1. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

2. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

3. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

4. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams

5. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

6. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

7. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.