1. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

2. Who invented Printing Press ?

Answer:

Johannes Gutenberg

3. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

4. Who invented Automatic rifle ?

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

5. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

6. Who invented Super Computer ?

Answer:

Seymour Cray

7. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683