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What Exactly Is time ?

What Exactly Is time ?

What exactly is the time? Time is the most unknown of all unknown things. This is what we are thinking all the time. It seems obviously the ticking of the clock, the turning of the pages of a calendar. Time presents to us in many different ways. We can measure the time, we keep the time and we do all our activities within the time but sometime we procrastinate doing something. Putting off to do something is keeping time for next time. Our daily lives are completely wrapped around the time.

For thousands of years, many scientist and philosophers have struggles a lot to understand the phenomenon of time. Time is a way to label and order events in the universe. it’s a way to measure the distance between two events also time is a medium we move through that allows us to see that change has actually happened. Its gives the concept of past and future. This is really important because, it’s the only one that requires us to have an arrow of time, a direction it moves in and never changes. the future cannot come before the present.
The reason many things seem strange when you play them backwards is because of entropy.

Entropy is the second law of thermodynamics and of all the rules of physics, it’s probably the one we are surest about. To put it simply entropy is the measure of the order or disorder of a system. The law states that the entropy is close system will either remain constant or increase with time. This means that you always go from ordered to disordered.
In other word entropy is a measure of the “disorder” of a system. What “disorder refers to is really the number of different microscopic states a system can be in, given that the system has a particular fixed composition, volume, energy, pressure, and temperature. By “microscopic states”, we mean the exact states of all the molecules making up the system.

Entropy = (Boltzmann’s constant k) x logarithm of number of possible states
= k log(N).

Entropy is how we know that time is destined to move in one direction.
Time is not moving at the same rate for everyone and everything. its relatives to the speed you are moving and by gravity. The faster you are moving, the slower you experience time compared to someone who is not moving. This is part of Einstein’s theory of relativity. you can see relativity in action every day.
Einstein introduced the concept of slowing of time with motion and in gravity. Einstein also showed that large masses curve space and there is increase in mass with acceleration by application of a force. These discoveries of Einstein provide the necessary clues to solving the riddle of time.
The stronger the gravity the slower time passes. so if you were stood on a planet with several hundred times the mass of earth for just one hour, a whole year will have passes back here on earth.
Traveling to the future is clearly possible, all you need to do is keep traveling close to the speed of light and life on earth will race by much quicker than your personal experience of time. traveling close to light speed is no easy task though, it would require absolutely enormous amount of energy.
Traveling to past is a little trickier and we’d almost certainly need some sort of wormhole to achieve it. but it’s at least theoretically possible, having a wormhole to the past would not defy the law of physics, even if it does lead to the potential for paradoxes.
Time is the indefinite continued progress of existence and events that occur in apparently irreversible succession from the past through the present to the future.Physicists confirm that time moves forward even in the quantum world.
In the dimension of space, you can move forwards and backwards. But time is different, it has a direction, you always move forward, never in reverse. So why is the dimension of time irreversible? This is one of the major unsolved problems in physics.

About The Author

Parash Raj Gautam

Parash Raj Gautam is a writer in nihosi.com. He enjoys writing and spends time daily writing blog, programming and graphic designing. In his free time, reading, watching movies, listening music, hiking and travel are Mr. Gautam’s pastimes. In the year ahead Mr. Gautam looks forward to reading many books, and developing his own interest and skill at writing.

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