1. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

2. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

3. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

4. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885

5. Who invented Proton ?

Answer:

Ernest Rutherford

6. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683

7. Who invented Vitamin K ?

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