• Gene by Johanson
• Chromosomes by Waldyar
• Electric resistance by Ohm
• Electrolysis by Faraday
• Electron by J.J. Thomson in 1897
• Neutron by Chadwick
• Proton by Rutherford
• Positron by Anderson
• Ozone by Echonbein
• Planetary motion by Kepler
• Radioactivity by Bacquerel
• Radium by Currie
• Insulin by Banting & Best
• Human heart transplant by Bernard
• Vaccine (measles) by Peebles
• Vaccine (polio) by Salk
• Vaccine (rabies) by Louis Pasteur
• Vaccine (small pox) by Edward Jenner
• Cause of Malaria was discovered by Ronald Ross
• Adding machine invented by Pascal
• Atom Bomb by Otto Hahn
• Air Brake by George Washington
• Air Conditioning by H. Carier
• Airplane (with motor) by Wright Bothers
• Airplane (jet engine) by Ohain
• Automobile (electric) by William Morrison
• Automobile (differential gear) by Benz
• Bakelite by Leo Hendricks Backland
• Balloon by Mont Golfer
• Barometer by Torricelli
• Bicycle (modern) by Starley
• Bifocal lens by Benjamin Franklin
• Burner (gas) by Bunsen
• Calculating machine (digital) by Charles Babbage
• Camera (photographic) by Josef N. Niepce
• Carburetor by Daimler
• Cement by Joseph Aspidin
• Circuit breaker by Hilliard
Latest Who is Who & What is What (Complete General Knowledge Book) for PPSC PMS PCS FPSC CSS Competitive Exam Preparation Most Helping Guide of PMS Jobs Written Test MCQs Information by Adspk
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23/11/2015
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