1. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

2. Who invented Transformer ?

Answer:

Ottó Bláthy

3. Who invented Vaccine of Rabies ?

Answer: Louis Pasteur of France in 1885

4. Who invented Automatic rifle ?

Answer: John Browning of U.S.A. in 1918.

5. Who invented Printing Press ?

Answer:

Johannes Gutenberg

6. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805

7. Who invented c language

Answer:

Dennis Ritchie