1. Who invented Atomic Bomb ?

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

2. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

3. Who invented Computer ?

Answer:

Charles Babbage

4. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

5. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

6. Who invented Vitamin A ?

Answer: Mc Collum and M.Davis of U.S.A. in 1913

7. Who invented HIV ?

Answer: