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Inventions And Discoveries Who discovered natural radioactivity Ans : Hentry Bequeral Hydrogen was discovered by Ans : Cavendish Who invented Microprocessor Ans : Ted Hoff Name the scientist who proposed Doppler Effect Ans : Christian Doppler Who discovered Argon Ans : Ramsay Name the scientist who proposed pH value Ans : Sorenson Who discovered the Law of Gravitation Ans : Sir Isaac Newton Who discovered penicillin Ans : Alexander Fleming Who invented dynamite Ans : Alfred Nobel |