Stephen Hawking, a great scientist.
Stephen William Hawking ,a brilliant scientist ,a discoverer,a theoretical physicist, cosmologist, author and one who unearths many mysteries of the universe passed away, in the early hours of Wednesday, at the age of 76.
Hawking was born in Oxford, England on 8 Jan 1942.He did his schooling from St. Albans school ,Hertfordshire and university education from university college, Oxford. He earned his master's and PhD at Cambridge university.
At the age of 21 he was diagnosed with ALS (Amyotrophic lateral sclerosis) also known as Lou Gehrig's disease and was told that he had just a year to two to live but he lived for longer period. But the disease left him in a wheelchair and unable to speak .The disease made him fully dependent on others. With the help of speech synthesizer he used to speak in a computerized voice.
He was mainly associated with theoretical physics that explains and predict natural phenomena using mathematical models and abstractions of physical objects. He was author of many books related to universe and our existence. Some of his popular books are ,A Brief History of Time, The grand Design, The universe in a Nutshell, My Brief History, The theory of Everything and many more.
He was famous for his work with blackholes and relativity. He discovered that blackholes were not black and emit radiations and gradually evaporate and disappear. He used the word ' Hawking radiation' in 1974.He had at least 12 honorary degrees and was awarded Presidential Medal of Freedom, Copley Medal, Albert Einstein Medal, Wolf Prize in physics and many more.