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Roddam Narasimha (born 20 July 1933) is an Indian aerospace scientist and fluid dynamicist. He was a Professor of Aerospace Engineering at the Indian Institute of Science (IISc), Director of National Aerospace Laboratories (NAL) and the Chairman of Engineering Mechanics Unit at Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, India. He is now an Honorary Professor at JNCASR and concurrently holds the Pratt & Whitney Chair in Science and Engineering at the University of Hyderabad. Narasimha has been awarded the Padma Vibushan, India's second highest civilian award, in 2013.

Education and career

He obtained his BE from Mysore University , from University Visvesvaraya College of Engineering in 1953 and his ME from Indian Institute of Science, Bangalore in 1955. He worked with Satish Dhawan during his time at IISc. He then worked with Hans Liepmann at the California Institute of Technology (Caltech), United States to obtain his PhD degree in 1961.

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Abhay Vasant Ashtekar (born July 5, 1949) is an Indian theoretical physicist. He is the Eberly Professor of Physics and the Director of the Institute for Gravitational Physics and Geometry at Pennsylvania State University. As the creator of Ashtekar variables, he is one of the founders of loop quantum gravity and its subfield loop quantum cosmology. He has also written a number of descriptions of loop quantum gravity that are accessible to non-physicists. In 1999, Ashtekar and his colleagues were able to calculate the entropy for a black hole, matching a legendary 1974 prediction by Hawking. Oxford mathematical physicist Roger Penrose has described Ashtekar's approach to quantum gravity as "The most important of all the attempts at 'quantizing' general relativity." Ashtekar was elected as Member to National Academy of Sciences in May 2016.

Fields

• Loop Quantum Gravity

Institutions

• Pennsylvania State University

Awards

• Member of National Academy of Sciences,


• First Gravity Prize by the Gravity Research Foundation


• Massachusetts

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