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  2. 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 concept in philosophy and fiction, particularly science fiction. In fiction, time travel is typically achieved through the use of a device known as a time machine. The idea of a time machine ...

  3. Tipler cylinder - Wikipedia

    en.wikipedia.org/wiki/Tipler_cylinder

    A Tipler cylinder, also called a Tipler time machine, is a hypothetical object theorized to be a potential mode of time travel—although results have shown that a Tipler cylinder could only allow time travel if its length were infinite or with the existence of negative energy.

  4. Scientists Have Determined How to Travel Back in Time ... - AOL

    www.aol.com/scientists-determined-travel-back...

    “The time machine is a natural consequence of the wormhole existing,” Toby Wiseman, a professor of theoretical physics at the Imperial College London who was not a part of the study, told New ...

  5. Time Machine - Wikipedia

    en.wikipedia.org/wiki/Time_Machine

    Time Machine may refer to: Time machine, a fictional or hypothetical device used to achieve time travel; Film and television. The Time Machine, a film by George Pal ...

  6. List of time travel works of fiction - Wikipedia

    en.wikipedia.org/wiki/List_of_time_travel_works...

    Jeff Slade (Michael French) uses a time machine to witness crimes in the past, then solve them in the present. 1998 2001 Seven Days: Christopher & Zachary Crowe A secret branch of the NSA uses a time machine to travel back in time to avert disasters. The machine, which was found at Roswell, New Mexico, can only jump back seven days. 1999 2001

  7. Time Machines: NASA goes virtual at CES - AOL

    www.aol.com/news/2013-12-15-time-machines.html

    Welcome to Time Machines, where we offer up a selection of mechanical oddities, milestone gadgets and unique inventions to test out your tech-history skills. In the weeks leading up to the biggest ...

  8. Quantum mechanics of time travel - Wikipedia

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

    The theoretical study of time travel generally follows the laws of general relativity. Quantum mechanics requires physicists to solve equations describing how probabilities behave along closed timelike curves (CTCs), which are theoretical loops in spacetime that might make it possible to travel through time.

  9. Time Machines: The military sphere - AOL

    www.aol.com/news/2013-11-03-time-machines.html

    Welcome to Time Machines, where we offer up a selection of mechanical oddities, milestone gadgets and unique inventions to test out your tech-history skills. If you've ever played the arcade ...