Stephen William Hawking is an English teoretical physicist, cosmologist, author and Director of Research at the centre for Theoretical Cosmology within the University of Cambridge. among his signific work 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 radiation, often called Hawking radiation.Buy Stephen Hawking Biography book At Kitabay Online Store.
Hawking was born on 8 January 1942 in Oxford to Frank (1905–1986) and Isobel Eileen Hawking (née Walker; 1915–2013). Hawking’s mother was born into a family of doctors in Glasgow, Scotland.His wealthy paternal great-grandfather, from Yorkshire, had over-extended himself buying farm land and then gone bankrupt in the great agricultural depression during the early 20th century.His paternal great-grandmother saved the family from financial ruin by opening a school in their home. Despite their families’ financial constraints, both parents attended the University of Oxford, where Frank read medicine and Isobel read Philosophy, Politics and Economics.Isobel worked as a secretary for a medical research institute, and Frank was a medical researcher.Hawking had two younger sisters, Philippa and Mary, and an adopted brother, Edward Frank David (1955–2003)
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