Illustration : 3 phases of black hole research
![Image](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQLIkVdwVCfRI6hYFtvHJqxNZUI6_rDjlauoz8pfZZGYkkmQByiqScUjpTmopNQGM57C5wo_sTyCVwD7JGVMfTjdv7-IAP0j7wJAKHW8MOshBX3c4ERaiau3zyGEdIviyvS1bZSME_HxTU/s640/IMG_20190218_151203.jpg)
(Welcome to the second post of “Illustrations on black holes” ,which is a series of illustrations which is based upon & Inspired Stephen Hawking’s BBC Reith Lectures on Black Holes). Phase 1 : Well , actually no one thought that black holes really exist . In fact , Albert Einstein published a research paper in 1939 suggesting that Black holes couldn’t exist because the matter couldn’t be compressed beyond a certain point. Phase 2 : This phase was actually where research on “Black holes” started & this was led by “John Archibald Wheeler” (he was the mentor of Richard Feynman) , the person who coined the term “Black hole”. This was also the phase in which interest in “Gravitational collapse“ was revived , after World War 2. Phase 3 : The modern phase where existence of black holes have been proved. This phase has been essentially been led by popular science communicator , by the likes of Stephen Hawking & gang ... Join us on : Twitter ( @ ByAal ) , WordPress