1. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams

2. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

3. Who invented Floppy disk ?

Answer: IBM in 1970

4. Who invented Super Computer ?

Answer:

Seymour Cray

5. Who invented Chloroform as anaesthetic ?

Answer: James Simpson of Britain in 1847.

6. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885

7. Who invented paper ?

Answer:

Cai Lun