Time Travel

Topics: Time travel, Time, General relativity Pages: 6 (2094 words) Published: March 28, 2011
Time Travel

Mark Jacob de Paz

Course: Comm 2
Instructor: Mrs. Noemi Agner
Date: March 14, 2011


Time Travel

Thesis Statement
Time travel is possible.
Time travel
A. Definition of time travel
B. Origins of the concept
Theories about time travel
A. Time travel forwards
1. Time dilation
2. Time perception
B. Time travel backwards
1. Using wormholes
2. Special spacetime geometries
Philosophical understandings
A. Grandfather paradox
B. Novikov self-consistency principle


Time Travel

People often wish that they could go back to the past and correct their wrong behaviors or go to the future and see what it turns out to be like. The idea of time travel has been the topic of science fiction movies and novels, and has been studied by great scientists throughout history. “Ideas of time travel have existed for centuries, but when Albert Einstein released his theory of special relativity, he laid the foundation for the theoretical possibility of time travel. As we all know, no one has successfully demonstrated time travel, but no one has been able to rule it out either. Time has fascinated people throughout the dawn of civilization. People have spent their life thinking about these concepts and the ideas behind them” (Kulkarni,2011). Although the possibility of time travel has been criticized, a lot of modern scientists still argue that time travel is possible. This paper attempts to prove that time travel is possible. To better understand this assertion, we first need to study where this concept started and primarily the theories supporting this claim. Then, how it would be possible to travel to the future and to the past. Also, the philosophical understandings which include paradoxes and other arguments that tend to disprove the possibility of time travel. Ideas about time travel has been passed from generations to generations and it could be traced back to the years before the birth of Jesus Christ. “ Time travel is the concept of traveling forward and backward to different points in time, much as we do


through space” ( Crystalinks, 2010). Many of the early works featuring elements of time travel have been claimed to be the earliest so there is no widespread agreement as to which written work should be recognized as the earliest example of a time travel story. Ancient folk tales and myths sometimes involved something the same to traveling to the future in time for example, in Hindu mythology, Mahabharata and Urashima Taro which is a Japanese tale. “Memoirs of the Twentieth Century” by Samuel Madden was an early story with ideas of time travel backwards. The first time travel was described through the book of Charles Dicken entitled “ A Christmas Carol” , Ebenezer Scrooge, as the main character, is transported to Christmas past, present and yet to come. Two stories entitled “El Acronopete” and “The Time Machine” written by Gaspar y Rimbau and H.G. Wells respectively are the first stories to feature time travel with the aid of time machines. Again, a lot of people have been talking about the concept of time travel since years before the birth of our Lord and until now. What are the theories about time travel and what are Einstein's theories supporting it ? The answers are the most notably theories of time travel: forwards and backwards and supported by the theories of relativity: the special and general relativity. According to Brian (2001) “Einstein’s theories of general and special relativity can be used to actually prove that time travel is possible”. In 2011 Kulkarni claimed that “the special theory gives a unified account of the laws of mechanics and of electromagnetism. Einstein rejected the concepts of absolute space and time and made two postulates (a) the laws of nature are the same for all observers in uniform relative motion and (b) the speed of light is the same for all such observers”. Therefore, with the knowledge and...
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