1. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

2. Who invented X-ray ?

Answer: W.K. Roentgen of Germany in 1895.

3. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

4. Who invented Chloroform as anaesthetic ?

Answer: James Simpson of Britain in 1847.

5. Who invented Transistor ?

Answer: Bardeen, Shockley & Britain of U.S.A. in 1948

6. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

7. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747