Stephen Hawking, one of the greatest minds of our lifetime has passed away at the age of 76, he was a British Physicist, known for his contributions to the fields of Physics, cosmology, general relativity and especially in Black Holes.

 Here are Three things you should know about Stephan Hawking.

1. His book "A Brief History of Time" is a masterpiece

In 1988, Hawking published a book targeting non-scientists to help explain fundamental questions such as how the universe started and whether it will end. It set a record by spending more than five years on The Sunday Times bestseller list.

2. Black Holes the Great Discovery

Stephan Hawking showed Albert Einstein's theory of relativity suggested space and time had a definitive beginning and end.  in the 1970s, Hawking proposed that radiation actually can escape from a black hole, because of the laws of quantum mechanics.

3. Serious Disease ALS diagnosed at the age of 21

Amyotrophic lateral sclerosis (ALS), also known as motor neurons disease (MND), In this medical problems human Neurons doesn't work ALS is characterized by stiff muscles, muscle twitching, and gradually worsening weakness due to muscles decreasing in size.in this disease patient face difficulty in speaking, breathing and swallowing anything. In this serious Disease subject cannot live more than 3 Years once ALS diagnosed but Stephan Hawking lived 76 years, Doctor's says Stephan genetics must have played a vital role for his long life.

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