1. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

2. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

3. Who invented Piano ?

Answer:

Bartolomeo Cristofori

4. Who invented Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.

5. Who invented Helicopter ?

Answer:

Igor Sikorsky

6. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

7. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932