Saturday 28 March 2015

UPANISHADS.

The book Upanishads by Swami Prabhavananda published by the Ramakrishna Math, Madras in 1979 was purchased and read by me sometime in 1982 or 1983, and I retain it even now. It is very concise and gives a layman an idea of the Upanishads. I had a lofty idea about what the Upanishads say before I read the book, but after reading it, I was brought down to earth and the following is the noting I made on the inside of the first page on the book. 

“Great indeed are my expectations when I started reading this book. Everyone spoke so eloquently about Hindu philosophy which comes mostly from the Upanishads. After reading only a quarter of this I feel greatly disillusioned, for I never knew it could be so hollow. The authors of the Upanishads seem to have taken it for granted that living on the earth is a great pain. I do not know what made them think so; perhaps it was because of the circumstances prevailing in their ages. They were not able to adjust themselves properly in their environment so they ran away from it and started fantasizing that they will attain some immortal bliss after death by renouncing themselves in that fashion. They believed in afterlife and they are so scared of it that they do not want to be born again. I pity these poor creatures who never understood the sweetness of life. True these struggles and pains in life we have to undergo, but without these life becomes lack luster. 

Again, if we take it in another way the Upanishads stress that the cause and causation is Brahman himself.  So, whatever we do is pre ordained by Brahman, then where does the question of sin arise?  We are doing only what the Brahman wants us to do. The Upanishads say that one is born again because of his ignorance and the sin committed by him. If we take the above case into consideration, the Upanishads become Self contradictory. 

The greatest virtue in life is not the contemplation of Brahman or afterlife but the satisfaction before you die that you have lived your life happily and bequeathed the same happiness to your posterity in which you become immortal.”

Now I thought that I should make an even smaller gist of the Upanishads than Swami Prabhavananda and am doing so with the help of his book.  

Specifically two terms have to be clarified before I embark on this venture. These are terms that are the fulcrums on which the Hindu philosophy revolves.
1.   
   BRAHMAN: This is the Universal Self that pervades all over the Universe. There is nothing that is not Brahman. Brahman can be described as not this not this and never in the affirmative because it is beyond all senses. The moment one starts describing Brahman, the evolute is Eeshwara or the individual God.
2.     
    ATMAN or the SELF: This is the ego or the individuality of the person. The Atman is a part and parcel of Brahman and is therefore one with Brahman. But due to avidya (wrong knowledge) it considers itself to be separate from Brahman. When this avidya is removed the Self or Atman again becomes one with Brahman it always is.     
How many Upanishads were originally there were unknown but 108 Upanishads have been preserved. The 10 Upanishads on which Sankaracharya has commented are the Principal Upanishads. That is the same thought is echoed in the other Upanishads as well. The 10 Principal Upanishads are;

  1.     ISHA
  2.     KENA
  3.     KATHA
  4.     PRASNA
  5.     MUDAKA
  6.     MANDUKYA
  7.     AITAREYA
  8.     TAITTIRIYA
  9.     CHANDOGYA
 10.   BRIHADARANYAKA.

Now I am giving below a gist of each Upanishad.

1.     ISHAVYASOPANISHAD.
Life in the world and life in the spirit are not incompatible.

Work or action is not contrary to knowledge of God, but indeed, if performed without attachment, is a means to it.

Renunciation is the renunciation of the ego, of selfishness and not of life.

The end, both of work and renunciation, is to know the Self within and Brahman without, and to realize their identity.

The Self is Brahman and Brahman is all.

Explanation: Everyday life in the world and spiritual life are not incompatible   

2.     KENOPANISHAD.
The power behind every activity of nature and of man is the power of Brahman. To realize this truth is to be immortal.

3.     KATHOPANISHAD.
The secret of immortality is to be found in purification of the heart, in meditation, in realization of the identity of Self within and Brahman without. Immortality is simply union with God. 
4.     PRASNOPANISHAD.
Man is composed of such elements as vital breath, deeds, thought, and the senses. All of them deriving their being form the Self. They have come out of the Self, and in the Self they ultimately disappear—even as the waters of a river disappear in the sea. 

5.     MUNDAKOPANISHAD.
Since the manifold objects of sense are merely emanations of Brahman, to know them in themselves is not enough.

Since all the actions of men are but phases of the universal process of creation, action alone is not enough.

The sage must distinguish between knowledge and wisdom.

Knowledge is of things, acts and relations. But wisdom is of Brahman alone; and beyond all things, acts and relations, he abides forever.

To become one with him is the only wisdom.

6.     MANDUKYAUPANISHAD.
The life of man is divided between working, dreaming, and dreamless sleep.

But transcending these three states is super consciousness vision-called simply the Fourth.

7.     AITAREYOPANISHAD.
Brahman, source, sustenance, and end of the universe, partakes of every phase of existence.

He wakes with the waking man, dreams with the dreamer, and sleeps the deep sleep of the dreamless sleeper;

But he transcends these three states to become himself. His true nature is pure consciousness.  

8.     TAITTIRIYAUPANISHAD.
Man, in his ignorance, identifies himself with the material sheathes that encompasses his true Self.

Transcending these, he becomes one with Brahman, who is pure bliss.

9.     CHANDOGYOPANISHAD.
Brahman is all. From Brahman come appearances, sensations, desires, deeds.

But all these are merely name and form. To know Brahman one must experience the identity between him and the Self, or Brahman dwelling within the lotus of the heart.

Only by so doing can man escape from sorrow and death, and become one with the subtle essence beyond all knowledge.

              10.   BRIHADARANYAKOPANISHAD.
The Self is the dearest of all things, and only through the Self is anything else dear.

The Self is the origin of all finite happiness, but it is itself pure bliss, transcending definition.


It remains unaffected by deeds, good or bad. It is beyond feeling and beyond knowledge, but it is not beyond the meditation of the sage.  

Thursday 19 March 2015

WHY DO OUR IIT'S NOT FIGURE IN THE TOP 200 UNIVERSITIES OF THE WORLD?

Our IIT’s are considered to be the premier institutions and are of high standing in our country. Surprisingly they do not figure in the lists of top Universities in the world. Of course all those rankings are done mostly by American corporations and they have to be examined a little more before we accept their results.   

There are many US world University rankings but QS is more popular. Let us see what they take into consideration while ranking the Universities.

1.      Academic Reputation.  40%
2.      Employer Reputation.  10%
3.      Faculty StudentRatio. 20%
4.      International Faculty  5%       
5.      International Students 5%
6.      Citations per faculty 20%

Now Academic reputation is something very subjective. If people and professors from the US or Europe are questioned they would not even be aware of our IIT’s and therefore the institutions would score very low on this account. Only when the sample size is picked up from all the countries of the world, the awareness is normalized. It is interesting to see the breakup of the QS sample size-  countrywise to establish its credibility. Moreover, Universities like the Oxford and Cambridge have been around for hundreds of years and are well known. Reputation should be given weightage but a weightage of 40% is much too high.

International faculty is given a weightage of 5% in the rankings. I fail to understand as to in what way International faculty helps academics. Similarly I do not understand why International students should be given 5% weightage. Our IIT’s would score a ‘0” on these parameters.  

About the faculty student ratio I have seen a writeup by IIT, Mumbai students comparing the ratio given by QS with the actual and they found no correlation at all and the QS giving a much lower ratio than the actual.   

It is the citations per faculty where the top Universities are definitely above our IIT’s, but what is the reason for this? Certainly not lack talent or lack of proper guidance. It is money that makes the difference. Universities charge very high fees from the students in the US which helps them fund the research programs. Also massive state funding of Universities for research is done in the US. For example 60% of the University Research is funded by the Federal Government in the US. With our scant allocation to R&D, our Governments can ill afford to do that and citations need money.

We need not feel bad about our IIT’s not being ranked in the top 200 Universities of the world. Despite no ranking their students are very much sought after by all American as well as European Corporations and this alone is sufficient for us to consider them as one of the best in the world irrespective of world rankings. 

At the same time one has to admit that there is no foolproof methodology for ranking the World Universities and any other means can also be similarly challenged. One method for the rankings may be as good as another.  

I am giving below a link to the QS ranking of World Universities.



http://www.topuniversities.com/university-rankings/world-university-rankings/2014#sorting=rank+region=+country=+faculty=+stars=false+search=

Wednesday 18 March 2015

THEORY OF RELATIVITY IN SIMPLE TERMS-III

Similarly there is no absolute time and even that is relative. What is time? It is durationbetween 2 events. If there are no events, then there is no time either.

What is a day? It is the time; the earth takes to rotate once. Similarly, a year is the time in which the earth revolves around the sun. If there is no earth, then this time is not there either. 

What happens to time when we leave the earth? Different planets have different rotation times and different revolution times. Therefore, their days and years are very different from ours. If we move further into space into stars and galaxies, then time becomes much more confusing.

Suppose an event takes place in the US, then we can tell exactly when that event would take place as per our time in the country. But as we travel into interplanetary space, the word simultaneity loses its meaning.

For example the star Sirius is 8.5 light years away from us. So, the light that we see today emanated from Sirius 8.5 years ago. Sirius is one of the nearest stars to us. If we move further there are many galaxies which are even billions of light years away.

This means we are now seeing that galaxy as it was billions of years ago. Whether today that galaxy exists or not would be known to us billions of years later. This means we are virtually seeing through time.  Looking to this Einstein postulated that even simultaneity is relative.

For this Einstein gives an analogy. Imagine that a person is standing near a railway track and a train is passing through. Suddenly the sky became cloudy and two bolts of lightning fell simultaneously. One in front of the train at a place called “A” and another at the back of the train at a place called “B”. Another person “C” is located exactly in between “A” and “B”. As he had two mirrors in his hands he could see both the bolts of lightning simultaneously and concluded that they have fallen simultaneously.

Another person “D” is traveling on top of the train exactly in front of “C”. He too had two mirrors in his hands and he too is watching the two bolts of lightning. “D” sees things differently. As the train is traveling from “A” to “B”, it would appear to “D” that the first bolt in the front has fallen first as the speed of the train is added. Similarly, the second bolt in the back appears delayed as the train moves away from it. To “D” it is the speed of train that determines the duration between the two lightning bolts. So, the same event appeared different to two different observers. This proves that simultaneity is a myth and time is relative.

As per the theory of Relativity a time shows correct duration as long as it is stationery. As soon as it starts moving, time starts slowing down. In normal speeds this slowing down is not perceived. But when we start moving closer to the speed of light, then we perceive this change.

A person who is traveling along with the watch would not be able to recognize the slowdown in time, but to a stationary observer it is clearly visible.

For example a person goes to the station and gets into a train that travels with 90% the speed of light that is 270,000 Km/Sec. In the station before getting in he corrects the time as per the clock in the station. He gets down from the train after half an hour as per his watch, but when he compares his watch with the clock in the station already an hour has elapsed. At 90% the speed of light times slows down by half. As one approaches the speed of light, times starts further slowing down and at the speed of light time stands still. If we cross the speed of light which is impossible as per the theory of Relativity, then time starts moving backwards.   
  
Similarly objects traveling would constrict in the direction of travel. Even this constriction is not visible to the person or the object that is traveling but is clear to a stationary observer.   

Again, at 90% the speed of light the object would shrink by 50% and as it approaches the speed of light it starts shrinking further till its length becomes zero at the speed of light.  

Similarly the mass of the object traveling would increase gradually and at the speed of light, the mass of the object becomes infinite.

Okay, we may not come across persons or objects that travel at such high speeds in our daily life but in the Universe such speeds are not uncommon.

All the above narrated is the Special Theory of Relativity published by Einstein in 1905. In his Special Theory of Relativity published in Einstein redefined gravitational attraction.