mhat do you mean by space time?

Answer 1

watch this link down below it is about black holes but it explains in the middles how they are intertwined and what effects black hole have on them

Answer 2

In physics, spacetime is a mathematical model that combines space and time into a single construct called the space-time continuum. Spacetime is usually interpreted with space being three-dimensional and time playing the role of the fourth dimension. According to Euclidean space perception, our universe has three dimensions of space, and one dimension of time. By combining space and time into a single manifold, physicists have significantly simplified a good deal of physical theory, as well as described in a more uniform way the workings of the universe at both the supergalactic and subatomic levels.

In classical mechanics, the use of spacetime over Euclidean space is optional, as time is independent of mechanical motion in three dimensions. In relativistic contexts, however, time cannot be separated from the three dimensions of space as it depends on an object's velocity relative to the speed of light.

The term spacetime has taken on a generalized meaning with the advent of higher-dimensional theories. How many dimensions are needed to describe the universe is still an open question. Speculative theories such as string theory predict 10 or 26 dimensions (With M-theory predicting 11 dimensions, 10 spatial and 1 temporal), but the existence of more than four dimensions would only appear to make a difference at the subatomic level
:P

Answer 3

A very simple definition: space and time considered together as one entity.

When most people think of dimensions, they only think in terms of spacial dimensions (up-down, right-left, forward-backward). These are the dimensions through which we have a certain limited amount of control over our movement. However, there is another dimension through which we have no control of our movement, time. Excluding relativistic effects, time just keeps moving forward. We can't slow, stop, or reverse it, but it is something with which we must deal. Whenever we describe an object's place in the universe, there is a time factor involved as well as a spacial location.

For example, if I give some one my address, that assumes that I am living at that address right now. It's not the same address at which I was living just a year ago. So, space and time are both parts of our universe. However, since most people tend not to think about time in this context, the term space-time was coined as a means of emphasizing times importance.

Answer 4

In physics, spacetime is a mathematical model that combines space and time into a single construct called the space-time continuum. Spacetime is usually interpreted with space being three-dimensional and time playing the role of the fourth dimension.

Answer 5

Spacetime is where events are located, or, depending on your theory of spacetime, it's all possible events. Spacetime is a multi-dimensional space, one of whose dimensions is time. It is often useful to suppose that there are four dimensions of spacetime. These four include the time dimension of before-after and the three ordinary space dimensions of, say, up-down, left-right, and forward-backward.

Answer 6

Obviously not as Amazing said. Space time is measured in light years.

Distance in km / time taken to reach there * speed of light

Answer 7

it is the time we spend in pressing space bar on te keyboard.