1. Who invented Vitamin K ?

Answer: Doisy Dam of U.S.A. in 1938.

2. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

3. Who invented colour television ?

Answer:

Peter Carl Goldmark

4. Who invented DNA Structure ?

Answer: Crick(UK), Waston(US), Wilkins(UK) in 1951

5. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams

6. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832

7. Who invented Atomic Bomb ?

Answer: J. Robert Oppenheimer of U.S.A. in 1945