In this video we will find the answers of the following questions:
Who discovered penicillin in 1929?/who discovered oxygen in 1774?/who discovered vaccine in 1796?/who discovered polio vaccine?/who discovered insulin?/who discovered iodine?/who discovered DNA?/who discovered aspirin in 1897?/who discovered surgery?/who discovered chloroform?/who discovered digital computer?/who discovered paper?/who discovered lightning rod?/who discovered first radio signal?/who discovered television?/who discovered battery?/who discovered remote, induction motor?/who discovered revolver?/who discovered English dictionary?/who discovered ballpoint pen?/who discovered solar system?/who discovered bicycle?/who discovered nuclear fission?/who discovered thermometer?/who discovered geometry?/ who discovered shorthand system?/who discovered hydrogen bomb?/who invented neutron bomb?/who discovered superconductor?/who invented gasoline car?
#science #inventions #gk

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I am Professor Hafiz Khalil Ahmad. I am an experienced instructor of Competitive Exams regarding the Public Service Commission. Get in touch with me 24/7 hours via email: hafizkhlilahmad4@gmail.com.
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