1. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765

2. Who invented Submarine ?

Answer:

John Philip Holland

3. Who invented Radiocarbon ?

Answer:

Willard Libby

4. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

5. Who invented Circulation of blood ?

Answer: William Harvey of Britain in 1628

6. Who invented Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.

7. Who invented Super Computer ?

Answer:

Seymour Cray