Scientists once thought that space and time were separate, and that the universe was merely an assortment of cosmic bodies arranged in three dimensions. Einstein, however, introduced the concept of time as the fourth dimension, which meant that space and time were inextricably linked.
There's no time without space
Additionally, according to Einstein's general theory of relativity, the gravity of a large object can impact how quickly time passes. Many experiments have been undertaken that have since proven this.
if we were to go into quantum physics - then time can be thought of as fourth dimension…. So time and motion are distinct things, but they are deeply dependent on each other - that's how universe works.
"There's really no sense of time." At the edge of the observable Universe, there's something else happening, according to Katie Mack, an astrophysicist at the Perimeter Institute for Theoretical Physics in Canada. The Universe is expanding from the Big Bang, and that expansion is stretching time too.
There are two ways that time, as a dimension, is different from space. The first way is a small one: you can't put space (which is a measurement of distance) and time (which is a measurement of, well, time) on the same footing without some way to convert one to the other.
Time arises from motion along fourth space dimension, and hence time is real, not an illusion.
Locations in space and time, hence, have no identity and can be said to exist only as mathematical conveniences. Quantum theory suggests that locality is an illusion, a byproduct of the decoherence that occurs between quantum waves so that nonlocal effects are damped while local effects are reinforced.
Time seems to follow a universal, ticktock rhythm. But it doesn't. In the Special Theory of Relativity, Einstein determined that time is relative—in other words, the rate at which time passes depends on your frame of reference.
One of the most influential physicists to have ever lived, Albert Einstein, shared this view, writing, "People like us who believe in physics know that the distinction between past, present, and future is only a stubbornly persistent illusion." In other words, time is an illusion.
As a universe, a vast collection of animate and inanimate objects, time is infinite. Even if there was a beginning, and there might be a big bang end, it won't really be an end. The energy left behind will become something else; the end will be a beginning.
The story is that 1 hour on that particular planet is equivalent to 7 years in space. Time dilation is real, but it's completely unrealistic that it would have an effect anywhere near that in any realistic scenario. In practice, it's a tiny fraction of a second, not many years.
A temporal dimension, or time dimension, is a dimension of time. Time is often referred to as the "fourth dimension" for this reason, but that is not to imply that it is a spatial dimension. A temporal dimension is one way to measure physical change.
Some theorists have even argued for more, up to an indefinite number of possible dimensions. Other physicists suggest that experimental results have thrown cold water on the case for higher dimensions, leaving us only with the familiar three dimensions of length, width and height, plus the dimension of time.
Movement of an object through spacetime, it tends to warp it's way around in the image above. It's for this reason that time is necessary to be contemplated, as well as why you can't have a dimension without time.
“Einstein mass–energy equivalence equation E=mc2 is wrong because does not contains Dark Matter”. Einstein in 1905 did not formulate exactly the equation E=mc2 but he said: 'if a body gives off the energy L in the form of radiation, its mass diminishes by L/c2'.
"We use Newtonian physics to describe how things move, and time is an essential element of this." To this day, classic Newtonian thought on time—where time is constant throughout the universe—is still a good approximation of how humans experience time in their daily lives.
The Paradox of Time: We are aware of the incredible value of our time but constantly take actions that are disrespectful of that value. We know how important our time is, yet we ignore its passage and engage in low value activities that pull us away from the things that really matter.
The paradox lies in the question Why is the traveling brother younger? Special relativity tells us that an observed clock, traveling at high speed past an observer, appears to run more slowly--that is, it experiences time dilation.
The concept of the multiverse stems from the big bang theory — Albert Einstein's once controversial, but now widely accepted, idea that the universe instantaneously expanded from a tiny point called a singularity.
The simplest answer is that time travel cannot be possible because if it was, we would already be doing it. One can argue that it is forbidden by the laws of physics, like the second law of thermodynamics or relativity. There are also technical challenges: it might be possible but would involve vast amounts of energy.
Hawking proposed a view of time that, like an everlasting tapestry, stretches from past to present to future, with a definite beginning at the big bang.
Time is a social construct that we build to plan and schedule our lives. Thus, we are bound to the constructs of the culture we are in. We must embrace the cultures thoroughly to understand who they are in their time and space.
Time is a prime conflict between relativity and quantum mechanics, measured and malleable in relativity while assumed as background (and not an observable) in quantum mechanics. To many physicists, while we experience time as psychologically real, time is not fundamentally real.
That, though, is how time works—and how it has always worked. Time as we think of it isn't innate to the natural world; it's a manmade construct intended to describe, monitor, and control industry and individual production.
From the viewpoint of an observer outside the black hole, time stops. For example, an object falling into the hole would appear frozen in time at the edge of the hole. Inside a black hole is where the real mystery lies. According to Einstein's theory, time and space, in a way, trade places inside the hole.