First, look at all paths in 4-D space-time between A and B, and find the space-time path that takes the shortest time to traverse. In normal space, the "shortest path" in 3-D space between two events A and B is found in the following way. 4.9 The Hitchhiker's Guide to the Galaxy. Interplanetary travel has already been developed, and in 2002, when US Robots demonstrates its first primitive positronic robot, it is intended to be used for mining operations on the planet Mercury. Although the timeline is not consistent, it appears to start with the development of a hyperdrive from a theoretical construct by The Brain, a positronic supercomputer built by US Robots. Hyperspace seems to enable teleportation on a pre-calculated route, the ends of which are in normal space. 4.2 The concept of traveling between stellar systems via the hyperspace drive or "jump" is described or mentioned in several of Isaac Asimov's short stories and novels written from the 1940s through to the 1990s.4 Popular depictions in science fiction.Hyperspace travel is nevertheless a fictional technology.Īuthors may develop alternative names for hyperspace in their works, such as the Immaterium (used in Warhammer 40 000), slip space in the Halo universe, Z space in Animorphs, or "Underspace", commonly referred to in the works of Neal Asher. Spacecraft able to use hyperspace for FTL travel are sometimes said to have a hyperdrive.ĭetailed descriptions of the mechanisms of hyperspace travel are often provided in stories using the plot device, sometimes incorporating some actual physics such as relativity or string theory in order to create the illusion of a seemingly plausible explanation. Hyperspace is sometimes used to enable and explain faster than light (FTL) travel in science fiction stories where FTL is necessary for interstellar travel or intergalactic travel. Travel in hyperspace is frequently depicted as faster-than-light travel in normal space. It is typically described as an alternate region of space co-existing with our own universe which may be entered using an energy field or other device. Hyperspace is a fictional plot device sometimes used in science fiction.
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