3. Cosmic Scale : The Maximum Size of the Cosmos
This model attempts to explain the expansion and contraction of the universe based on the concept of finite cosmic scale, and cosmic time of the universes. Let me elaborate on this view. As we discussed above, shrinking and expanding are the properties of spacetime itself. When matter comes closer to each other, the space also shrinks between them. As space shrinks, it exerts the repulsive force, which stretches the shrunk space. It suggests that the increasing distance between galaxies and clusters of galaxies depends on how much space had shrunk between any two points. This implies that the universe could be finite, because eventually repulsive force of shrink space would cease at a certain time, this also indicate that there must be the cosmic time, which would be the age of the universe.
As we know that Planck length is the smallest unit of length, and Planck time is the smallest unit of time in the universe. Here I introduce the largest scale, the Cosmic Scale and Cosmic Time. The cosmic scale is the maximum size of the universe, it is "large size" unit of length and a fundamental upper bound on lengths scales.
The cosmic time is the age of the universe, it is the time in which space expand to the cosmic scale and contract back into singularity.
Where,
Planck length
is the Cosmic increasing factor
We find,
radius of the Cosmic Scale r,
We find that the size of the entire universe d is
3.1. Cosmic Time: The Age of the Cosmos
The cosmic time is the age of the entire universe from the big bang to the big crunch.
where
Divide seconds into years we get,
1 year = 31557600 seconds
We find that the total age of the universe is 24.53 Trillion Years. It is the time in which space expand to the cosmic scale and contract back into singularity. Here is interesting thing is that the cosmic scale which D is = 24.53 Trillion Light Years and the cosmic time which is equal to 24.53 Trillion Years.
So here we rewrite the equation,
As we know that V = d/t , so we can say that V is speed of light, and d is the Cosmic Scale, t is the Cosmic Time.
We find that, light can travel at the constant speed to reach the maximum cosmic scale, in given cosmic time, it indicate us that the Cosmic time and the Cosmic Scale could be the constant in each cycle of expansion and contraction of the universe.
Astronomers would have needed to rethink many of their cherished ideas. But Hubble laws would fits well with what we know from other kinds of measurements. Hubble laws follow the expansion of the universe well. It was Edwin Hubble’s seminal 1929 PNAS paper, “A relation between distance and radial velocity among extra-galactic nebulae” [
7], that led to a turning point in our understanding of the universe. In his short paper, Hubble presented the observational evidence for one of science’s greatest discoveries—the expanding universe. Hubble showed that galaxies are receding away from us with a velocity that is proportional to their distance from us: more distant galaxies recede faster than nearby galaxies. Hubble’s classic graph of the observed velocity vs. Distance for nearby galaxies is presented in
Figure 1; this graph has become a scientific landmark that is regularly reproduced in astronomy textbooks. The graph reveals a linear relation between galaxy velocity (v) and its distance (d)
This relation is the well-known Hubble Law (and its graphic representation is the Hubble Diagram). It indicates a constant expansion of the cosmos where, like in an expanding raisin cake that swells in size, galaxies, like the raisins, recede from each other at a constant speed per unit distance; thus, more distant objects move faster than nearby ones. The slope of the relation, Ho, is the Hubble Constant; it represents the constant rate of cosmic expansion caused by the stretching of space-time itself.
The size of the entire universe is fixed, but it had shrunk. So the expansion of the universe actually is stretching of shrunk space, which leads to appearance of space! Cosmic scale is only shrunk in current size of the universe. The force of the shrunk space depends on how much space has shrunk, which essentially determines how the force of the shrunk space responds to the expansion of the universe. Eventually expansion of the universe would cease at the certain time. And gravitational force contracted the universe until all the space shrunk and matter re-collapsed to a final singularity, restarting the cycle. I don’t the the exact figure, how much time the universe would take to expanding, this would be the expansion time of the universe, and how much time it would take to contracting. But it is certain that the force of shrunk space expands the universe until all the shrunk space expands at a certain large cosmic scale. According to this model the expansion of the universe should speeding up over the time, because the decreasing repulsive force of shrunk space leads to stretching the shrunk space faster and faster, that is, although in general, decreasing of the repulsive force of shrunk space leads to accelerating the stretching of space. This is the big key to understanding the accelerated expansion of the universe. (I’ll explain it in the 3.3 section.
The two principal long-range forces, the gravitational force and the force generated by shrunk space, play an important role in the reformation of the universe. The force of shrinking space differs from gravity. Curved space exerts the inward pulling force, we call gravitational force, and shrunk space exerts the outward pushing force. The shrink space force is repulsive; it exerts a force opposite to that gravitational force, we can say antigravity. So gravity and antigravity are not forces at all; they are the influences of vacuum space. About 14 billion years ago, there was an infinite repulsive force in Shrunk space. We speculate that the infinite repulsive force in Shrunk space gave rise to the Big Bang and caused the rapid growth of space. That process would appear to have moved very rapidly in the early universe and was only readily observable by detectors of high-frequency gravitational waves such as the Li-Baker [
8,
9]. It then expanded and cooled, undergoing phase transitions to radiation, fundamental particles, and matter. Matter grew into galaxies and was further consolidated by gravity into superclusters. Thus, the Big Bang was not only an explosion of matter and radiation all over space, but it may just have been a silent burst of infinite force in infinite shrink space that caused the simultaneous appearance of space everywhere.
The universe may have had no beginning—the Big Bang may have been just a particular moment in the evolution of this always-existing, not a true beginning. This theory would enables us to describe a sequence of events from the Big Bang to the Big Crunch.
3.2. Accelerated Expansion of the Universe
Recent observations of supernovae reveal not only the universe’s expansion but also its accelerated expansion [
10], and so an enigmatic form of energy is responsible for explaining this phenomenon. In the standard Big Bang and inflationary models, the recently discovered dark energy and cosmic acceleration [
6,
11] are an unexpected surprise with no clear explanation, and it has presented a challenge to its theoretical understanding.
First, Einstein aimed to maintain a static model of the universe and adjusted his equation known as the cosmological constant. When observational evidence later revealed that the universe did in fact seem to be expanding but not static, Einstein withdrew that suggestion. However, closer analysis of the expansion of the universe during the late 1990 once again led astronomers to believe that a cosmological constant should indeed be included in Einstein’s equations. It is quite intriguing that his cosmological constant still exists in cosmology as a form of dark energy, or vacuum energy. However, dark energy is one of the most important mysteries in the modern cosmology.
According to this model, the universe should keep expansion until it reached its cosmic scale, so the expansion is the most fundamental part of the universe. The force of the shrunk space depends on how much space has shrunk, which essentially determines how the force of the shrunk space responds to the expansion of the universe. The decreasing repulsive force of shrunk space leads to stretching the shrunk space faster and faster, that is, although in general, decreasing of the repulsive force of shrunk space leads to accelerating the stretching of space. This is the big key to understanding the accelerated expansion of the universe. Because, the size of the universe is fixed, it only stretches and shrunk. So extra space is not creating due to the dark energy, but the shrunk space is stretching, which leads to the appearance of space, whereby the scale of space changes.
The overall scenario of this model and its implications explain the expansion of space and its accelerated expansion. At the very beginning, there was an infinite shrunk space. This infinite shrunk space produced the infinite repulsive force in the singularity, which force gave rise to the Big Bang, and shrunk space began to stretch very rapidly. Since the beginning of the universe, shrunk space has continued to expanding, but in the distant past, the density of the universe should have been greater, so the universe must have been expanding more slowly than it is today. As the density of the universe decreases, the repulsive force of shrunk space decreases. The force of gravity is directly proportional to the repulsive force of shrunk space, and inversely proportional to the universe’s expansion. The universe will not continue to expand forever; there is no need, however, for dark energy. The universe does not expand “into” anything and does not require space to exist “outside” it. Eventually, after some Billion years, the universe reached its maximum cosmic scale, and all the shrunk space stretched, the expansion stalled. After that, gravitational force contracted the universe until all the space shrank and matter re-collapsed to a final singularity.
This model not only explains the way phenomena occur but also provides a clear worldview on the expanding space concept. The expansion of the universe is not a consequence of the space itself expanding; rather, it is caused by the stretching of shrunk space. This explanation of the universe’s expansion is straightforward and it drive us to deeper understand the universe.