1. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

2. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

3. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

4. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

5. Who invented Nylon ?

Answer:

Wallace Carothers

6. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist

7. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912