Browsing Youth

Stephen Hawking (1942-2018) was considered as a great scientist of the 21st century . He did research on black hole and many more things of the galaxy . he worked on the basic law which given the universe with Roger Penrose. He showed that Einsteins general theory of relativity implied space and time would have a beginning in the big bang and end in the Black Hole . Hawking's for the first time , used Quantum Mechanics in the general realistic realm and rigorously showed that Black Hole can Radiate and has Temperature. After some years at the age of 21 professor Stephen Hawking were diagnosed of a motor neurological disease which made him paralyzed . He was the give a wheel chair by the company Mahindra & Mahindra which accompanied of a voice synthesizer. His contribution to the world is important . His some of the famous Quotes : 1) life would be tragic if weren't funny . 2) My goal is simple , it is complete understanding of the universe, why it is as it

Albert Einstein first predicted black holes in 1916 with his  general theory of relativity .  There are three types: stellar black holes, supermassive black holes and intermediate black hole. Stellar black hole A  stellar black hole    is a  black hole  formed by the  gravitational collapse  of a massive  star . They have masses ranging from about 5 to several tens of  solar masses . By the  no-hair theorem , a black hole can only have three fundamental properties: mass, electric charge and angular momentum . It is believed that black holes formed in nature all have spin, but no definite observation of the spin has been recorded. Our  Milky Way galaxy  contains several stellar-mass Black Hole Candidates (BHCs) which are closer to us than the supermassive black hole in the  Galactic center . Supermassive black hole A  supermassive black hole    is the largest type of  black hole , on the order of hundreds of thousands to billions of  solar masses   , and is found in th