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Mathematical model combining space and time
In physics, spacetime, also called the space-time continuum, is a mathematical model that fuses the three dimensions of space and the one dimension of
Spacetime
Mathematical description of spacetime used in relativity
In physics, Minkowski spacetime (or Minkowski space; /mɪŋˈkɔːfski, -ˈkɒf-/) is the main mathematical description of spacetime in the absence of gravitation
Minkowski_spacetime
Hypothetical topological feature of spacetime
connects disparate points in spacetime. It can be visualized as a tunnel with two ends at separate points in spacetime (i.e., different locations, different
Wormhole
Mathematical theory of the geometry of space and time
In physics, curved spacetime is the mathematical model in which, with Einstein's theory of general relativity, gravity naturally arises, as opposed to
Curved_spacetime
Topics referred to by the same term
Look up spacetime in Wiktionary, the free dictionary. Spacetime is a mathematical model in mathematics and physics. Spacetime, space-time, space time
Spacetime_(disambiguation)
Graph of space and time in special relativity
A spacetime diagram is a graphical illustration of locations in space at various times, especially in the special theory of relativity. Spacetime diagrams
Spacetime_diagram
Condition in which spacetime itself breaks down
singularity, spacetime singularity, or simply singularity, is a theoretical condition in which gravity is predicted to be so intense that spacetime itself would
Gravitational_singularity
Theory of interwoven space and time by Albert Einstein
gravitational effects as the geometric curvature of spacetime. Special relativity is restricted to the flat spacetime known as Minkowski space. As long as the universe
Special_relativity
Type of symmetry in physics
Spacetime symmetries are features of spacetime that can be described as exhibiting some form of symmetry. The role of symmetry in physics is important
Spacetime_symmetries
Description of gravity using discrete values
gravity as curvature of spacetime: in the slogan of John Archibald Wheeler, "Spacetime tells matter how to move; matter tells spacetime how to curve." On the
Quantum_gravity
Compact astronomical body
of general relativity, which describes gravitation as the curvature of spacetime, predicts that any sufficiently compact mass will form a black hole. The
Black_hole
Theory of gravitation as curved spacetime
property of space and time, or four-dimensional spacetime. In particular, the curvature of spacetime is directly related to the energy, momentum, and
General_relativity
Concept in theoretical mathematical physics
mathematical physics, the concept of quantum spacetime is a generalization of the usual concept of spacetime in which some variables that ordinarily commute
Quantum_spacetime
Framework of superstring theory
consequence of the geometry of spacetime. In spite of the fact that the universe is well described by four-dimensional spacetime, there are several reasons
M-theory
Fluctuation of spacetime on very small scales
Quantum foam (also known as spacetime foam, or spacetime bubble) is a theoretical quantum fluctuation of spacetime on very small scales due to quantum
Quantum_foam
Two interrelated physics theories by Albert Einstein
primarily by Isaac Newton. It introduced concepts including 4-dimensional spacetime as a unified entity of space and time, relativity of simultaneity, kinematic
Theory_of_relativity
2014 American science documentary television series presented by Neil deGrasse Tyson
Cosmos: A Spacetime Odyssey is a 2014 American science documentary television series. The show is a follow-up to the 1980 television series Cosmos: A
Cosmos:_A_Spacetime_Odyssey
Spacetime manifold
global hyperbolicity is a certain condition on the causal structure of a spacetime manifold (that is, a Lorentzian manifold). It is called hyperbolic in
Globally_hyperbolic_spacetime
universe spacetime Alcubierre spacetime Ellis wormhole spacetime Gödel spacetime Taub–NUT spacetime Kasner spacetime Mixmaster spacetime Vaidya spacetime
List_of_spacetimes
Topological structure of 4D spacetime
Spacetime topology is the topological structure of spacetime, a topic studied primarily in general relativity. This physical theory models gravitation
Spacetime_topology
Field-equations in general relativity
related the local spacetime curvature (expressed by the Einstein tensor) with the local energy, momentum and stress within that spacetime (expressed by the
Einstein_field_equations
Hypothetical FTL transportation by warping space
metric. Objects cannot accelerate to the speed of light within normal spacetime; instead, the Alcubierre drive shifts space around an object so that the
Alcubierre_drive
Semantic spacetime is a conceptual framework for agent-based modelling of spacetime, based on Promise Theory. Initially described as a model of computer
Semantic_spacetime
Exact solution for the Einstein field equations
The Kerr metric or Kerr geometry describes the geometry of empty spacetime around a rotating uncharged axially symmetric black hole with a quasispherical
Kerr_metric
Graduate physics textbook by Sean M. Carroll
Spacetime and Geometry: An Introduction to General Relativity is a textbook written by physicist Sean Michael Carroll for beginning graduate students
Spacetime_and_Geometry
Set of spacetime events, light-connected to a given event
moment in time — and traveling in all directions, would take through spacetime. If one imagines the light confined to a two-dimensional plane, the light
Light_cone
Theory of subatomic structure
relativity, a theory that explains the force of gravity and the structure of spacetime at the macro-level. The other is quantum mechanics, a completely different
String_theory
Hypothetical object of spacetime
In general relativity, a white hole is a hypothetical region of spacetime and singularity that cannot be entered from the outside, although energy, matter
White_hole
Diagram of different points in spacetime
different points in spacetime through a conformal treatment of infinity. It is an extension (suitable for the curved spacetimes of e.g. general relativity)
Penrose_diagram
Solution of Einstein field equations
density of the dust grains, but this spacetime is an important pedagogical example. Like any other Lorentzian spacetime, the Gödel solution represents the
Gödel_metric
World line of a particle in spacetime which returns to its starting point
(CTC) is a world line in a Lorentzian manifold, of a material particle in spacetime, that is "closed", returning to its starting point. This possibility was
Closed_timelike_curve
Path of an object through spacetime
worldline) of an object is the path that an object traces in 4-dimensional spacetime. It is an important concept of modern physics, and particularly theoretical
World_line
Attraction of masses and energy
of the curvature of spacetime, caused by the uneven distribution of mass. The most extreme example of this curvature of spacetime is a black hole, from
Gravity
Propagation of information or matter faster than the speed of light
slower-than-light (subluminal) speed with respect to the locally distorted spacetime region. Speculative faster-than-light concepts include the Alcubierre
Faster-than-light
Maximally symmetric Lorentzian manifold with a negative cosmological constant
considers the geometry of a unified spacetime instead of considering space and time separately. The cases of spacetime of constant curvature are de Sitter
Anti-de_Sitter_space
Extension of quantum field theory to curved spacetime
field theory in curved spacetime (QFTCS) is an extension of quantum field theory from Minkowski spacetime to a general curved spacetime. This theory uses a
Quantum field theory in curved spacetime
Quantum_field_theory_in_curved_spacetime
Hypothetical travel into the past or future
it, such as a rotating black hole. Traveling to an arbitrary point in spacetime has very limited support in theoretical physics, and is usually connected
Time_travel
Region in spacetime from which nothing can escape
In astrophysics, an event horizon is a boundary in spacetime beyond which no signal can ever reach a given observer. Wolfgang Rindler coined the term
Event_horizon
Boundary region of asymptotically flat spacetimes in general relativity
region at the boundary of asymptotically flat spacetimes. In general relativity, straight paths in spacetime, called geodesics, may be space-like, time-like
Null_infinity
Lorentzian manifold where curvature vanishes at large distances
An asymptotically flat spacetime is a Lorentzian manifold in which, roughly speaking, the curvature vanishes at large distances from some region, so that
Asymptotically_flat_spacetime
Generalization of the Dirac equation
equation in curved spacetime is a generalization of the Dirac equation from flat spacetime (Minkowski space) to curved spacetime, a general Lorentzian
Dirac equation in curved spacetime
Dirac_equation_in_curved_spacetime
2015 video game
Lovers in a Dangerous Spacetime is a space shooter video game developed by Asteroid Base for Microsoft Windows, OS X, PlayStation 4, Linux, Xbox One,
Lovers in a Dangerous Spacetime
Lovers_in_a_Dangerous_Spacetime
Spacetime with complexified coordinates
Complex spacetime is a mathematical framework that combines the concepts of complex numbers and spacetime in physics. In this framework, the usual real-valued
Complex_spacetime
Games development studio
Spacetime Studios (STS) is a games development studio, based in Austin, Texas. Founded in 2005 by a small group of PC MMO game developers. The start-up
Spacetime_Studios
In physics, a non-relativistic spacetime is any mathematical model that fuses n–dimensional space and m–dimensional time into a single continuum other
Non-relativistic_spacetime
British science fiction television series (2006–2011)
episodes "Boom Town" and "Utopia" to refuel, and is the location of the spacetime rift first seen in "The Unquiet Dead". The Cardiff Rift becomes "the first
Torchwood
Concept in general relativity
In general relativity, the pp-wave spacetimes, or pp-waves for short, are an important family of exact solutions of Einstein's field equation. The term
Pp-wave_spacetime
Expression in the theory of relativity
Lorentz scalar in Minkowski spacetime is the spacetime distance ("length" of their difference) of two fixed events in spacetime. While the "position"-4-vectors
Lorentz_scalar
Geometric space with five dimensions
such a space extends the familiar three spatial dimensions plus time (4D spacetime) by introducing an additional degree of freedom, which is often used to
Five-dimensional_space
Approach to quantum gravity using discrete spacetime
that spacetime is fundamentally discrete (a collection of discrete spacetime points, called the elements of the causal set) and that spacetime events
Causal_sets
Lorentzian manifold
In mathematical physics, Kundt spacetimes are Lorentzian manifolds admitting a geodesic null congruence with vanishing optical scalars (expansion, twist
Kundt_spacetime
Spacetime that does not change over time and is irrotational
relativity, a spacetime is said to be static if it does not change over time and is also irrotational. It is a special case of a stationary spacetime, which
Static_spacetime
Theoretical framework in physics
changes in the spacetime metric. QFTs in curved spacetime generally change according to the geometry (local structure) of the spacetime background, while
Quantum_field_theory
Equations describing classical electromagnetism
mechanics, or for use in quantum mechanics. The covariant formulation (on spacetime rather than space and time separately) makes the compatibility of Maxwell's
Maxwell's_equations
Geometric system used in black hole physics
In physics, spherically symmetric spacetimes are commonly used to obtain analytic and numerical solutions to Einstein's field equations in the presence
Spherically symmetric spacetime
Spherically_symmetric_spacetime
theories to break down under extreme conditions, such as within known spacetime gravitational singularities like those at the Big Bang and at the centers
List of unsolved problems in physics
List_of_unsolved_problems_in_physics
Framework of distances and directions
with time, to be part of a boundless four-dimensional continuum known as spacetime. The concept of space is considered to be of fundamental importance to
Space
Everything in space and time
in time, but in the combined setting of spacetime. The special theory of relativity describes a flat spacetime. Its successor, the general theory of relativity
Universe
Property of a mathematical space
found necessary to describe electromagnetism. The four dimensions (4D) of spacetime consist of events that are not absolutely defined spatially and temporally
Dimension
1981 novel by Rudy Rucker
Spacetime Donuts is a novel by Rudy Rucker published in 1981. Spacetime Donuts is a novel in which the universe consists of a single particle which is
Spacetime_Donuts
Idea in quantum gravity
Induced gravity (or emergent gravity) is an idea in quantum gravity that spacetime curvature and its dynamics emerge as a mean field approximation of underlying
Induced_gravity
gravitation are tensor fields defined on a Lorentzian manifold representing spacetime. This article is a general description of the mathematics of general relativity
Mathematics of general relativity
Mathematics_of_general_relativity
Abstract coordinate system
expansion like a Fourier series. In a physical problem, they could be spacetime coordinates or normal mode amplitudes. In a robot design, they could be
Frame_of_reference
Tabletop science fiction role-playing game
SpaceTime is a role-playing game published by Blacksburg Tactical Research Center in 1988. SpaceTime is a cyberpunk system, fully compatible with Timelords
SpaceTime
Facet of general relativity
behavior of spacetime. Well-defined notions of total mass exist in important classes of spacetimes, such as asymptotically flat spacetimes and asymptotically
Mass_in_general_relativity
Setting of relativistic physics in geometric algebra
physics, spacetime algebra (STA) is the application of Clifford algebra Cl1,3(R), or equivalently the geometric algebra G(M4) of physics. Spacetime algebra
Spacetime_algebra
Linear perturbations to solutions of nonlinear Einstein field equations
perturbation theory to the metric tensor that describes the geometry of spacetime. As a consequence, linearized gravity is an effective method for modeling
Linearized_gravity
Geometrical construct in general relativity
construct used in general relativity and its generalizations to delineate spacetime boundaries without reference to the dynamic Einstein field equations.
Killing_horizon
Aspect of relativity in physics
Gravitational waves are waves of spacetime curvature that propagate at the speed of light and are produced by the relative motion of gravitating masses
Gravitational_wave
Spacetime that admits a Killing vector that is asymptotically timelike
equations, a spacetime is said to be stationary if it admits a Killing vector that is asymptotically timelike. In a stationary spacetime, the metric tensor
Stationary_spacetime
Relativistic quantum mechanical wave equation
obstruction towards gauging. The spacetime symmetries of the Dirac action correspond to the Poincaré group, a combination of spacetime translations and the Lorentz
Dirac_equation
Hypothetical approach to quantum gravity with emergent spacetime
spacetime fabric itself evolves. There is evidence that, at large scales, CDT approximates the familiar 4-dimensional spacetime but shows spacetime to
Causal dynamical triangulation
Causal_dynamical_triangulation
Type of relativistic spacetime
A Malament–Hogarth (M-H) spacetime, named after David B. Malament and Mark Hogarth, is a relativistic spacetime that possesses the following property:
Malament–Hogarth_spacetime
General-relativistic effect
flat spacetime. A common equation used to determine gravitational time dilation is derived from the Schwarzschild metric, which describes spacetime in the
Gravitational_time_dilation
Family of linear transformations
six-parameter family of linear transformations from a coordinate frame in spacetime to another frame that moves at a constant velocity relative to the former
Lorentz_transformation
Thought experiment in special relativity
non-inertial observer. In both views there is no symmetry between the spacetime paths of the twins. Therefore, the twin paradox is not actually a paradox
Twin_paradox
Duality between theories of gravity on anti-de Sitter space and conformal field theories
that spacetime is four-dimensional. One peculiar feature of string theory and M-theory is that these theories require extra dimensions of spacetime for
AdS/CFT_correspondence
postulate by deduction. Others differ in their approach to the geometry of spacetime and the linear transformations between frames of reference. As formulated
Formulations of special relativity
Formulations_of_special_relativity
Vector in relativity
reference frame). Four-vectors describe, for instance, position xμ in spacetime modeled as Minkowski space, a particle's four-momentum pμ, the amplitude
Four-vector
Concept that simultaneity depends on choice of reference frame
simultaneous hyperplane. In 1987, Robert Goldblatt published Orthogonality and Spacetime Geometry, directly addressing the structure Minkowski had put in place
Relativity_of_simultaneity
Tensor that describes the 4D geometry of spacetime
study. The metric captures all the geometric and causal structure of spacetime, being used to define notions such as time, distance, volume, curvature
Metric tensor (general relativity)
Metric_tensor_(general_relativity)
Tool from special relativity
hyperbolic acceleration of a uniformly accelerating reference frame in flat spacetime. In relativistic physics the coordinates of a hyperbolically accelerated
Rindler_coordinates
3D web browser
SpaceTime (also known as SpaceTime3D) was a 3D graphical user interface that displayed web pages in a 3d tabbed stack. When using search engines such
SpaceTime_(software)
Theory of gravity by Albert Einstein
observed gravitational effect between masses results from their warping of spacetime. By the beginning of the 20th century, Newton's law of universal gravitation
Introduction to general relativity
Introduction_to_general_relativity
Form of spatially correllated light with unusual optical properties
A spacetime wave packet is a spatial-temporal light structure with a one-to-one correlation between spatial and temporal frequencies. In particular, their
Spacetime_wave_packets
Mathematical instability in string theory
nothing is a physical instability that is found in higher-dimensional spacetime models. It was first described by Edward Witten in 1982, as a consequence
Bubble_of_nothing
Causal relationships between points in a manifold
(causality conditions). In modern physics (especially general relativity) spacetime is represented by a Lorentzian manifold. The causal relations between
Causal_structure
Generalization of straight line to a curved space time
relativity, a geodesic generalizes the notion of a "straight line" to curved spacetime. Importantly, the world line of a particle free from all external, non-gravitational
Geodesics in general relativity
Geodesics_in_general_relativity
Unified field theory
of a fifth dimension of space beyond the conventional four-dimensional spacetime of general relativity. According to this proposal, there are three dimensions
Kaluza–Klein_theory
Null hypersurface in general relativity
curvature singularity at the Cauchy horizon. However, since the region of spacetime inside the Cauchy horizon has closed timelike curves, it is subject to
Cauchy_horizon
Differentiable manifold with nondegenerate metric tensor
general relativity is a four-dimensional Lorentzian manifold for modeling spacetime, where tangent vectors can be classified as timelike, null, and spacelike
Pseudo-Riemannian_manifold
Tensor describing energy momentum density in spacetime
describes the density and flux of energy and momentum at each point in spacetime, generalizing the stress tensor of Newtonian physics. It is an attribute
Stress–energy_tensor
German-born theoretical physicist (1879–1955)
proverbial among physicists summarizes the theory: "Spacetime tells matter how to move; matter tells spacetime how to curve." The Einstein field equations cover
Albert_Einstein
2012 web series
Can Also Travel Through Time (UWSAASTWCATTT), also known as Inspector Spacetime, is an American adventure-sci-fi web series created by Travis Richey,
Untitled Web Series About a Space Traveler Who Can Also Travel Through Time
Untitled_Web_Series_About_a_Space_Traveler_Who_Can_Also_Travel_Through_Time
Classical statement of gravity as force
of curved spacetime instead of being due to a force propagated between bodies. In Einstein's theory, energy and momentum distort spacetime in their vicinity
Newton's law of universal gravitation
Newton's_law_of_universal_gravitation
Class of solutions to Einstein's equation in general relativity
Conformastatic spacetimes refer to a special class of static solutions to Einstein's equation in general relativity. The line element for the conformastatic
Conformastatic_spacetimes
Situation or occurrence located at a specific point in space and time
event is anything that happens that has a specific time and place in spacetime. For example, a glass breaking on the floor is an event; it occurs at
Event_(relativity)
Physical quantities taking values at each point in space and time
formulated in terms of two interacting vector fields at each point in spacetime, or as a single rank-2 tensor field. In the modern framework of the quantum
Field_(physics)
Non-profit distributor of educational video content
PBS Digital Studios is a non-profit organization through which PBS distributes original educational web video content. Based in Arlington, Virginia, it
PBS_Digital_Studios
2019 book by Sean M. Carroll
Something Deeply Hidden: Quantum Worlds and the Emergence of Spacetime is a non-fiction book by American theoretical physicist Sean M. Carroll. The book
Something_Deeply_Hidden
SPACETIME
SPACETIME
SPACETIME
SPACETIME
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Oriya, Telugu
Unfading; Ever-bright
Boy/Male
Hindu
One wearing yellow robes
Girl/Female
Latin
Full of sorrows.
Boy/Male
Norse
Son of Helga.
Boy/Male
Hindu
Lord Krishna
Boy/Male
Tamil
Remover of obstacles
Girl/Female
Indian, Telugu
Beautiful Lady
Surname or Lastname
English
English : habitational name from a place so called in Lancashire (now part of Greater Manchester), named in Old English with ramm ‘ram’ (or possibly hramsa ‘wild garlic’) + bothm ‘valley bottom’.
Boy/Male
Hindu
Priest name, Merciful
Surname or Lastname
English
English : variant of Freer.
SPACETIME
SPACETIME
SPACETIME
SPACETIME
SPACETIME