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Mukunda, N.
- Atomic State: Big Science in Twentieth-Century India
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1 # 103, 6th Main Road, Malleswaram, Bangalore 560 003, IN
1 # 103, 6th Main Road, Malleswaram, Bangalore 560 003, IN
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Current Science, Vol 107, No 11 (2014), Pagination: 1897-1899Abstract
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- Memorial Volume for Y. Nambu
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1 103, 6th Main Road, Malleswaram, Bengaluru 560 003, IN
1 103, 6th Main Road, Malleswaram, Bengaluru 560 003, IN
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Current Science, Vol 112, No 01 (2017), Pagination: 169-170Abstract
Asia's first two Nobel Prize winners, in 1913 and 1930, were from India. Thereafter, among Asian countries, recognition of excellence at the Nobel level accorded to Japan has been truly inspiring. In the 67 years from 1949 up to now, this prize has been given to a Japanese 25 times. The largest number has been in physics - 11 in all, 5 in theory and 6 in experiments - followed by 7 in chemistry, 4 in medicine or physiology, 2 in literature, and 1 in peace.Full Text
- The Character of Physical Law
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1 103, 6th Main Road, Malleswaram, Bengaluru 560 003, IN
1 103, 6th Main Road, Malleswaram, Bengaluru 560 003, IN
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Current Science, Vol 114, No 07 (2018), Pagination: 1554-1555Abstract
The Messenger Lectures at Cornell University were instituted in 1924 by Hiram J. Messenger ‘to provide a course or courses of lectures on the evolution of civilization for the special purpose of raising the moral standard of our political, business and social life’. In November 1964, Feynman gave seven lectures, extempore with the help of brief notes, on ‘The Character of Physical Law’. The transcripts were prepared and published by BBC in 1965.Full Text
- Preface
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Current Science, Vol 116, No 2 (2019), Pagination: 177-178Abstract
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- The Life and Work of E. C. George Sudarshan
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1 INSA Distinguished Professor, Indian Academy of Sciences, Bengaluru - 560 080, IN
1 INSA Distinguished Professor, Indian Academy of Sciences, Bengaluru - 560 080, IN
Source
Current Science, Vol 116, No 2 (2019), Pagination: 179-192Abstract
E. C. G. Sudarshan is widely regarded as the most gifted theoretical physicist of Indian origin in the latter half of the 20th century. This article describes his early student years in India, and at the Tata Institute of Fundamental Research in Bombay, before he left for USA in 1955 to work with R. E. Marshak at the University of Rochester. It then recounts his career as it evolved thereafter, and his decision to settle there. His contributions in many areas of physics, in each of which he made a distinct mark, are recalled. In particular, his work on the V-A theory of the weak interactions, and on the Diagonal Representation in quantum optics, are described in some depth and detail. Sudarshan maintained strong links with the Indian physics and scientific communities all his life. From the 1970s onwards, he was at the Indian Institute of Science in Bangalore, and then at the Institute of Mathematical Sciences in Madras, till 1990. The events of this period are recounted. Some remarks on his personality, and his views on life and philosophy, conclude the article.Keywords
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References
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- It took ten years, from 1919 to 1929, to establish that the electron energy spectrum was continuous. In the early 1920s, it seemed apparent that it was continuous except for some gamma-ray lines. Soon the continuity was clearly established by the work of C. D. Ellis and collaborators in England. But the outstanding experimentalist Lise Meitner (1878–1968) believed firmly in the spectrum being discrete, and did experiments to prove her claim. Ellis and co-workers did further experiments to support the continuous spectrum claim, but Meitner kept coming back with more data and arguments. Finally Ellis and Wooster did a calorimetric measurement which conclusively established the continuity of the spectrum; but Meitner would not agree until she had repeated the experiment herself. By now it was 1929.
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- The μ meson was initially mistaken for that predicted by the Yukawa theory. It was only in a 1943 paper by S. Sakata and T. Inoue, published in 1946, that it was suggested that π mesons are made by cosmic rays, followed by the sequence of decay processes π− → μ− + ν−μ and μ− → e− +ν−e + νμ. All these varieties of neutrinos were not known then, but they did suggest that νμ is a spin 1/2 neutral particle like νe but possibly different.
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- This is reprinted in the 2006 volume edited by Ranjit Nair mentioned in the section ‘Events and publications from 2006’.
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- Probably the most extreme case of this kind in physics is that of Arnold Sommerfeld (1868–1951). Between 1917 and 1951, he was nominated 84 times for the Nobel Prize, practically every year, but was never chosen. Among those who nominated him were Max Planck, Max von Laue, Wilhelm Wien, Robert Millikan, James Franck, and Enrico Fermi, all Nobelists. However, neither Albert Einstein nor Niels Bohr did so. Interestingly, none of his own ‘Nobel’ students – Werner Heisenberg, Wolfgang Pauli, Hans Bethe and Pieter Debye – ever nominated him.
- George Sudarshan. In Science and the Spiritual Quest: New Essays by Leading Scientists (ed. Mark Richardson, W.), Routledge, 2002.