In 1970, Hawking postulated what became known as the second law of black hole dynamics , that the event horizon of a black hole can never get smaller.  With James M. Bardeen and Brandon Carter , he proposed the four laws of black hole mechanics , drawing an analogy with thermodynamics .  To Hawking's irritation, Jacob Bekenstein , a graduate student of John Wheeler , went further—and ultimately correctly—to apply thermodynamic concepts literally.   In the early 1970s, Hawking's work with Carter, Werner Israel and David C. Robinson strongly supported Wheeler's no-hair theorem that no matter what the original material from which a black hole is created, it can be completely described by the properties of mass , electrical charge and rotation.   His essay titled "Black Holes" won the Gravity Research Foundation Award in January 1971.  Hawking's first book, The Large Scale Structure of Space-Time , written with George Ellis , was published in 1973. 
Prof. Thomas Hopkins, is Emeritus Professor of Religious Studies at Franklin and Marshall College, USA. He is the author of The Hindu Religious Tradition and has published numerous articles and encyclopaedia entries on all aspects on Indian religious life ranging from the Indus Civilisation to modern Bengal Vaishnavism. His special interest in the Vaishnava devotional tradition led to his first meeting with A. C. Bhaktivedanta Swami in New York in 1966, which focused his attention on the newly emerging ISKCON movement and started a long-term study of ISKCON's history and theology.