Others have noted that we're all travelling forward in time (in fact, the theory relativity says that we are all travelling at the speed of light through spacetime) so I'll tackle the travelling-backward-in-time part of the question. And that breaks down into issues of whether backwards time travel is a theoretical possibility, and whether it's a practical one.
On the theorectical side, as Mike Garrow notes, special relativity suggests that all of spacetime exist in an eternal 'now' because the finite speed of light means there is no access to information - including notions of when someone else's 'now' is - faster than light can carry it. So, on the one hand, all of history is already written out and so you could contemplate reach back to points in spacetime that existed prior to your local 'now'. On the other hand, light only propogates 'forward' in spacetime ergo without adding exotic information carriers such as tachyons into the mix there is nothing that actually enable the reaching back to occur. The past is blocked by the light cone in Minkowski's spacetime. (Light cone).
Still on the theoretical side, Schroedinger's equation and other treatments of quantum mechanics, have nothing to say about time, so all descriptions of the evolution of systems are equally valid whether run forwards or backwards. Time is assumed to be 'out there' somewhere and quantum systems could, in theory, evolve in either temporal direction, but we don't experience or observe this. The de Broglie-Bohm solution to this and other troublesome ambiguities (e.g. results from double-slit experiments) requires 'pilot waves' (Pilot wave) to propogate backwards from every event in spacetime, including those of all the particles in an 'observer' in its futu...
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...traveller's situation gets much, much worse
Consider that the rotating planet is revolving around its sun at 108,000 km/h (and with momentum vector pointing towards Scorpio in April and Orion in October, giving a speed differential of 316,000 km/h and a ka-boom of about 150GJ, akin to 35 tonnes of TNT going off).
The Sun, in turn, is moving in an undulating orbit around the centre of the MIlky Way at 800,000 km/h (ka-boom would be 15 TJ - about a 3.5 kiloton baby nuke), which in turn is moving with the Local Group towards the Virgo Cluster, which in turn...... and so on and so on.
So, where would the traveller from the future actually land? Most probably actually nowhere, shooting at some relatively hefty velocity through empty space (maybe that's why we never observe them) because the planet now is certainly not be where it will be when the traveller leaves.
For many Westerners, more specifically the driven citizens of the United States of America, time is viewed as a straight line. Our children realize this, consciously or not, early on. They make timelines in school, their classes switch on the hour, their intelligence is measured on a scale. We are born, we come of age during adolescence. We set a goal, we work to achieve success. Birth and death, childhood and adulthood are stages that occur only once. Life is black and white. Separate. The past is the past, the future is the future. Traveling on a straight line, we can only look forwards.
I enjoyed reading about the Traveller’s adventures, his meeting and relations with creatures from the future like the Morlock’s (underground dwellers) and the Eloi (similar to small, unintelligent children). The owner/caretaker relationship between the Morlock’s and the Eloi, although symbiotic in ways, hinted at the decline of the human race based upon events occurring in the Traveller’s current time. That made me wonder, or perhaps I missed it, if the author could have done more to explore how the doom and gloom ending could have been changed. The premise ultimately was that today doesn’t really matter, because humanity was doomed anyway. Another issue, that was a bit depressing, was that since no one really believed the Traveller’s stories of the future, they couldn’t learn from what was said by the
If a two-way communicator existed across time for this to be achieved the two metaphysical considerations must be met. Firstly, Lewis highlights the that “time is one dimension of four”, in the fourth-dimensional world, suggesting that time is just as perceptible as any place and potentially where the time traveller will send the message. Second, fourth-dimensional spectrum also considers causation and possible reverse causation, that is there must be awareness for earlier events to be causally dependable on the future events, and therefore how communication will take place between two different times. Lewis argues that his grandfather paradox can provide solidarity with the past, only if a time traveller was to travel to the past, they would not be able to make any changes that may potentially lead to them never
The Time Machine is about a man who is a scientist and he wants to see
By going back and forth between the time frames, the first being in the present and the second being in 800,000, H.G. Wells lets the reader know that the time traveller has made it back from the future by providing passages that prove he made it home, to the present, alive. However, during the time span of the novel, the time traveller from the future did not know that he was able to escape the future. This changes the point of view throughout the story, even though the main character doesn’t change. Because of the changes in the time frame, the time traveller in the present and the time traveller in the future can be considered different people. “Selecting a little side gallery, I made my essay. I never felt such a disappointment as I did in waiting five, ten, fifteen minutes for an explosion that never came. Of course the (dynamite sticks) were dummies, as I might have guessed from their presence. I really believe that, had they not been so, I should have rushed off incontinently and blown Sphinx, bronze doors, and (as it proved) my chances of finding the Time Machine, all together into nonexistence.” In this excerpt, the time traveller is speaking of his own adventure after coming back from the future. However, he makes it sound as if he were in the future. By putting interjections into the story, he changes up the storyline
However, this cannot be extrapolated indefinitely. The universe’s expansion helps us to appreciate the direction in which time flows. This is referred to as the Cosmological arrow of time, and implies that the future is -- by definition -- the direction towards which the universe increases in size. The expansion of the universe also gives rise to the second law of thermodynamics, which states that the overall entropy (or disorder) in the Universe can only increase with time because the amount of energy available for work deteriorates with time. If the universe was eternal, therefore, the amount of usable energy available for work would have already been exhausted. Hence it follows that at one point the entropy value was at absolute 0 (most ordered state at the moment of creation) and the entropy has been increasing ever since -- that is, the universe at one point was fully “wound up” and has been winding down ever since. This has profound theological implications, for it shows that time itself is necessarily finite. If the universe were eternal, the thermal energy in the universe would have been evenly distributed throughout the cosmos, leaving each region of the cosmos at uniform temperature (at very close to absolute 0), rendering no further work
At a glance, the concept of time travel seems absurd. Yet given some thought, you realise the metaphorical wall between the past, present, and future is smaller than you think. Light travels at a constant velocity of about 300,000 km/s. It is common knowledge that nothing can travel faster than that speed (as I will prove later on) and therefore because your eyes are sensitive to visible light – everything you see is a light wave in some form. Because of this finite velocity of light, if we observe a star, say Alpha Centauri 4 – which is 4 light years away – we do not see it as it looks today, but as it looked 4 years ago! If you look at the Andromeda Galaxy – 2 million light years away – you see it as it appeared 2 million years ago. Just as when you look at yourself in a mirror – 1.5 metres away – the image you see of yourself is not you now, but you 10 nanoseconds ago (0.00000001s)2. In other words, you look into the past every moment of your life.
After Back to the Future comes Back to the Future Part II, the movie opens where the first one left off: October 26, 1985. Marty and Jennifer are just about to kiss as the revamped DeLorean flies into the driveway. Doc jumps out of the car and goes for the trash can, he grabs a banana peel and what is left in an old beer can and puts it in the Mr. Fusion. He frantically insists that Marty goes to the future with him. Doc then tell him to bring Jennifer because it concerns her too. They pull out of the driveway, Marty tells Doc there’s not enough road to reach 88 miles per hour and Doc replies, “Roads? Where were going you don’t need roads.”
We see the universe because we are who we are, and where we are. That is the only reason we can question the facts of our existence. Sometimes we answer questions that were never supposed to be addressed. Space-time has always been in question. Time travel would give mad unlimited powers. One could act as god, change the world the way He wanted. If the outcome did not meet satisfaction, then travel back in time and re-work the problem until satisfaction. With our primitive ways and violent acts, why would we give ourselves this weapon of infinite power? Maybe that is why we have not been told of how to build a time machine. However, the people in the future didn’t think. If they have created a time machine and are hiding it from us, then eventually we will stumble upon this discovery, since we are their past!
Over the years many movies had made their debut across the nation off and on the charts during the 1980’s. Many films have been considerably the best motion picture but none compare to Back to the Future. Directed by Robert Zemeckis and written by Bob Gale, Back to the Future has won countless awards including 1 oscar and another 19 wins. The award winning film was released on July 3, 1985. The film also includes the following actors which portray a select few of the main characters: Michael J. Fox (Marty McFly), Christopher Lloyd (Doc Brown), Lea Thompson (Lorraine Baines/McFly), Crispin Glover (George McFly), Thomas F. Wilson (Biff Tannen), Claudia Wells (Jennifer Parker), and James Tolkan (Mr. Strickland).
What were we doing when we unchained this earth from its sun? Whither is it moving now? Whither are we moving? Away from all suns? Are we not plung...
Today Oct 21, 2015 is 'Back to The Future' 30th Anniversary. In one paramount scene of 'Back to the Future Part II', October 21, 2015 is the day that Marty McFly arrives when he travels to the future. Such an epic film trilogy, the symbolic of this phenomenal scene is foretelling us that on Oct 21 2015, we are officially in ‘The Future’. Starting from today, this marks the beginning of our future, and we are here together witnessing this unspeakable moment. Now is ‘The Future’, it has been 30 years since Marty McFly and Doctor Emmett Brown bring us with them to their time traveling journeys.
Time Travel has always struck close to the imagination of the minds. From H.G. Wells ' "The Time Machine" to blockbuster films like "Back to the Future" - for years, time travel was the stuff of science fiction and crazy-eyed mad men but as physicists approach the subject of time travel with new advances in scientific theories and equipment, the possibility of time travel has become a more legitimate field for scientific endeavours. This paper will argue the possibility of time travel and the positive effects that this discovery will bring forth to modern day society: technological advancements.
There is nothing quite like traveling, going someplace new and finding out more about the world and yourself. Anyone can become a traveler it just takes a little bit of faith and courage. Traveling across the world or even across the country is a learning experience. When you are a traveler you see how people live and how different cultures work. It is the best educational experience you could give yourself. You see how the world works in a way no one can teach you. Seeing different cultures and people help build the person you want to be. If you are a traveler the world influences you, because when traveling, you see the good and the bad, and you learn from the right and the wrong. I am very lucky that I am able to be a traveler and see this
Now that we have explored my past, present, and future experiences with diversity, it is time to see how they are present within and effect each other. Firstly, let’s look into how my future is present in my past. The most obvious portion of my future that is in my past is my willingness and efforts to love and include everyone and to spread this world view. It took a fellow classmate of mine to demonstrate to my third grade self that we are all human beings and we all deserve to be treated as such. In my future, I aspire to demonstrate this world view to my students and inspire them to treat each other accordingly. This aspiration directly reflects my world view struggles I went through in third grade, for I want to help my students come to