1. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

2. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

3. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

4. Who invented Ball-Point Pen ?

Answer: John J. Loud of U.S.A. in 1888

5. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.

6. Who invented paper ?

Answer:

Cai Lun

7. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712