beowulf being surrounded by Pagan tradition and culture and reliance on the method of oral recitation of the story, the poem holds Pagan influences. Examples of these influences include the monsters that Beowulf faces in the story, idol worship, and burning the dead among many other elements. Also around the time of Beowulf, the rise of the Jesus Movement, which eventually becameRead MoreReconciling Ingrained Traditions with Newly Emerging Christianity1203 Words   |  5 Pages Before the eighth century, England was a pagan society, the English originated from a society marred in idolatry and polytheism. The intermingling of Christian and pagan elements in Beowulf are consistent with the attitudes toward religion that are found in Bede’s Ecclesiastical History of the English People. Beowulf was written in the Middle Ages (500-1000) on Scandinavia, which was a highly pagan society, however the narrator is telling this story within the timeframe of medieval Anglo-Saxon