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  2. Time travel claims and urban legends - Wikipedia

    en.wikipedia.org/wiki/Time_travel_claims_and...

    The story of Rudolph Fentz is an urban legend from the early 1950s and has been repeated since as a reproduction of facts and presented as evidence for the existence of time travel. The essence of the legend is that in New York City in 1951 a man wearing 19th-century clothes was hit by a car. The subsequent investigation revealed that the man ...

  3. Time-traveler UFO hypothesis - Wikipedia

    en.wikipedia.org/wiki/Time-traveler_UFO_hypothesis

    Time-traveler UFO hypothesis. The time-traveler hypothesis, also known as chrononaut UFO, future humans, extratempestrial model and Terminator theory[1] is the proposal that unidentified flying objects are humans traveling from the future using advanced technology. Some notable people have given recent public exposure to the hypothesis, such as ...

  4. John Titor - Wikipedia

    en.wikipedia.org/wiki/John_Titor

    Titor's purported military insignia. John Titor and TimeTravel_0 are pseudonyms used on internet forums between 2000 and 2001 by an individual claiming to be an American military time traveler from the year 2036. [1][2] His posts discussed various aspects of time travel, and described future calamitous events, including a global nuclear war.

  5. Time travel - Wikipedia

    en.wikipedia.org/wiki/Time_travel

    The first page of The Time Machine published by Heinemann. Time travel is the hypothetical activity of traveling into the past or future. Time travel is a widely recognized concept in philosophy and fiction, particularly science fiction. In fiction, time travel is typically achieved through the use of a hypothetical device known as a time machine.

  6. Quantum mechanics of time travel - Wikipedia

    en.wikipedia.org/wiki/Quantum_mechanics_of_time...

    Quantum mechanics requires physicists to solve equations describing how probabilities behave along closed timelike curves (CTCs), theoretical loops in spacetime that might make it possible to travel through time. [1][2][3][4] In the 1980s, Igor Novikov proposed the self-consistency principle. [5] According to this principle, any changes made by ...

  7. Hawking's time traveller party - Wikipedia

    en.wikipedia.org/wiki/Hawking's_time_traveller_party

    Coordinates: 52°12′21″N 0°7′4.7″E. Stephen Hawking in 2008. On 28 June 2009, British astrophysicist Stephen Hawking hosted a party for time travellers in the University of Cambridge. The physicist arranged for balloons, champagne, and nibbles for his guests, but did not send out the invites until the following day, after the party was ...

  8. Philadelphia Experiment - Wikipedia

    en.wikipedia.org/wiki/Philadelphia_Experiment

    The Philadelphia Experiment was an alleged event claimed to have been witnessed by an ex- merchant mariner named Carl M. Allen at the United States Navy's Philadelphia Naval Shipyard in Philadelphia, Pennsylvania, United States, some time around October 28, 1943. Allen described an experiment where the U.S. Navy attempted to make a destroyer ...

  9. Time Travel: A History - Wikipedia

    en.wikipedia.org/wiki/Time_Travel:_A_History

    Certainly, time travel is a concept that philosophers have tried to grasp and theorize about ever since its invention. [5] Dave Goldberg wrote for Nature Physics that "As to the practical possibility of time travel, Gleick is something of a sceptic. Common sense, he argues, suggests that the past really is immutable, no matter how clever the ...