‘Hindu cosmology’s time-scale for the universe is in consonance with modern science’

Posted on May 12, 2014

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Carl Sagan, the distinguished Cornell University astronomer and Pulitzer Prize-winning author, who succumbed to his battle against cancer on December 15, in fact lived for millions of years in the relative time scale of experience.

This legend in his own lifetime was a first grade philosopher, poet, scientist and a splendid example of human greatness all rolled into one.

His true genius lay in the many esoteric philosophical and scientific endeavours which only specialists can really appreciate. But he became an instant pop science icon when he co-authored COSMOS, a television series devoted to astronomy and space exploration.

A part of that awesome series was shot in India. In the early eighties, Sagan met then Indian diplomat Placido P D’Souza and in a conversation explained the India connection and the relevance of Gandhi.

You have been host of the television programme COSMOS which deals with astronomy and science exploration. And yet India figured in this programme. Could you tell us how India fits into this series?
Let me first say something about the series in general, and something about the Indian part of the series. The television series COSMOS is designed to breach the barrier that many people feel about science. They cannot understand it, and it is foreign to them in approach and content. Our experience is that children grow up with an absolute zest and passion for science, and something happens to discourage some of them – sometimes many of them – from pursuing this interest.

We thought it was our job to excite the children, and reawaken the interest in science of adults. So we will use any approach to gain people’s attention, and show them that science is something not just that they can understand, but that they can become excited about and can use as part of the way they view the world.

The series has been extraordinarily successful. It has been shown in a year or two in the Soviet Union and the People’s Republic of China. I hope some day it will be shown in India. The tenth episode of COSMOS is largely about cosmology – the study of the universe in a perspective in which the Earth is like a grain to stand in vast beach or desert – and the way we approach the subject is through Hindu cosmology.

We have done that for several reasons. We went to Tamil Nadu for the festival called Pongal. Like festivals all over the world, it celebrates the changing of the seasons, and remind us that our ancestors were astronomers, who kept calendars and watched the skies. It was essential for extremely practical matters: when to sow seeds and to harvest grain. It was a matter of life and death to be an astronomer.

Carl Sagan But the main reason that we oriented this episode of COSMOS towards India is because of that wonderful aspect of Hindu cosmology which first of all gives a time-scale for the Earth and the universe — a time-scale which is consonant with that of modern scientific cosmology. We know that the Earth is about 4.6 billion years old, and the cosmos, or at least its present incarnation, is something like 10 or 20 billion years old. The Hindu tradition has a day and night of Brahma in this range, somewhere in the region of 8.4 billion years.

As far as I know. It is the only ancient religious tradition on the Earth which talks about the right time-scale. We want to get across the concept of the right time-scale, and to show that it is not unnatural. In the West, people have the sense that what is natural is for the universe to be a few thousand years old, and that billions is indwelling, and no one can understand it. The Hindu concept is very clear. Here is a great world culture which has always talked about billions of years.

Finally, the many billion year time-scale of Hindu cosmology is not the entire history of the universe, but just the day and night of Brahma, and there is the idea of an infinite cycle of births and deaths and an infinite number of universes, each with its own gods.

And this is a very grand idea. Whether it is true or not, is not yet clear. But it makes the pulse quicken, and we thought it was a good way to approach the subject.

And then the Chola bronzes in Tamil Nadu were very lovely to film, and gave us a visual approach to go along with the intellectual approach. It was also a way of de-provincialising our presentation. After all, we claim that science is an endeavor of the human species. To shoot the whole film in the United States or Western Europe would have been extremely provincial. We shot in Japan and 12 or 14 other countries, besides India. Let me also say that the subsidiary benefit for my wife and me is that we had a chance to visit India for the first time, and especially Tamil Nadu which we enjoyed enormously.

You mentioned the Chola bronzes and I see also that in your book COSMOS one of the chapters called ‘The edge of forever’ begins with a picture of Nataraja. Could you say something to explain its relevance in that chapter?
The traditional explanation of the Nataraja is that it symbolises the creation of the universe in one hand and the death of the universe in the other – the drum and the flame – and after all, that is what cosmology is all about. So in addition to being artistically exquisite, the Nataraja provides exactly the kind of symbolism that we wanted. The Nataraja that is photographed in the book COSMOS is in a museum in Pasadena, California, but it will be returned to India at some specified time within the next decade.

What were your general impressions about India?
I was absolutely delighted with Tamil Nadu. First of all, there was the sense of an intact cultural framework. I did not have the sense of people greatly alienated from their society – you certainly see a great deal of that in the West. I had a sense of people caring for each other, an intact social fabric, and technology coming along quite fast. Not just large industrial parks.

In a way what impressed me most was the widespread use of the bicycle, not only for carrying agricultural products and manufactures from one place to another, but also as a means for young people to visit neighbouring villages, and a sense of exuberant communication, because now people are not closed in a small village. They have a much wider range of places that they have access to.

We spent some time in Madras and in Bombay. But these were slow stages to get us to Tamil Nadu. We saw mainly tourist things which were certainly pleasant, but we did not have the sense of getting to know the people. We could have, but it did not work out that way, whereas in Tamil Nadu we got to know the people.

I will give you an example. Here we are at 6:30 or 7 in the morning – a group of us consisting of cameramen, soundmen, writers, directors, producers and me, who go marching single file by a pond in which there are lovely lily and lotus blossoms. Going to two small temples of the bull god (Nandi). A boy, less than 10 years old, saw us coming, looked at us, dove into the pond and came up near a lotus flower. He then swam back with it, climbed out of the pond, went up to my wife, gave her the lotus blossom and introduced himself, saying “Hello, my name is…” I forget what his name was. It was done with such elegance and charm and with no thought of reward, but just a sensibility which I found very impressive. Anyway we loved it. How colorful it was…

Carl Sagan I must also say the sari is a kind of work of art, especially seeing hundreds of them all together. Also, women washing the saris gives a kind of swatch of color to the landscape… I thought it was wonderful… I had a sense of a healthy society. I didn’t know to what extent this is characteristic or not, but I was very impressed and would love to have a chance to go back…

Well, you know you have a standing invitation to visit India…Was that your first visit?
Yes. I had been invited before by a number of people, including J B S Haldane, a British biologist in Bhubaneshwar. I knew him well in the last few years of his life. He even made me promise to visit him in Orissa, but he died before I had a chance to do so.

Did you know any other Indian scientists?
Oh, yes. I knew Vikram Sarabhai who spent a year at Cambridge, Massachusetts, when I was on the Harvard faculty. I was a student of the world-renowned astrophysicist Subramanian Chandrasekhar at the University of Chicago. An old friend from the graduate school days in Kameshwar Wali, now a Professor of Physics at Syracuse University. For 17 years a close colleague who has been working with me in laboratory experiments on the origins of life is Bishun Khare. So I had a succession of fairly close friendships with Indians. I have always felt some natural affinity, I suppose.

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