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Related to space-time: space-time continuum



space-time continuum

(General Physics) physics the four-dimensional continuum having three spatial coordinates and one time coordinate that together completely specify the location of a particle or an event


1. Also called space′-time′ contin`uum. the four-dimensional continuum, having three coordinates of space and one coordinate of time, in which all physical quantities may be located.
2. the physical reality within this four-dimensional continuum.


The four dimensions in which all objects are located and all events occur, viewed as a single and continuous framework for existence. Space-time consists of length, width, and depth, plus the dimension of time. See more at relativity.
Did You Know? Before Albert Einstein's theory of relativity, people thought they lived in a three-dimensional world. Time was considered to be a completely separate entity. But Einstein realized that a more correct view put time and the three space dimensions on equal footing. Physicists call the four-dimensional construct within which they interpret nature space-time. In space-time two events that appear to happen at the exact same time to one person in one place can appear to happen at different times to someone else in a different place. In other words, whether or not the events occur at the same time depends on the position and movement of the observers. How is this possible? Think of thunder and lightning. Lightning reaches the eye at the speed of light, while thunder reaches the ear at the much slower speed of sound. To an observer right where lightning hits, the thunder seems to come at the same moment. Several miles away, however, the lightning appears well before the thunder is heard. Similarly, if one observer were moving faster than the other toward or away from the lightning strike, each observer would experience the events at different time intervals. As Einstein figured it, everything in space-time is relative.
ThesaurusAntonymsRelated WordsSynonymsLegend: - the four-dimensional coordinate system (3 dimensions of space and 1 of time) in which physical events are locatedspace-time - the four-dimensional coordinate system (3 dimensions of space and 1 of time) in which physical events are located
coordinate system, frame of reference, reference frame, reference system - a system that uses coordinates to establish position
References in periodicals archive ?
Only many years latter we understood that the string description of the flux naturally lives in an higher dimensional space-time.
com)-- Excelsior Publishing is proud to sponsor Leonard Seet on his blog tour for the novel Meditation on Space-Time (236 pp.
Their data also represent the first images of gravitational waves, or ripples in space-time.
In " SR Equations without Constant One-Way Speed of Light", the space-time distortion equations for both GR and STR can be derived without paradoxical Relativity postulates.
The central tenant of general relativity is that gravity is a pseudo-force due to the curvature of space-time.
of Civil Aviation, Russia) discusses the scope of classical relativity and beyond, phase space-time as a model of physical reality, and optic-metrical parametric resonance--to the testing of the anisotropic geometrodynamics.
MARYLAND (CyHAN)- Einstein predicted gravity waves in his general theory of relativity, but to date these ripples in the fabric of space-time have never been observed.
The idea of creating a crystal with dimensions higher than that of conventional 3D crystals is an important conceptual breakthrough in physics, and it is very exciting for us to be the first to devise a way to realize a space-time crystal," Berkeley Lab physicist Tongcang Li, a member of the research group, said according to Live Science.
When I was in college 70-odd years ago, space-time and the fourth dimension were all the rage.
2) In case the experiment is repeatable or if neutrinos are travelling exactly at the speed of light, the simplest explanation would be that four-dimensional space-time of a vacuum is not purely a geometrical grid as assumed by Einstein, but a peculiar kind of energetic storage medium that just was not captured with classical physics, so far.
First predicted by Einstein, the waves are thought to be ripples in space-time caused by cosmic events such as the merging of two galaxies.
Another approach means the solving of the PDE's simultaneously in the space-time domain.

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