An interdimensional being (also extra-dimensional, intra-dimensional) suggests an entity that can "time-travel and move out of the physical body into a spiritual one". The

NASA The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeedi ...

website has a somewhat dated article called "The Science of ''

Star Trek ''Star Trek'' is an American science fiction media franchise created by Gene Roddenberry, which began with the eponymous 1960s television series and quickly became a worldwide pop-culture phenomenon. The franchise has expanded into vario ...

''", by physicist David Allen Batchelor (5 May 2009), which considers some of the implementations in ''Star Trek''. He says it's "the only science fiction series crafted with such respect for real science and intelligent writing", with some "imaginary science" mixed in; and considers it to be the "only science fiction series that many scientists watch regularly", like himself. He says it's "more faithful to science than any other science fiction series ever shown on television".

In movies and TV shows

* ''Akira'' *

Rick Sanchez Rick Sanchez is one of the two eponymous characters from the Adult Swim animated television series ''Rick and Morty'' and resulting franchise. Created by Justin Roiland and Dan Harmon and voiced by the former, Sanchez is a misanthropic alcoho ...

, main character of ''

Rick and Morty , creator = Justin Roiland and Dan Harmon , developer = , voices = {{plainlist, * Justin Roiland * Chris Parnell * Spencer Grammer * Sarah Chalke * Kari Wahlgren , composer = Ryan Elder , count ...

In literature

''The Time Machine'' (H. G. Wells)

The Time Machine ''The Time Machine'' is a science fiction novella by H. G. Wells, published in 1895. The work is generally credited with the popularization of the concept of time travel by using a vehicle or device to travel purposely and selectively fo ...

'' by

H. G. Wells Herbert George Wells"Wells, H. G."
Revised 18 May 2015. ''

time travel Time travel is the concept of movement between certain points in time, analogous to movement between different points in space by an object or a person, typically with the use of a hypothetical device known as a time machine. Time travel is a ...

ers as capable of interdimensional travel. The protagonist describes the passing of time, and also treats it as if it were a spatial dimension. This is exactly how H. G. Wells devises the time machine mechanism in this particular work of fiction. H. G. Wells supposes that if time could simply be treated as space, then time machines would indeed operate correctly. In this case, the H. G. Wells definition of a time traveler must be equivalent to that of an interdimensional being – an entity capable of traveling through unusual dimensional rifts that few other entities can enter. From H. G. Wells' work: "'Clearly,' the Time Traveller proceeded, 'any real body must have extension in four directions: it must have Length, Breadth, Thickness, and—Duration. But through a natural infirmity of the

flesh Flesh is any aggregation of soft tissues of an organism. Various multicellular organisms have soft tissues that may be called "flesh". In mammals, including humans, ''flesh'' encompasses muscles, fats and other loose connective tissues, but ...

, which I will explain to you in a moment, we incline to overlook this fact. There are really four dimensions, three which we call the three planes of Space, and a fourth, Time. There is, however, a tendency to draw an unreal distinction between the former three

dimensions In physics and mathematics, the dimension of a mathematical space (or object) is informally defined as the minimum number of coordinates needed to specify any point within it. Thus, a line has a dimension of one (1D) because only one coord ...

and the latter, because it happens that our

consciousness Consciousness, at its simplest, is sentience and awareness of internal and external existence. However, the lack of definitions has led to millennia of analyses, explanations and debates by philosophers, theologians, linguisticians, and scien ...

moves intermittently in one direction along the latter from the beginning to the end of our lives."

''The Hitchhiker's Guide to the Galaxy'' (Douglas Adams)

The Hitchhiker's Guide to the Galaxy ''The Hitchhiker's Guide to the Galaxy'' (sometimes referred to as ''HG2G'', ''HHGTTG'', ''H2G2'', or ''tHGttG'') is a comedy science fiction franchise created by Douglas Adams. Originally a 1978 radio comedy broadcast on BBC Radio 4, it ...

'' by

Douglas Adams Douglas Noel Adams (11 March 1952 – 11 May 2001) was an English author and screenwriter, best known for ''The Hitchhiker's Guide to the Galaxy''. Originally a 1978 BBC radio comedy, ''The Hitchhiker's Guide to the Galaxy'' developed into a " ...

describes that

mice A mouse ( : mice) is a small rodent. Characteristically, mice are known to have a pointed snout, small rounded ears, a body-length scaly tail, and a high breeding rate. The best known mouse species is the common house mouse (''Mus musculus' ...

are "merely the protrusion into our dimension of vast hyper-intelligent pan-dimensional beings". The protagonist

Arthur Dent Arthur Philip Dent is a fictional character and the hapless protagonist of the comic science fiction series ''The Hitchhiker's Guide to the Galaxy'' by Douglas Adams. In the radio, LP and television versions of the story, Arthur is played by ...

discovers that Earth "was commissioned, paid for, and run by mice" and that the mice were furious when it was destroyed.

''Flatland'' (Edwin Abbott Abbott)

Flatland ''Flatland: A Romance of Many Dimensions'' is a satirical novella by the English schoolmaster Edwin Abbott Abbott, first published in 1884 by Seeley & Co. of London. Written pseudonymously by "A Square", the book used the fictional two-dim ...

'' by

Edwin Abbott Abbott Edwin Abbott Abbott (20 December 1838 – 12 October 1926) was an English schoolmaster, theologian, and Anglican priest, best known as the author of the novella ''Flatland'' (1884). Biography Edwin Abbott Abbott was the eldest son of ...

describes the interactions of a

two-dimensional In mathematics, a plane is a Euclidean ( flat), two-dimensional surface that extends indefinitely. A plane is the two-dimensional analogue of a point (zero dimensions), a line (one dimension) and three-dimensional space. Planes can arise ...

square In Euclidean geometry, a square is a regular quadrilateral, which means that it has four equal sides and four equal angles (90-degree angles, π/2 radian angles, or right angles). It can also be defined as a rectangle with two equal-length a ...

with an interdimensional being from a coexisting

three-dimensional Three-dimensional space (also: 3D space, 3-space or, rarely, tri-dimensional space) is a geometric setting in which three values (called ''parameters'') are required to determine the position of an element (i.e., point). This is the informal ...

spacetime In physics, spacetime is a mathematical model that combines the three dimensions of space and one dimension of time into a single four-dimensional manifold. Spacetime diagrams can be used to visualize relativistic effects, such as why diffe ...

Fantasy

Universe dimensionality

An additional fictional work that does include universe dimensionality of some sort includes the '' Buffy the Vampire Slayer'' series, according to a particular academic source.

Others

Bill Cipher The Disney Channel television series ''Gravity Falls'' created by Alex Hirsch features an extensive cast of characters. All of the characters listed have appeared in the first and second seasons. Overview Main * Dipper Pines (voiced by ...

* It (Pennywise the Dancing Clown)

References

{{reflist, colwidth=30em

Additional sources used

Suppression and Transformation of the Maternal in Contemporary Women's Science Fiction

Portals in Science Fiction (Google Scholar)
Science fiction themes Fictional life forms Alleged UFO-related entities Marvel Comics dimensions Fictional dimensions Dimension

In movies and TV shows

In literature

''The Time Machine'' (H. G. Wells)

''The Hitchhiker's Guide to the Galaxy'' (Douglas Adams)

''Flatland'' (Edwin Abbott Abbott)

Fantasy

Universe dimensionality

Others

See also

References

Additional sources used