1. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

2. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

3. Who invented Vitamin K ?

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

4. Who invented Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.

5. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

6. Who invented Submarine ?

Answer:

John Philip Holland

7. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832