1. Who invented Printing Press ?

Answer:

Johannes Gutenberg

2. Who invented Computer ?

Answer:

Charles Babbage

3. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

4. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

5. Who invented Nylon ?

Answer:

Wallace Carothers

6. Who invented Piano ?

Answer:

Bartolomeo Cristofori

7. Who invented Stainless Steel ?

Answer: Harry Brearley of Britain in 1913.