1. Who invented Floppy disk ?

Answer: IBM in 1970

2. Who invented Radiocarbon ?

Answer:

Willard Libby

3. Who invented paper ?

Answer:

Cai Lun

4. Who invented Vitamin A ?

Answer: Mc Collum and M.Davis of U.S.A. in 1913

5. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885

6. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

7. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.