Matter and Anti Matter: What is Time ?

Matter and Anti Matter: What is Time ?: "Have you ever wondered, why do you have to move into the future? Why tomorrow will be different from today? Why I am not allowed to go pas..."

What is Time ?

Have you ever wondered, why do you have to move into the future? Why tomorrow will be different from today? Why I am not allowed to go past or standing still?  Why there is difference between past and future?

I want to know what happen when time passes. What does ‘at the moment mean’? How we define time line of our life? I wanted to understand what makes time Tick? Time is no where state forward as you might think.  

The arrow of Time is very tall order. The greatest mind of Science was straggled to understand and explain Time. Event always happen in the same order. We never see time is reverse. The arrow of time always goes future. The minutes   passes, changes happens, that never undone.

To measure the time, we look at the Sun. But it’s not quite precise. The length of day actually varies all the time.  So, we cannot rely on that. If we want to know the what  time it is, then stars like Sun or anything on the sky is not very good source. We need to look at the smaller object like heart of the Atom.

 Inside the Atomic clock there is rear metal named caesium, the electron of caesium Atom makes a jump up, when that electron fall back down again it gives out lights. This light wave pick 9 billion times every second to make one Tick by atomic clock. This number never changes. The time we know, runs across the earth define by that Atomic clock. But this is not my finding what is time?

The time tick on our watch it is the time now, present time. But much what we believe in the present it drowns from the past, what we are feeling happing now, happen little while ago. Because, wave or light take time from distance to come to our eyes.  If we look at the Sun, it is 93 million mills away; Sun light takes 8.26 minutes to come to our eyes, so we are seeing the sun as it was 8 minutes in the past.  

100 years ago Einstein linked space and time together in a single object called ‘spacetime’. Spacetime is as like as fabric, where space & time waving together. As a result space & time mixed up. The outcome of this spacetime is profound.

 All we don’t experiencing the same time, my time is unique to me, as well as you time unique to you. Time is different for everyone. Everywhere in the universe the metronome (clock) tics in different rate. Two people will only ever agree the speed of time ticks, if they standing next to each other.

 If I travel pass to you increabeble first, I would see you time ticks much slower than mine. So, time is depending who is moving relative to whom. If I see someone is move in space relative to me, then I would see their time tick slower than mine. The strange nature of time does not end there, it’s not only how first we are move but , what we are next to also effects time. So you should see time ticks slower on my feet then top of my head. This because near you are the big object like earth, the more bent & warped space-time is, and the slower time ticks. (Irwin) Shapiro Time delay is the proof of the bent and warped space-time by the Sun. If we take time as a dimensions then our past and future is always existed. Future is already there. We are just travelling like we do travel in road. So, my birth,20^th  birthday, my graduations, my death all this events are exist somewhere in sapacetime. This idea does not sound right, in physic it not quit precise as well. In quantum physic it says ‘nothing is certain ’. Future is probability;. Our destiny is there but, we don’t know how and when we will go there, not predetermine. So, answer of the question what is time, depends what are you doing? There is no single answer what is time. Time is some things we celebrate special moment, like you can say ‘I had a great day yesterday; I am looking forward to tomorrow’.

The arrow of time profoundly defines by the second law of Thermodynamics. At its heart contain a new concept called ‘Entropy’. It explain why every things collapse in the universes. To understand how, then we need to think not a single object but things have been made of many constitutes parts. Like the individual grain that make up the pile of sands. Entropy is a measure that how many ways we can rearrange those grains but still keep the sand pile is same, trillions of ways we can do that. In the language of Entropy- without changing the structure many ways of rearranging sand grains is ‘High Entropy’. If we make a sand castle, there are very few ways we can rearrange those sand castle. If we do any things to it virtually it will remove the beautiful structure. Because of that it has ‘Low Entropy’. Now it obvious  what will happen if we leave this sand castle, wind will blow those sand from the castle and make it sand pile. In fundamental level nothing defines that, some send pile will blow by the wind and make it as like as sand castle, it is highly unlikely. More likely what happen, low entropy sand castle will take high entropy structure sand pile. So, Entropy always increases, why because, it’s over well mainly more likely that it will.

Entropy can explain why time runs only one direction, every thing in the universes tens to go from order to disorder, so there will be difference between past & future. It means there is direction in the passage of time. Form the journey of atomic clock to the sun we can actually say what time is it?
But, still very little know about what is time !