Understanding Newton's Third Law

Though everyone learned Newton’s Third Law in elementary school level, I had seen many of the people doing this mistake while understanding it. I am not an exception at my school level.
The mistake is this,
If I ask a school student to identify all the action and reaction pairs in the photo of an apple that is on a table,

The student will immediately give the answer as only one pair and that is ,
Action: Earth pulls apple with the Gravitational force acting downwards direction [direction towards the earth].
Reaction: Table pushes apple with the Normal reaction acting upwards that is opposite to the direction towards the earth.
The student forgets to realize the fact, since his mind is fully concentrated only on the word Opposite.
But here is what you have to note or surprise about the ingeniousness of Newton. He didn’t had done the mistake as same as the student did.
Before proposing the Third law, Newton cleverly thought about another experiment that is a falling apple towards the earth. It is the perfect example where one can really understand the Newton’s Third Law.

While considering the case of a falling apple and trying to identify the action and the reaction pairs,

Some of the photos of falling apple are as follows,

From his gravitational law, he was known that some force of attraction is there between an apple and the Earth.
Mostly in our first thought we will only realize the Action,
Action: Earth pulls Apple with gravitational force acting downwards that is to the Centre of Mass of the Earth.
But the amazing fact lies there in its pair,
From the relative frame of reference and from the gravitational law, it should be there the reaction as,
Reaction: Apple pulls Earth with same gravitational force acting upward toward the Centre of mass of Apple.  
Note:  It needn’t be earth pulls apple should be action or Apple pulls Earth should be action. Either one of the force can be action or reaction since action, reaction happens simultaneously.
Note: Both these force pairs are same in magnitude. The forces are same but not the acceleration. Acceleration of Earth is so minute and the acceleration of Apple is so high that is 9.8 m/s^2 near to the ground.

On hearing this first time, I take time to believe this fact in my childhood. I thought, How can this small apple pull The Whole Earth upwards? It looked crazy to me.
But then I realized the fact. Since the Mass of the Earth is too large the acceleration of the Earth is so minute so that it couldn’t be seen with our eyes. Nevertheless it is a wonderful and amazing fact that everyone should know.
These kind of mistakes are often in our everyday lives. Thank God for the sake of Newton never did the Same mistake.
The real action, reaction pairs are explained by Newton as follows, 
For every force there is an equivalent and opposite force acting on the opposite direction of the force. You cannot say which force is action and which is reaction. Action and reaction happens at same time. The forces are same in magnitude and Opposite in direction.
Moreover everyone need to note this special point that is,
Note: The action and reaction pair should always be the Same Kind of Force.
That is for an action of gravitational force the reaction force cannot be the Normal force or any other force. It should be also the same Gravitational force.
And that is the note where most of the Students are getting wrong. Do this mistake as I did in your school age because when you did find the real answer you will be amazed like me.
Why I am explaining this mistake is because it is the first thing that made me very much interested in Physics. From this, I started to see the Physics as a Magical one that explains all the Magic in this great enormous Universe.

Answer to the first question (If you need):

Contradiction of Symmetry - 2

Thinking about the Symmetry Contradiction, I understood that the initial conditions are not the same since the inputs smell, sound, visuals are different and they affect the chemical process in our mind and so they will behave like different chemical process.

That is the 5 senses makes us to think different.

Though then, I thought again the same experiment in empty space, where there is no sound, smell, taste (chemical effects), touching (external effect on our skin), and light (being the empty space). Now will they think the exactly in a same way?

I think they will not, because if they think exactly in a same way, then each of the person (experiment) should walk or do the same. That is, if the first person took his left leg forwards to walk, then the it implies that the second person should also take his left leg to walk [being the same chemical reaction in both the Space due to Symmetry Principle].

But will they take the same left leg ?

I don't think it is a must for both of them to start walking by their same left leg, though they think the same in their minds. They can choose left or right leg. They can also choose to stay in the same place instead of walking. So what happens to Symmetry?

We should consider not only thinking process, but both mental and physical process. Physical process also should be the same for both of the person, if Symmetry works in Nature.

I think the reason is something due to Space. Space has something to do with the Symmetries in Nature. But somehow it is not affecting the usual chemical process we are encountering in our everyday lives. The space interacts with the symmetry in Nature. We should work further in this Contradiction to get the idea of what is happening here.

May be the solution for this Contradiction will give us the answer to the formation of life in humans. Moreover it gives more insight to soul or what is meant by spirituality in humans. It will lead to some great conclusion. We should give some importance in a mathematical way to this Contradiction to get the solution.

Power Macintosh 9500/150

           I have an apple computer that is aged more than 15 years. This model is released by May 1 , 1995. It is Power Macintosh 9500/150.
Today I just opened it to look the components and structure of that computer. 
          This Macintosh Computer is quite different from the modern computers. I just took some photos of that computer. Since I am just starting to know about the history and the evolution of computers, this is the first old computer I investigated though I have modern windows computers. 
          Some of the photos of Power Macintosh 9500/150,                                      

                                       Front view

Side views

Peripheral Component Interconnect Card

(PCI Card)

Pascaline - Pascal's Calculator

The evolution of Computers starts with the inventions of Mechanical Calculators and Electronic Calculators. Only from the Inventions of Mechanical and Electronic Calculators, we came to know that Mechanics, and Electronics can also be used to do calculation works other than muscle works done by humans. 

            These Calculators are the basic and fundamental seed for our modern computers. In that way first we need to know about some basic 

          The pascaline works on the basis of gear mechanism. Only Natural numbers are used in pascaline. Only Addition, Subtraction could be done using this calculator.   
         It is the first idea that is based on a mechanical calculation.
A rotating wheel with 10 spokes is attached with a continuous of wheels. It is arranged in such a way that when a wheel rotates one full rotation, a spoke in the neighbourhood that is left to the corresponding wheel will turn up to one spoke.

To do addition, we will just put the desired value by rotating the wheel spokes to desired values. The 10 spokes in a wheel serves as the 10 digits in number system. The number of wheels represents the number of decimal places in a number. 

The wheel can be rotated only in one direction. There will be two lines to represent the initial values of decimal values that is value 1, 2. So that we can understand how to rotate the wheel to get other values. Mostly the wheels are used to rotate clock wise direction. 


I think this link will help you more to understand about Pascaline,

http://www.youtube.com/watch?v=3h71HAJWnVU

Contradiction of Symmetry

When I was thinking about the symmetry in nature, I ended with a contradiction.

First of all what I meant by symmetry is the symmetry in nature. It is that if you do an experiment at your house and if you do the same experiment at your school with same initial conditions, then it will give you the same result.  The experiment can be either physics or chemistry.

For example, if you throw a ball with an initial velocity with some initial conditions it will attain some final velocity. With same initial conditions if you throw the same ball with same initial velocity, from the equations of motion the ball will attain the same final velocity. No matter whether this experiment is done at India or U.S.A or China or Russia, the experiment will give same result. The rule is just the initial conditions should be kept the same.

            Similar kind of example can be given in chemistry.

A chemical process at certain temperature, pressure and other state variables at some value will give same result if the experiment is done with same initial conditions anywhere in the Universe.

Simply it can be said that,

          
          Any process with same initial conditions will give same result independent of place or time. That is any process is symmetrical about space and time.

This symmetry is the base of our entire Science knowledge. If the universe doesn’t follow this symmetry principle, our world would be a big confusion.

The symmetry principle just states that,

         “The Universe that is the Nature follows some specific rules”.

          And Physics is nothing but the study of these rules of the Universe.

But there is contradiction, when you apply this theory in Biology. As per the Science of Biology, human body can be considered as the combination of DNA, RNA and other things. Basically speaking,

Human body is simply the different combination of molecules in Nature. The whole body can be divided into molecules and atoms.

If it could be considered that human body can be created from these tiny molecules, which is like a building created by stones, bricks, rods, cement then the whole of the human body could be built just with molecules.

Let us say it was found a machine to make desired molecules with atoms and that machine can build any structure of any set of molecules in Nature [like building things in Lego game - shown below]. Then it is possible to build human body as a building construction from top to bottom or centre part to side parts. And also let us say all these things are done with same initial conditions as it were build inside a woman’s womb.

Thus let us assume that we able to build two humans with all molecules and atoms at same positions.

Why I need to build these two because clones also may have small differences in their structure. Though DNA, RNA and other things be the same, it would not be exact same. Some small molecules may be in different positions.

But here it was assumed that the two humans build with this machine are exactly the same. That is like an exact printed copy.  

I called the two humans as two experiments. Since both humans are exactly the same, both are same experiments with same initial conditions.

Now I put these two experiments [two humans] at different places of the world.

[Notice that the initial conditions are exactly the same as they were the exact clones and it is fair to say the two humans as experiment because they are nothing but just the mixture of chemical compounds of tiny molecules. Both have same Genes and everything the same.]

Since their initial conditions are all same, they should think exactly the same. But it will not happen at all.

If the first one [first experiment] was put in a market full of crowds, he will start to think about that crowds and may fear about the people and will think who they are.

[These two are like newly born children. They don’t have anything stored in their mind. Their minds are purely fresh and non-polluted.]

And if the second one [second experiment] was put in a room with no people, he will start to think about that whole place and will start to fear where he is. He will be somewhat amused and feared.

This is the contradiction I end up with.

Both are the exactly the same experiment with same initial conditions but had been put on different places in space and time. They didn’t think exactly in a same way. The outside world affected the symmetry principle.
This may happen if they two were brought up in empty space also. 

Somewhat it makes me confusing.

And this is what I want to finally convey,

Whether Symmetry really exists in nature?  
Please give your opinions about this contradiction. 

Stage of Death

I read this story in a book ,

Once there is a man who is crying for the death of his beloved one.

A saint showed up there on his way back to his place. He saw the man crying in his house thinking about the dead past.

            The saint went to him and asked about the reason. And the saint looked through the house and took an old photo of that man taken in his childhood.

            He did see it for a while and asked the man,

“ Where is this young man now?”

The man replied, “ It is me”

The saint asked again the same question, “Where is this young man now?”

The man get confused and replied, “ It is me. I am here. ”

The saint asked exactly the same question again for the third time. This time the man get fully confused and stood silent.

Now the saint advised him saying,

“ Oh child! The young man here at this photo is dead by now. When you grow up that is when you reached a new stage, the past stage of your life becomes dead.

In the same way, from death your beloved one reached a new stage of the life.

From death everyone attains a new stage of our life.

So don’t be worried about death. It is not the end of our life.”

From this story, I really amazed at the words of that saint. It is really true that when we attain a new stage of our life, our past stage gets dead.

Simple but meaningful words

Give a little time to those words.

Small to Big

In these days I have been thinking about the difference between the quantum and classical mechanics. Why these two things need completely different type of thinking?

How does the Universe know to act different in different situations. Same universe in microscope world acts completely different from macroscopic world.
 How it can be possible to the Nature to realize that it is at microscopic level.  
 It is like Nature has a brain or a machine that behaves with some rules. 
Simply if you think nature as a human, then he acts as  person - 1 when he is in macroscopic world and he acts as person -2 in microscopic world. 
Doesn't it look weird about the nature?

If it is so, maybe then we don't know whether Nature behaves as same in the entire universe. 
Maybe in ultra macroscopic level that is at a size of universe, Nature may behave as completely different from the world we are known. It may act as person - 3. 

These things made me confuse about physics whether we are dealing with the real physics of Nature.

Two types of notions arise in my mind.

One is that whether the Nature behaves as same in everywhere around us and whether our theories are somewhat not eligible to explain it.

Second is if Nature behaves different at different levels then maybe it will act completely different in everywhere. And if it is true that it acts as different at different places then 


Why should an atom of hydrogen or any other element that is anywhere in this universe should behave exactly as same as an atom of hydrogen or any other element that is here at Earth. What is the reason for these Symmetrical things in Nature.