1. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams

2. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

3. Who invented Periodic table ?

Answer:

Dmitri Mendeleev invented Periodic Table

4. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

5. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

6. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

7. Who invented Radiocarbon ?

Answer:

Willard Libby