1. Who invented Safety Pin ?

Answer: Walter Hunt of U.S.A. in 1849

2. Who invented Bicyle ?

Answer: Kirkpatrick Macmillan of Britain.

3. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

4. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

5. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams

6. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

7. Who invented c language

Answer:

Dennis Ritchie