1. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

2. Who invented Bicyle ?

Answer: Kirkpatrick Macmillan of Britain.

3. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

4. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765

5. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698

6. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

7. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm