1. Who invented by Electric Lamp ?

Answer: Thomas Alva Edison of U.S.A. in 1879

2. Who invented Nylon ?

Answer:

Wallace Carothers

3. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

4. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

5. Who invented Piano ?

Answer:

Bartolomeo Cristofori

6. Who invented paper ?

Answer:

Cai Lun

7. Who invented Electron ?

Answer: Thomson. J of Britain in 1897