Dimension vs Spacetime - What's the difference?
dimension | spacetime |
A single aspect of a given thing.
A measure of spatial extent in a particular direction, such as height, width or breadth, or depth.
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A construct whereby objects or individuals can be distinguished.
(geometry) The number of independent coordinates needed to specify uniquely the location of a point in a space; also, any of such independent coordinates.
(linear algebra) The number of elements of any basis of a vector space.
(physics) One of the physical properties that are regarded as fundamental measures of a physical quantity, such as mass, length and time.
(computing) Any of the independent ranges of indices in a multidimensional array.
(science fiction, fantasy) An alternative universe or plane of existence.
(uncountable, physics) The four-dimensional continuum of the three spatial dimensions plus time.
(physics) An n''-dimensional continuum consisting of dimensions of both space & time. Normally spacetime is considered as having 4 dimensions (''x'', ''y'', ''z'', ''t ), but higher-dimensional spacetimes are often encountered in theoretical physics, e.g. the 5-dimensional spacetime of Kaluza-Klein theory or the 11 dimensions of spacetime in M-theory.
(relativity) A specific region of the universe with mathematically different properties than the surrounding spacetime. Synonymous with "metric" within the context of general relativity.
As nouns the difference between dimension and spacetime
is that dimension is a single aspect of a given thing while spacetime is (uncountable|physics) the four-dimensional continuum of the three spatial dimensions plus time.As a verb dimension
is to mark, cut or shape something to specified dimensions.dimension
English
(wikipedia dimension)Noun
(en noun)citation, passage=We live our lives in three dimensions for our threescore and ten allotted years. Yet every branch of contemporary science, from statistics to cosmology, alludes to processes that operate on scales outside of human experience: the millisecond and the nanometer, the eon and the light-year.}}
- The dimension of velocity is length divided by time.
Synonyms
* (single aspect of a thing ): aspect * (measure of spatial extent ): magnitude, proportion, size, scope * (construct whereby objects or individuals can be distinguished ): attribute, propertyDerived terms
* * * * correlation dimension * dimensional * dimensional analysis * dimensional shingle * exterior dimension * four-dimensional * fourth dimension * fractal dimension * Hamel dimension * Hausdorff dimension * information dimension * isoperimetric dimension * Kaplan-Yorke dimension * Krull dimension * Lebesgue covering dimension * Lyapunov dimension * multidimensional * one-dimensional * pointwise dimension * poset dimension * q-dimension * third dimension * three-dimensional * transdimensionalspacetime
English
(wikipedia spacetime)Noun
- An event is a point in spacetime , specified by the coordinates x,y,z and t.
- "a Schwarzschild spacetime," "a Reissner-Nordström spacetime," etc. as opposed to sense (2) describing the universe's spacetime as a whole: "a Minkowski spacetime," "a 5-dimensional spacetime," etc.