Spacetime - Wikipedia
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 time into a single four-dimensional continuum. Spacetime diagrams are useful in visualizing and understanding relativistic effects, such as how different observers perceive where and when events ...
What is space-time? - Live Science
2021年5月20日 · Space-time is the conceptual model that best explains how the universe works. (Image credit: Shutterstock)
时空 - 维基百科，自由的百科全书
在物理学中，时空（英語： spacetime ）又稱時空連續體（ space-time continuum ）、时空连续统 [1] [2] ，是一数学模型，其将空间的三个维度和时间的一个维度合并成一个四维流形。
Space-time | Definition & Facts | Britannica
2025年1月18日 · The Nature - What is Spacetime? Indian Academy of Sciences - Space and Time: From Antiquity to Einstein and Beyond; Physics LibreTexts - Spacetime; Frontiers - Cognitive structures of Space-Time; Gravity Probe B - What is a space time continuum?
What Is Spacetime? - Scientific American
2018年6月1日 · When you throw a ball high into the air, it arcs back to the ground because Earth distorts the spacetime around it, so that the paths of the ball and the ground intersect again.
What Is Spacetime Really Made Of? - Scientific American
2022年2月1日 · Spacetime may emerge from a more fundamental reality. Figuring out how could unlock the most urgent goal in physics—a quantum theory of gravity
What Is Spacetime, Really? - Stephen Wolfram
2015年12月2日 · But then along came Einstein’s Special Theory of Relativity—and people started talking about “spacetime”, in which space and time are somehow facets of the same thing. It makes a lot of sense in the formalism of Special Relativity, in which, for example, traveling at a different velocity is like rotating in 4-dimensional spacetime.
Spacetime | Brilliant Math & Science Wiki
In physics, spacetime is any mathematical model that combines space and time into a single continuum. It is a mathematical concept used to refer to all points of space and time and their relation to each other.
1.2: Spacetime Geometry - Physics LibreTexts
If instead we have a spacetime with mass uniformly distributed throughout it, then the geometry would be different; i.e., one could no longer label every point in the spacetime with a value of \(t\) and of \(x\) such that Equation \ref{eqn:InvDistMinkowski} was true. One could however label the spacetime with \(t\) and \(x\) such that this is true:
GP-B — Einstein's Spacetime - Stanford University
Gravity feels strongest where spacetime is most curved, and it vanishes where spacetime is flat. This is the core of Einstein's theory of general relativity, which is often summed up in words as follows: "matter tells spacetime how to curve, and curved spacetime tells matter how to move" .