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Time portal. Time portals are doorways in time, employed in various fiction genres, especially science fiction and fantasy, to transport characters to the past or future . They differ from time machines in being a permanent or semi-permanent fixture linking specific points in time, and thus are an especially useful plot device when the plot ...
Time travel in fiction. Time travel is a common theme in fiction, mainly since the late 19th century, and has been depicted in a variety of media, such as literature, television, film, and advertisements. [ 1][ 2] The concept of time travel by mechanical means was popularized in H. G. Wells ' 1895 story, The Time Machine. [ 3][ 4] In general ...
A warp drive or a drive enabling space warp is a fictional superluminal (faster than the speed of light) spacecraft propulsion system in many science fiction works, most notably Star Trek, [ 1] and a subject of ongoing physics research. The general concept of "warp drive" was introduced by John W. Campbell in his 1957 novel Islands of Space and ...
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Fast travel. Fast travel or teleportation is a video game mechanic used in open world games that allows a player character to instantaneously travel between previously discovered locations (teleport waypoints or fast-travel points) without having to traverse that distance in real time. It is a type of warp that is specifically used to traverse ...
Faster-than-light ( superluminal or supercausal) travel and communication are the conjectural propagation of matter or information faster than the speed of light ( c ). The special theory of relativity implies that only particles with zero rest mass (i.e., photons) may travel at the speed of light, and that nothing may travel faster.
In the FOX/Sci-Fi series Sliders, a method is found to create a wormhole that allows travel not between distant points but between different parallel universes; [122] [123] objects or people that travel through the wormhole begin and end in the same location geographically (e.g. if one leaves San Francisco, one will arrive in an alternate San ...
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 .