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  2. 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.

  3. How to Build a Time Machine - Wikipedia

    en.wikipedia.org/wiki/How_to_Build_a_Time_Machine

    How to Build a Time Machine by Paul Davies is a 2002 physics book that discusses the possibilities of time travel. It was published by Penguin Books . In this book, Davies discusses why time is relative, how this relates to time travel, and then lays out a "blueprint" for a real time machine.

  4. 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 ...

  5. Quantum mechanics of time travel - Wikipedia

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

    Researchers have explored Deutsch's ideas further. If feasible, his model might allow computers near a time machine to solve problems beyond classical capabilities; however, debates about CTCs' feasibility continue. [15] [16] Despite its theoretical nature, Deutsch's proposal has faced significant criticism. [17]

  6. J. Richard Gott - Wikipedia

    en.wikipedia.org/wiki/J._Richard_Gott

    Paul Davies, How to build a time machine, 2002, Penguin popular science, ISBN 0-14-100534-3 gives a very brief non-mathematical description of Gott's alternative; the specific setup is not intended by Gott as the best-engineered approach to moving backwards in time, rather, it is a theoretical argument for a non-wormhole means of time travel.

  7. 50 Inventions From The Past That Were Amazingly Innovative - AOL

    www.aol.com/98-historical-inventions-were-ahead...

    When you think of a vending machine, things like snacks, sodas, or even pharmaceutical supplies may come to mind. But you might be surprised to know that the first ever vending machine actually ...

  8. Ronald Mallett - Wikipedia

    en.wikipedia.org/wiki/Ronald_Mallett

    The presence of closed timelike lines indicates the possibility of time travel into the past. This creates the foundation for a time machine based on a circulating cylinder of light. Mallett's book, Time Traveler: A Scientist's Personal Mission to Make Time Travel a Reality, co-written with author Bruce Henderson, was published

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