1. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

2. Who invented Refrigerator ?

Answer:

Oliver Evans in 1805

3. Who invented paper ?

Answer:

Cai Lun

4. Who invented Chloroform as anaesthetic ?

Answer: James Simpson of Britain in 1847.

5. Who invented Transformer ?

Answer:

Ottó Bláthy

6. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

7. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765