1. Who invented Piano ?

Answer:

Bartolomeo Cristofori

2. Who invented DNA Structure ?

Answer: Crick(UK), Waston(US), Wilkins(UK) in 1951

3. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

4. Who invented Bicyle ?

Answer: Kirkpatrick Macmillan of Britain.

5. Who invented Transistor ?

Answer: Bardeen, Shockley & Britain of U.S.A. in 1948

6. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

7. Who invented Nylon ?

Answer:

Wallace Carothers