Time Travel
Time travel is the concept of travelling forward and backward to different points in time, much as we do through space. Humans are in fact always travelling in time - in a linear fashion, from the present to the immediate future, inexorably, until death. Some theories, most notably special and general relativity, suggest that suitable geometries of spacetime, or certain types of motion in space, may allow time travel into the past and future if these geometries or motions are possible. It has been confirmed that the effects of relativistic and gravitational time dilation can cause a traveller who starts at and returns to a point of origin that remains stationary, to arrive at a time farther in the future in that reference frame than their subjective elapsed time would indicate (a constrained form of time travel into the future). In physics, the concept of time travel has been often used to examine the consequences of physical theories such as special relativity, general relativity and quantum mechanics. There is no experimental evidence of time travel, and it is not even well understood whether (let alone how) the current physical theories permit any kind of time travel. Although theories do exist about the possibility of folding time to hop from one point to another Often it is a plot device used in science fiction and many movies and television shows to set a character in a particular time not their own, and explore the character's interaction with the people and technology of that time - as a kind of culture shock. Other ramifications explored are change and reactions to it, parallel universes, and alternative history where some little event took place or did not take place, but causes large changes in the future. Famous fictional time machines include the TARDIS from the long-running BBC science fiction television series Doctor Who and the titular time machine of H. G. Wells's novel. On film there were the modified Delorean of the Back to the Future trilogy, the telephone booth of Bill and Ted's Excellent Adventure, the space-time portal of Army of Darkness and at least the first three Planet of the Apes movies. Other books, films and series which feature time travel are A Connecticut Yankee in King Arthur's Court by Mark Twain, Timequake by Kurt Vonnegut, Star Trek IV: The Voyage Home, Star Trek: First Contact, the Terminator series, La Jetée, 12 Monkeys, Primer, Futurama, and Quantum Leap. Fictional time travel even exists in the medium of video games, such as Time Pilot, Chrono Trigger, The Journeyman Project, Blinx, Viewtiful Joe, Prince of Persia and Timesplitters. Resources about Time TravelNOVA Online | Time Travel Time Travel and Paradox Quantum time waits for no cosmos The time travel page What is Time travel Time travel paradoxes and science fiction Experiments on the change of the direction and rate of time motion by Vadim A. Chernobrov Time Travel TIME TRAVEL: Shaping the Future by Neil Johnson Space-Time Physics and the Future of Time Travel by Alex MacLellan Time Travel Visiting the Past Time Travel [Internet Encyclopedia of Philosophy] |
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Nostradamus: Time Travel and Prophecy - Looks at the possibility that the prophecies of Nostradamus the prophet is the result of a future time travel experiment. Special focus on whether time travel and sending messages to the past could be part of the same science and its consequences. |
Time Travel Portal - A forum about Time Travel, Time Machines and Time Travellers. |
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