What is an example of space-time?

For example, if one observer sees two events occur at the same place, but at different times, a person moving with respect to the first observer will see the two events occurring at different places, because (from their point of view) they are stationary, and the position of the event is receding or approaching.

How do you explain space-time?

Space-time is a mathematical model that joins space and time into a single idea called a continuum. This four-dimensional continuum is known as Minkowski space. Combining these two ideas helped cosmology to understand how the universe works on the big level (e.g. galaxies) and small level (e.g. atoms).

Is space-time possible?

Time travel to the past is theoretically possible in certain general relativity spacetime geometries that permit traveling faster than the speed of light, such as cosmic strings, traversable wormholes, and Alcubierre drives.

What is space-time made of?

There is no “fabric” to it. Spacetime isn’t “made of” any material or substance, i.e. it is an immaterial, insubstantial thing. Adding words like “fabric” to it does not convey any information, and only creates more confusion. You do not see the phrase “fabric of spacetime” in any physics publication.

Why is it called space-time?

This new reality was that space and time, as physical constructs, have to be combined into a new mathematical/physical entity called ‘space-time’, because the equations of relativity show that both the space and time coordinates of any event must get mixed together by the mathematics, in order to accurately describe …

What is time in space called?

The space-time he described is still known as Minkowski space-time and serves as the backdrop of calculations in both relativity and quantum-field theory. The latter describes the dynamics of subatomic particles as fields, according to astrophysicist and science writer Ethan Siegel.

Why is time in space different?

We all measure our experience in space-time differently. That’s because space-time isn’t flat — it’s curved, and it can be warped by matter and energy. Public Domain The phenomenon is called “gravitational time dilation.” In a nutshell it just means time moves slower as gravity increases.

How is space and time related?

Einstein, however, introduced the concept of a fourth dimension — time — that meant that space and time were inextricably linked. The general theory of relativity suggests that space-time expands and contracts depending on the momentum and mass of nearby matter.

Why is space-time important?

According to the best of current physical theories, space-time explains the unusual relativistic effects that arise from traveling near the speed of light as well as the motion of massive objects in the universe.

Why is space-time different?

We all measure our experience in space-time differently. That’s because space-time isn’t flat — it’s curved, and it can be warped by matter and energy. So depending on our position and speed, time can appear to move faster or slower to us relative to others in a different part of space-time.

What is the space-time interval?

(Click for a larger version) The path taken by an object in both space and time is known as the space-time interval. (Source: Wikibooks: http://en.wikibooks.org/wiki/. Special_Relativity/Spacetime)

What is the relationship between space and time?

Space-Time. Another corollary of special relativity is that, in effect, one person’s interval of space is another person’s interval of both time and space, and one person’s interval of time is also another person’s interval of both space and time. Thus, space and time are effectively interchangeable, and fundamentally the same thing…

Does time slow down as you travel through space?

Well, according to this theory, the faster you travel, the slower you experience time. Scientists have done some experiments to show that this is true. For example, there was an experiment that used two clocks set to the exact same time. One clock stayed on Earth, while the other flew in an airplane (going in the same direction Earth rotates).

Who coined the term space-time?

Einstein ’s former mathematics professor, Hermann Minkowski, was perhaps the first to note this effect (and perhaps understood it even better than Einstein himself), and it was he who coined the phrase “ space-time ” to describe the interchangeability of the four dimensions.