1. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

2. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

3. Who invented Nylon ?

Answer:

Wallace Carothers

4. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

5. Who invented X-ray ?

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

6. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

7. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805