1. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

2. Who invented X-ray ?

Answer: W.K. Roentgen of Germany in 1895.

3. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

4. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

5. Who invented Radiocarbon ?

Answer:

Willard Libby

6. Who invented Laser ?

Answer:

Charles H. Townes

7. Who invented Transistor ?

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