Essay Time Travel

Essay Time Travel
Time travel is feat thought by most to be impossible. After all time travel is what many science fiction movies are made of. Let us not forget such
movies as "Back to the Future" or "The Time Machine." Yet unlike those movies time travel is not necessarily fiction. "We are in our own time
machines, our hearts are pumping blood, we're breathing, we are existing through time (at least until our own personal time machines seriously
malfunction)." (Need help citing this!) Still surrounding this topic is a series of theories, and surrounding these series is a number of flaws. Theories
and flaws that need to be explained to fully understand the idea of time travel. First things first we must state the basics.
To...show more content...
"This implies that two observers moving at different speeds, say, will measure different time intervals between the same two events."(Davies 1)
For example say there are two people, Bob and Bobette, if Bob is traveling at x speed and Bobette is traveling at a speed of 2x, the amount of time
passing would differ between Bob and Bobette. So what does this have to do with anything? Well I'll tell you. Now this is pure fiction it is being
used to show a point. Say we are traveling to Andromeda, which is 2.2 million light years away (help). We first set the acceleration to 1g (the
gravitational field of the earth) because if we could accelerate to infinity we would be smashed to the size of an atom (help). So at 1g we should
reach our maximum speed (the speed of light) in 354 days (help). After that it would take no time to get there at all since the time to get there would
have shrunk to zero (help). So assuming we go there just to come back, it should take us a little under two years to get there and back. So we would
have only aged two years, while the earth would have aged 2.2 million years. Thus us theoretically we would have travelled to the future.
Here's where it gets complicated. Travelling back in time requires faster than light speeds. But that is impossible you can't go faster than light,
otherwise you would be flattened to an infinitely thin film. Yet there are ways around the light barrier. Worm holes. Wormholes don't allow you to
travel at speeds
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Advantages Of Time Travel
Time travel is traveling to another place in time. It can be traveling into pass or the future. Time travel can be the solution to a lot of problems in the
world. We will be able to prevent things from happening by going into the past and change our decisions or we can go into the future and prepare for
it or try to prevent it too. There are a lot of research going on with time travel but it hasn't been done by any human yet. Time travel come with
challenges like paradoxes, especially when time traveling into the past. I will discuss the different possibilities of time travel in the future and in the
pass. You cannot move through time by being motionless. You have to be in a different reference frame which will help you distinguish
...show more
content...
For time dilation, if you're in a reference frame, that reference frame has a proper time associated with it. It can be measured with clock, or your
watch. Observer one is moving in his reference frame and observer two in the Earth frame which also has a proper time. The clocks are
hypothetical clocks called a light clock. They have two mirrors parallel to each other with single photon bouncing between them. Each bounce is
called a tick and their length depends on how big your light clock is. For example, a light clock that is 150,000 kilometers would take two ticks, to
make a second. These type of clocks are not the best because if we are off by the tiniest amount, whether or not these things were exactly parallel, it
would cease to work. They are possible but just very precise which is not the best for us. The light clock time must match the person's time on their
watch. In these frames, the speed of light is always constant. Meaning that observer one is going to measure speed of the photon as traveling the
same as observer's two photon even though they are going at different speed. From observer's one perspective, its photon needs to travel a longer
distance but still traveling at the speed of light. So we can conclude that the ticks on observer's two clock happen slower than the ticks on

Essay on Exploring Time Travel
An essential requirement for the possibility of time travel is the presumption that future and past were somehow real. But according to one popular
view only the present is real, and to suppose that the past or future are also real is to suppose that the past and the future are also present –– a
contradiction. According to this sort of Heraclitean metaphysical conception, the future is genuinely open: there is no realm of determinate future fact,
no denizens of the future to identify or talk about, though of course –– in the fullness of time –– there will be. Travel to the future on this view would
be ruled out because there is simply nowhere to go.
The past, though, is spoken of as fixed and determinate and not subject to change....show more content...
(Ayer 1956, p. 158).
It is well known that chronological discrepancies arise in connection with the special and general theories of relativity, quite independently of the
question of time travel. But relativistic chronological discrepancies are benign in way that time travel discrepancies are not. What would count as a
case of travelling into the past? We can conceive that after a certain time having experiences which are exactly like those of 1920. It is just this kind
of thought experiment that makes time travel conceivable. But we would not be compelled to treat such experiences as decisive evidence of having
traveled into the past. They might be taken as evidence of serious cognitive disorder, for example.
David Lewis has argued that time travel stories are perfectly coherent and it is instructive to examine his defense of the possibility of time travel.
Lewis does not reject, but accept the reality of future and past. The world we live in, according to Lewis, is a Parmenidean world: 'a four–dimensional
manifold of events' and the occupants of the world are four–dimensional aggregates of stages –– 'timelike streaks' (1976, p. 145). However a time
traveler is not like other aggregates; 'if he travels towards the past he is a zig–zag streak' (1976, p. 146). There might also be stretched out streaks
which are travelers into

Time Travel : Or Apocalyptic?
Time Travel: or Apocalyptic: Science Fiction We have discussed, over the semester, several different common themes of science fiction. But there are
three common themes of science fiction that stick out the most when reading the novel, The Transall Saga by Gary Paulsen, which would be extreme
environmental changes, time traveling, and post–apocalyptic situations. The bluish–white light that transport Mark through time, thousands of years
into the future and the way the people look with their webbed feet would serve as the novums within the story. Gary Paulsen wrote this book in 1998
and would best fit into the definition we discussed in the beginning of the course given by the Oxford English Dictionary in 1989 which reads,
"Imaginative fiction based on postulated scientific discoveries or spectacular environmental changes, frequently set in the future or on other planets
and involving space or time travel." Although the Oxford English Dictionary definition leaves out the apocalyptic theme, it fits the story almost to a tee.
Here is a little bit of information about the author to help understand the novel better. Gary Paulsen was born in Minneapolis, Minnesota on May
17th of 1939. He is currently 77 years old. Gary ran away at just 14 years old because of the way his parents argued and fought all the time. He was
adventurous during his childhood and I assume most of his life, which gave him a base for most of his works. Gary graduated high school in 1957
with just a D

Time Travel
Time Travel
Mark Jacob de Paz
Course: Comm 2
Instructor: Mrs. Noemi Agner
Date: March 14, 2011
2
Time Travel
Thesis Statement
Time travel is possible.
Outline:
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 Conclusion

3
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...show more content...
"In 1915, Einstein developed his ideas to form the General Theory of Relativity, in which he considered objects that were being accelerated with
respect to one another. He compared the forces of acceleration and gravity and found them to be indistinguishable. For example, an astronaut standing
in a rocket on a launch pad would feel himself pressed against the floor because of gravity. If the same rocket was in outer space and not affected by
gravity, but with its engines turned on so that it was accelerating, the astronaut would again be pressed against the floor. If the acceleration due to the
engines were the same as the acceleration due to gravity, the astronaut would have no way of telling whether the rocket was at rest on the earth or
accelerating in outer space unless the looked out of the window. Einstein stated that the attraction to the Earth of a rocket that is resting on a launch pad
is equivalent to the acceleration of the rocket. So although in three–dimensional space, the rocket remains stationary, in four–dimensional space–time
the rocket is in motion along its world line. The upshot of this motion in space–time is that gravity also makes time run slower"( Kulkarni, 2011).
What are the kinds of time travel and what are the ways that will help scientists prove that time travel is possible? The two kinds of time travel are
time travel forwards and time travel backwards, which will be made through time

Time Travel
Time Travel Mark Jacob de Paz Course: Comm 2 Instructor: Mrs. Noemi Agner Date: March 14, 2011 2 Time Travel Thesis Statement Time travel is
possible. Outline: 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 Conclusion 3 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...show more content...
In addition, time travel to the future would be possible through time perception, where the body temperature and metabolic rate of the creature is
decreased. Some scientists research on the possibility of time travel to the past and the results demonstrate that it will become true. Certainly, they
displayed two possible methods which will help an individual to be able to travel backwards, these are by using wormholes and through the idea of
special space time geometries. One view (Brian, 2001) is that, "Wormholes appear to be the main way that time travel into the past would be 7
possible. Wormholes are holes in the fabric of four dimensional space–time, that are connected, but which originate at different points in space and at
different times". Crystalinks (2010) asserts that "A proposed time–travel machine using a wormhole would (hypothetically) work something like this: A
wormhole is created somehow. One end of the wormhole is accelerated to nearly the speed of light, perhaps with an advanced spaceship, and then
brought back to the point of origin. Due to time dilation, the accelerated end of the wormhole has now experienced less subjective passage of time than
the stationary end. An object that goes into the stationary end would come out of the other end in the past relative to the time when it enters".
Although, it is hard to build a time machine like a huge spacecraft,

Time Travel : Science Fiction
Time travel in science fiction movies opens doors to many intriguing scenarios and possibilities, imagine travelling to the past to witness past events
that happened years ago, or maybe to relive a certain situation that you enjoyed back then, or to travel to the future to see the development of humanity
in the many years to come, or travel to the future to see the outcome of a decision that you made today, on your future life.
TIME, Can it be stopped? Manipulated in a way that we see fit? These are the questions human beings spend endless hours thinking about, staring into
the limitless sky and asking oneself is time travel really possible?
Countless movies touched upon the idea of time exploitation. Science fiction in the past and in the modern world has clung tightly to the idea of time
travel whether it's travelling backwards or forward through time. Maybe writers are so obsessed with the idea of time travel is because of the
uneasiness of our present and uncertainty about our future, along side our nostalgia towards the past.
Time travel has been explored in differently in several science fiction movies. The aim of this paper is to examine different movies and their different
means of time travel used in each of the movies through out the years.
If we talk about time travel we can't not talk about "Back to the future", this movie deals with an escape to an idealized past with an attempt to alter the
present and the future. This desire to escape to the past was created

The Value of Time Travel Essay
People have often thought of going back in time because of regrets or mistakes they want to fix in the past. The only way to go to the past is time
travel there. Time travel has been know as science fiction but now scientist have been believing time travel is possible based on the physics laws. If
time travel is possible, then will it be helpful for human begins to go back to the past. Time travel can't be worth it because if you change something in
the past, it will affect a lot in your future. The people you thought you knew may not be the same people in the future because you change something in
the past. There are different theories stating on that there may be parallel universe and other versions of us. There are philosophical...show more
content...
Scientists have hope that modern technology will help them discover wormholes and explore them. Another method in physics on how to time travel is
through black holes. A black hole has been discovered by Einstein's theory ofgeneral relativity, which showed that when a star dies, it leaves behind a
small, dense remnant core. If the core's mass is more than the sun, the force of gravity overwhelms all other forces in which it transforms into a
black hole. Scientists have said that black holes can destroy anything that goes in it and it could be hard to get out of a black hole, once something
went in it. In an interview by physicist Lior Burko, he states, "One possibility is that black holes may allow us to travel to very remote places in
the universe, or another universe entirely," (Kahney, "Black Holes and Space Time"). Black holes may have evidence that there are different kinds
of parallel universe. Even though it is still unclear what black holes can do as in destroying everything that it goes in or if it leads someone to time
travel into another parallel universe. Scientist are trying to create a black hole, here on earth, to see what blacks can do as in sending information to
another universe. Besides time travel theories on physic and philosophical, there are also paradox theories about time travel. One paradox theory is the
grandfather paradox. The grandfather paradox means that if someone can go back in time and

Time Travel
For many years time travel was the stuff of science fiction. This was all just part of the world's imagination until recently. Scientists now believe that
the current laws of physics allow us to travel though time. They believe that we can now travel back to see our founding fathers sign the declaration of
independence. We could travel to 2999 to witness the birth of the next new millennium. Such travel would require a machine capable of withstanding
great pressures and incredible amounts of speed. The act of actually traveling though time is for the most part, agreed upon, but the implications of
such travel is not so decided upon. Many different theorists have different views of what could happen and some go, as far as to say that if we...show
more content...
Time for a stationary observer on earth and for an astronaut on a spaceship of high velocity is different. A person's heart beats to the rhythm of the
realm it is in. One realm of time seems the same as any other to the person in the realms, but not to an observer outside that realm that can see the
difference. As an example, astronauts traveling at 99% the speed of light could make a trip to the star Procyon that is 11.4 light–years away in 23 earth
years round trip (Hewitt 229). Because of time dilation, it would seem that only 3 years passed for the astronauts, there clocks would be 3 years
older; they would be biologically only 3 years older (Hewitt 229). It would be the mission control people that would appear to be 23 years older.
The question is why dose this happen. Let's say that we are in our hometown, looking at the grandfather clock that is in the center of town. The clock
reads 12:00 noon. Light from the sun bounces off the face of the clock and hits our eyes. We then turn our head and the light misses us and travels off
into space. In space, there is a space ship that is traveling at the speed of light. An astronaut looks out his passenger–side window and sees the
reflection of the clock. It reads 12:00 noon. As he continues to move at the speed of light, he keeps up with the reflected face of the clock. In the
space ship time would pass as normal, but time in the universe would have seemed to stop. This might sound like

time travel Essay
For many years time travel was the stuff of science fiction. This was all just part of the world's imagination until recently. Scientists now believe that
the current laws of physics allow us to travel though time. They believe that we can now travel back to see our founding fathers sign the declaration of
independence. We could travel to 2999 to witness the birth of the next new millennium. Such travel would require a machine capable of withstanding
great pressures and incredible amounts of speed. The act of actually traveling though time is for the most part, agreed upon, but the implications of
such travel is not so decided upon. Many different theorists have different views of what could happen and some go, as far as to say that if we...show
more content...
To get the other half we have to convert our thinking from moving though time to moving though space–time (Hewitt 213). When we move, we not
only move through space, we move though time. This is the idea of space–time. If a person were to stand still, they would be moving only though time.
If they moved a little bit, they would be moving though space a little bit, but still mostly though time. If one were to travel at the speed of light, what
changes would they experience in time? The answer is simple; they would be traveling through space, with no travel though time (Hewitt 214). They
would be as ageless as light, for light travels though space only (not time) and is timeless. > The frame of reference of a photon, a particle of light,
a trip across the universe would take no time at all (Hewitt 214).
To understand how traveling though time would work, we must first understand how time and space can be stretched. Motion in space affects
motion in time. Whenever we move through space, we to some degree alter our rate of motion in time. This is known as time dilation, a stretching
of time that occurs ever so slightly for everyday speeds, but significantly for speeds approaching the speed of light. If we were to attempt to travel to
the nearest star, Alpha Centauri, which is 4 light years away, even traveling at the speed of light would take 8 years round trip (Hewitt 228). The
center of our galaxies is something like 30000 light years away and at the speed of light

Is Time Travel Possible? Essay
Back to the Future, Doctor Who, Star Gate, Bill and Ted's Excellent Adventure, Terminator, The Time Machine, and so on so forth. These movies and
TV shows have one thing and common witch as your can guess is time travel. But if you look at each single one separate not one time travel is the
same from the other. Before we begin we shall learn what time travel is. Time travel is when one person, matter, or object moves in a three dimensional
direction in time. The three dimensions are length, width and height but for this explanation we can also put it as forward and backward, left and right,
and up and down. If we add the fourth dimension which Albert Einstein's Theory of Relativity (Guidry) has shown to be time to these three dimensions
...show more content...
"But time dilation due to velocity means that clocks for astronauts in space run slightly slower relative to people who are on ground." (Atkinson)
This also happens to our GPS's and satellites in the air time travel every year that they need special calibration to not throw someone's direction off
by 6 miles. "The effects of gravity, as well as the satellites' increased speed above the Earth relative to observers on the ground, make the unadjusted
clocks gain 38 microseconds a day. (Engineers make calibrations to account for the difference.)" (Howell) Traveling at the speed of light is nearly
impossible you have to consider having the right space ship, the g forces being pulled on the human body, and the fuel to be able to get up to that
speed. "To approach the speed of light means circling the Earth pretty fast. Seven times a second. But no matter how much power the train has, it can
never quite reach the speed of light, since the laws of physics forbid it." (Hawkins) "A really big time warp requires an intense gravitational field."
(Davies) That's were a wormhole comes in, "A wormhole is a theoretical 'tunnel' or shortcut, predicted by Einstein's theory of relativity, that links two
places in space" (Hawkins). This is commonly seen in the sci–fi show Star Gate or Time Bandit. "The truth is that wormholes are all around us, only
they're too small to see" (Hawkins). So small that they can

Essay on Time Travel
Time Travel
First of all, to give you a better concept of time I will use a personal theory of mine. When you look up at the sky at night, at the stars, what are you
seeing? Do you think that collage of stars actually exists? Most of them do not. When you look at the sky at night you are seeing the past because it
takes an obscene amount of time for the light from those stars to reach earth, and in that time those stars may have disappeared.
It works both ways. When an inhabitant, if there is one, on a planet around the star that you are looking at looks at our sun he is also seeing the past.
So here we are, at the main idea of my speech – the possibility of different times and time travel.
The main question here is: How do...show more content...
This has been misinterpreted many times. Einstein said that no solid object can accelerate to the speed of light. He did not state that you could not
harness the power of an object or energy already going the speed of light, or faster. Another restriction is that the faster you accelerate, your mass
increases and therefore to meet the speed of light you would need an infinite amount of energy because your mass would be infinite. We'll ignore that
for now.
. Dr. Steven Preston of London says that assuming we can propel to the speed of light, we would have to do it at a rate that the human body can
withstand. We will use 1g, that being 1 gravitational force, or the same as you simply standing on the ground. If we use Einstein's theory then we
could accelerate to 1g in 354 days and just short of the speed of light. Using the star Andromeda as an example, which is 2.2 million light years
away (a light year being the distance light travels in a year), at that 354th day we would reverse engines and slow down to halt at Andromeda. The
entire trip would take less than 2 years, but unfortunately earth would have aged 2.2 million years. This is because, as I stated before, the faster you
go time slows down. We have now established how to travel into the future
So how would you get back to your own time? Or how would you travel into the past? Dr. Preston says consider the speed of light a barrier, or
essentially the present – that which cannot interact with the

Essay Time Travel

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