1. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

2. Who invented Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.

3. Who invented Periodic table ?

Answer:

Dmitri Mendeleev invented Periodic Table

4. Who invented Telescope ?

Answer: Hans Lippershey of Netherlands in 1608.

5. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

6. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

7. Who invented Helicopter ?

Answer:

Igor Sikorsky