Time Zones differ.Let us leave the explanation or justification for the change in Time zones. The fact is, one in a particular Time zone can only visualize or imagine the reality of the other T Timezone , nothing more. From the individual standpoint, the time zone in which he is placed is the Reality and the other time zones are not experienced by him directly at the given point of Time. We go with the statement of others that other time zones exist because people who live in the other zones vouch for it. But we do not perceive it by ourselves.
From the explanation of Big Bang theory, we know the universe was formed at the time of Big Bang and started moving forward or started evolving.
What of the moment just before Big Bang? Stephen Hawkins states that it is irrelevant as it has no bearing on our Time frame. (Brief History of Time).
Is it logical to say that when we can not comprehend or explain concept, the concept is irrelevant?
What if it has a frame of reference of time than the one understood by us?
We can see clearly that we link Time with Motion. Displacement is observed due to change in Time Frame.
Time is understood by displacement. It means that we perceive Time because of a displacement of object, be it the universe or the hands of a clock. This Circular Reasoning is a logical fallacy. (As we say commonly. egg came from the Hen and Hen came from the egg.
We can not arrive at a conclusion).
To quote another famous example;
if we travel in a train traveling at a particular speed and observe a train moving at the same speed in the same direction, you will observe that you are stationary as the other train.
But you will have covered some distance. In this case motion seems to be at rest while space has been observed. By this example we can say space may exist independently of Time.
But when we follow the concept of Big bang, time is intricately connected with Space and in fact is concomitant with Time.
Another example from Xeno’s Paradoxes:
1. Let us keep the distance from Bangalore to Chennai at 300 miles (for calculation purposes.)
If we travel at the rate of 300 miles per hour, we will reach Chennai in an hour; at 600 miles per hour, 30 minutes; at 1200 miles per hour in 15 minutes; at 2400 miles per hour, in 7.5 minutes; at 3600 miles per hour, in 3.75 minutes, at 7200 miles, in 1.8 minutes; at 14400 miles, in .9 minutes. At this rate, we would have reached Chennai before we left Bangalore!
2. Let an object X travel between A and B.X has to cover half the distance of AB before reaching B, we may call this as C;
X before reaching C, should cover half the distance of AC, say D; to reach D, X has to cover half the distance of AD, say E.
We know that Space is infinitely divisible.
That means X will be traveling infinitely, that is, motion is impossible.
When we speak of Pole star being 400 light years away, we can only say that it existed 400 years ago, because the light left Pole star 400 years ago! We can not say it is there now because we see in the sky today.
The long and short of it is that defining Time is very difficult and is in fact impossible.
Latest findings on Black hole suggest that if you go through a black hole, time runs backwards. If by chance, we were to be in Black hole, will we perceive our present universe as flowing forwards in Time?
““In our everyday lives we have the sense that time flows inexorably from the past into the future; water flows downhill; mountains erode; we are born, grow old, and die; we anticipate the future but remember the past,” the scientists write in a recent study in Physical Review Letters. “Yet almost all of the fundamental theories of physics – classical mechanics, electrodynamics, quantum mechanics, general relativity, and so on – are symmetric with respect to time reversal. “The only fundamental theory that picks out a preferred direction of time is the second law of thermodynamics, which asserts that the entropy of the Universe increases as time flows toward the future. This provides an orientation, or arrow of time, and it is generally believed that all other time asymmetries, such as our sense that future and past are different, are a direct consequence of this thermodynamic arrow.” In their study, Feng and Crooks have developed a method to accurately measure “time asymmetry” (which refers to our intuitive concept of time, that the past differs from the future, in contrast with time symmetry, where there is no distinction between past and future). They began by investigating the increase in energy dissipation, or entropy, in various arrangements. The scientists’ method of measuring time asymmetry is best explained in the context of an experiment. In the macroscopic world, where glasses of milk are spilled, time asymmetry is obvious. But on the microscopic scale, because the amount of energy involved is so small, it’s more difficult to tell that entropy is increasing, and that time is moving forward and not backward. In fact, during some intervals, entropy might actually decrease. So even though overall entropy is still increasing on average, in accordance with the second law, the direction of time is not obvious at every moment in the experiment. Further, the scientists show that even an average entropy increase does not necessarily ensure time asymmetry, but can arise in an arrangement that appears time-symmetric.”
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