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.