Stephen Hawking A Personal Journey PBS

Stephen Hawking A Personal Journey PBS Stephen William Hawking CH CBE FRS FRSA (Listeni/ˈstiːvən ˈhɔːkɪŋ/; born 8 January 1942) is an English theoretical physicist, cosmologist, author and Director of Research at the Centre for Theoretical Cosmology within the University of Cambridge.[14][15] Among his significant scientific works have been a collaboration with Roger Penrose on gravitational singularity theorems in the framework of general relativity, and the theoretical prediction that black holes emit ra