1. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

2. Who invented Helicopter ?

Answer:

Igor Sikorsky

3. Who invented Submarine ?

Answer:

John Philip Holland

4. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin

5. Who invented Hydrogen bomb ?

Answer:

Edward Teller

6. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

7. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932