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Zobrazují se příspěvky se štítkemPhysics. Zobrazit všechny příspěvky

čtvrtek 25. prosince 2014

The Question ‘Why?’

Take any statement you want. As simple as "My name is Lukas." If we keep asking question ‘Why?’ and try to answer them, we will always get stuck at one point. And this point is similar for all the statements. I want to conclude and philosophically debate on three things I observed.

I am sitting in my balcony, drinking a cold beer and fresh wind is blowing into my face.

Why?

Germany had lost the WWII.

Why?

Firstly, I want to look at actions that happen in time; that create the history and the present. Of course there is a reason for me sitting here in the balcony or for Germany loosing the WWII. But there is not just one reason. Certainly, I am not sitting here at this certain moment just because I wanted enjoy my beer. The whole actions in my last hour led to this point where I decided to sit here. I could have watched a film or anything else… but I didn’t. And in fact it is not the last hour that led to the point of me sitting here – it is the whole history of time.

Germany lost the WWII because of all the actions of all the matter before the War. If these things would not have happen then maybe there would not be WWII at all – but we cannot thing like this, it is too vague and without proof. What we can say is that the history of matter, all the actions of molecules led to the point where Germany had lost the war. I don’t know what would have happened if a one man in Africa would waken up one day in 1929 an hour later, because it did not happen. All those speculative questions “What if?” do not make sense. Importantly, there is only one time line, one present, which is the result of all the history before us.

All the actions now are somehow united. There is reason for all of them. But the reason is not the everyday sense “reason” we would think of – like me having a cold beer because I was in the mood for it. But the reason as the system of all the molecules, atom, particles in the world resulting only one scenario that can happen.

Imagine there are two atoms. If we know their velocity vector, masses and all other physical attributes, can be surely say what will happen with them? I think we can (although I am not a physics expert and quantum theory would surely disapprove this) – but I am thinking of this the way as if we were the nature. Then we would know everything about them (because we as nature actually make them behave in a certain way) and we could say what will happen. Now expand this experiment that there are more atoms. A complete universe. Even then we can say: if we know everything about these atoms, we can deterministically say what will happen next. Therefore the future is predetermined. It is already predetermined from the past.

So all actions are predetermined and are united. They depend only upon one point. The point of creation. The inception. From that point on the future only expanded through the laws of nature, with which this world is created.

And this is the same point to which all the question ‘Why?’ are moving towards. The reason for anything is united with reason for all the matter in universe. Molecule next to me had reason to move this certain way partially because of different molecule moving in China, and the system of these molecules – the present moved this way because of the history, the past, which resulted these two molecules moving these two particular way. And by history I mean the point of creation. Everything is united from that point on and the point of creation is the only reason for everything, now, in the past and in the future. It is the answer to all of the ‘Why?’ questions.

This is what I call ‘God’. It is the reason for the world, nature and matter being the way they are. It is the begging, therefore the present and the future. It is the reason and explanation for everything there is and possibly can be. I think humans are not capable of understanding this. The ultimate reason, I think, is something that cannot be explained but still has a reason and explanation. Not understandable for us.

But what if there was no point of creation? How do I know the universe has finite history? Our mind is not capable of imagining something infinite. We cannot imagine the space being infinite, the time being infinite, we want to believe there are some boundaries.

As always, I got pretty far from the point I firstly intended to analyze. I finished my beer and I am heading towards sleep. Why won’t I finish the article and write all the things I wanted to write about? All the past actions of any matter and the natural system led to this point of me stopping right here.

Lukas Cerny, 25. 12. 2014


středa 10. prosince 2014

A World in a World

I am sitting in McDonald's and looking at people around me. I wonder, what are they thinking about? They are eating their Big Macs, listening to music, working. All of us think, or have the feeling, that this is the center of the world now. I am the most important thing. And yes it is true. And logical. Why would I, finishing my French Fries, we worrying about a Japanese person finishing his McChicken in McDonald's in Tokyo? I am right here, in Prague. This is what I am. Only few of other seven billion people matter to me.

I have a smile on my face. Not just because I finished McDonald's French fries, which I think are the best out of all fast foods, but because I realize how small my life is. What is a center of the world for me, one small table out of twenty in McDonald's, is not even a sand in the whole city. I try to zoom out and try to imagine what would Prague look like from the sky. I definitely could not find this specific McDonald's. I am nothing in my city. Just one little creature. I am nothing in the world. Just one little creature.

What are we in the universe? Absolutely nothing. What we think is the center any action, our problems that we deal every day with, are absolutely meaningless in the eyes of the whole universe. There are thousands and thousands of galaxies. One bigger than the other one, one smaller than the other one. Everything is so relative, when we think of things in different way. Everything so big is so small. Everything so small is so big.

Different planets are attracted to each other with the Newton's Universal Gravitational Law. Of course this equation does not explain what gravitation is, it only describes it. Describes what is observable.

This mind path took me to completely different topic, and I will come back to Newton. But I wonder, can we explain things? Can we have one hundred precent reason for something happening? I don't think so. Why do the lightbulbs shine? Of course physicist would say that because of current passing through it, creating sufficient resistance that transmits energy into heat and light. But why does it do this? Why does the world function the way it does? Why is there any world? Any matter? In any question we could keep on asking why, why, why and we would ultimately come to the conclusion that nothing is certain. Of course this comes to the question, can science reason everything? As recall somebody telling me - only atheists believe it can.

Now back to Newton. Newton described the effect of the gravitational field by the Gravitational Law.

Now let's look at the electric force between two charges.
This got me thinking. These two equation look almost identical. They are identical, with the only difference in substituting mass for charge and different constants. Equation for potential, potential energy, field strength are identical as well. 

I concluded two things from these amazing facts (I am taking IB Physics HL so I do not have the ability to go into too much depth in physics knowledge).

First, physics is absolutely beautiful. The world we are living in is somehow interconnected. There are some basic principles that function and that apply to big objects as well as small objects (of course I am not talking about Relativity or Quantum Mechanics). But it truly is somehow interconnected. Did somebody create this? Is there a Divine power, the Creator, that created this? Who created this? Is this just a coincidence? There are million questions striking me.

I little kid next to me is enjoying her ice-cream and explaining her mom why she got a bad grade.

Secondly, aren't atoms another worlds? If big objects such as planets, galaxies, indeed any matter at all is driven by the force that has the same properties as electric force between charges in little atoms, couldn't it be that there are worlds in worlds? That where we are living now, our space, is only an atom? Our space is only an atom in other world, which is again an atom in other world? Why not? Give me a proof that it is not this way?

Maybe one Big Mac has intoxicated me so much that my philosophical essay got too much away from where I started. But anyway.  Where I am sitting here right now, this McDonald is an atom in the universe. Even though it is center of the world for me, in our galaxy it is a piece of sand, an atom. Why couldn't the same way apply for an atom. Maybe atoms have do have a center of importance in them, but they are atoms in our world where they are not important at all, exactly the same way I, sitting in McDonalds, am not important for somebody right next door, or on the other side of the world. 

Lukas Cerny, 10.12.2014