1. Who invented Ball-Point Pen ?

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

2. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

3. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805

4. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

5. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

6. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

7. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.