Time Travel And Warp Drives Pdf

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Faster-than-light

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Everett and T. Everett , T. Roman Published Engineering. Sci-fi makes it look so easy. Receive a distress call from Alpha Centauri? No problem: punch the warp drive and you're there in minutes.

Facing a catastrophe that can't be averted? Just pop back in the time stream and stop it before it starts. But for those of us not lucky enough to live in a science-fictional universe, are these ideas merely flights of fancy - or could it really be possible to travel through time or take shortcuts between stars? Save to Library. Create Alert. Launch Research Feed. Share This Paper. Background Citations. Citation Type. Has PDF. Publication Type. More Filters. The Event Horizon 46 5.

View 1 excerpt, cites background. Research Feed. Highly Influenced. View 14 excerpts, cites background. Can a negative-mass cosmology explain dark matter and dark energy? Time-Travel, Causation, and the Direction of Time. Quantum general relativity. Related Papers. Abstract 5 Citations Related Papers. By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy Policy , Terms of Service , and Dataset License.

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Allen Everett and Thomas Roman. Sci-fi makes it look so easy. Receive a distress call from Alpha Centauri? No problem: punch the warp drive and you're there in minutes. Facing a catastrophe that can't be averted? Just pop back in the timestream and stop it before it starts.

The Alcubierre drive , Alcubierre warp drive , or Alcubierre metric referring to metric tensor is a speculative warp drive idea based on a solution of Einstein's field equations in general relativity as proposed by Mexican theoretical physicist Miguel Alcubierre , by which a spacecraft could achieve apparent faster-than-light travel if a configurable energy-density field lower than that of the vacuum that is, negative mass could be created. Rather than exceeding the speed of light within a local reference frame , a spacecraft would traverse distances by contracting space in front of it and expanding space behind it, resulting in effective faster-than-light travel. Objects cannot accelerate to the speed of light within normal spacetime ; instead, the Alcubierre drive shifts space around an object so that the object would arrive at its destination more quickly than light would in normal space without breaking any physical laws. Although the metric proposed by Alcubierre is consistent with the Einstein field equations, construction of such a drive is not necessarily possible. The proposed mechanism of the Alcubierre drive implies a negative energy density and therefore requires exotic matter. If exotic matter with the correct properties cannot exist, then the drive cannot be constructed.

Alcubierre drive

The present invention relates to a traveling method, more particularly to a traveling method for instantaneous travel in spaces or spacetime. Heretofore, in the academic world of physics, discussions have been heaped both on instantaneous travel in spaces including the universe space and on temporal travel in "spacetime" defined by special relativity. More specifically, the term "instantaneous travel in space" means so-called "space warp travel", that is, a so-called "warp drive" one hand, and "temporal travel in spacetime" is so-called "time travel", on the other hand. It is known that general relativity is a theory that universalizes and generalizes special relativity, and these two "theories of relativity" are namely "physics related to spacetime".

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WO2012046284A2 - Traveling method - Google Patents

Faster-than-light also superluminal or FTL communications and travel are the conjectural propagation of information or matter faster than the speed of light. The special theory of relativity implies that only particles with zero rest mass may travel at the speed of light. Tachyons , particles whose speed exceeds that of light, have been hypothesized, but their existence would violate causality , and the consensus of physicists is that they cannot exist. On the other hand, what some physicists refer to as "apparent" or "effective" FTL [1] [2] [3] [4] depends on the hypothesis that unusually distorted regions of spacetime might permit matter to reach distant locations in less time than light could in normal or undistorted spacetime. According to the current scientific theories, matter is required to travel at slower-than-light also subluminal or STL speed with respect to the locally distorted spacetime region.

Sometime after August , the US Department of Defense contracted dozens of researchers to look into some very, very out-there aerospace technologies, including never-before-seen methods of propulsion, lift, and stealth. Two researchers came back with a page report for the propulsion category, titled "Warp Drive, Dark Energy, and the Manipulation of Extra Dimensions. The document is dated April 2, , though it was only recently released by the Defense Intelligence Agency. The authors suggest we may not be too far away from cracking the mysteries of higher, unseen dimensions and negative or "dark energy," a repulsive force that physicists believe is pushing the universe apart at ever-faster speeds. However, Sean Carroll , a theoretical physicist at Caltech who studies and follows the topics covered by the report, had a lot of cold water to pour on the report's optimism. This is not the Maharishi saying we're going to use spirit energy to fly off the ground — this is real physics. But this is not something that's going to connect with engineering anytime soon, probably anytime ever.


With Time Travel and Warp Drives, Everett and Roman have written an illuminating exploration of the physics of time travel. What sets this book apart, however, is.


Time Travel and Warp Drives

A Scientific Guide to Shortcuts through Time and Space

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. Everett and T. Everett , T. Roman Published Engineering.

В ушах зазвучал голос старого канадца. Капля Росы. Очевидно, она перевела свое имя на единственный язык, равно доступный ей и ее клиенту, - английский. Возбужденный, Беккер ускорил шаги в поисках телефона. По другой стороне улицы, оставаясь невидимым, шел человек в очках в тонкой металлической оправе. ГЛАВА 27 Тени в зале шифровалки начали удлиняться и терять четкость. Автоматическое освещение постепенно становилось ярче.

Time Travel and Warp Drives: A Scientific Guide to Shortcuts through Time and Space
3 Response
  1. David S.

    Sci-fi makes it look so easy. Receive a distress call from Alpha Centauri? No problem: punch the warp drive and you're there in minutes. Facing a catastrophe​.

  2. Ingmar O.

    In Time Travel and Warp Drives, Allen Everett and Thomas A. Roman take readers on a clear, concise tour of our current understanding of the nature of time and.

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