Time Travel Essays

The Benefits Of Time Travel
Although time travel has long been since considered as fable, there have been studies and theories
that appeared supporting the time travel. Einstein's theory of relativity supports time travel and with
this scientists have come up with theories of time travel. Other theories and many experiments have
been conducted to try and prove the possibility of time travel for humans. Einstein's theory of
relativity determined that the speed of light within a vacuum is constant no matter the speed at
which the observer is traveling and with this found out that space and time were intertwined together
in a continuum identified as space–time. In the theory of special relativity, time is said to move
slower or faster depending on the observer....show more content...
Travelling to the future is said to be easy. Einstein's theory of special relativity shows that for
people who are moving relative to one another time passes at different rates, although the effect is
only considerable when you travel near the speed of light. Let us say that you travelled in space
at about 99.5% of the speed of light. The year you have spent is space would be lesser than the
time that passed on Earth until you get back home. Many years have gone by on Earth while you
have only spent a few years in space. Travelling to the speed of light cannot be yet achieved as of
today's technology. There would be a great need for an unimaginable amount of energy to travel
near the speed of light. But time travel to the future has already happened. Cosmonaut Sergei
Krikalev travelled through time and holds the longest amount of time spent in space with 803
days. He orbited around the Earth travelling at around 7.66 km/s. Because of the high speed travel
and length of time he spent in space; he arrived back in Earth 0.02 seconds in the future which is
also due to time dilation. Although, he only travelled seconds in the future and not like the 5 years
or more in the future he was still able to arrive earlier without travelling in the speed of light. Time
travel can also occur in gravitational fields as stated in the theory of general relativity. Einstein
predicted that time passed more slowly for objects in gravitational
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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 of general 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

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

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,

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

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

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

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

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
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 : 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 : 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

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

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