1. Who invented Java Language ?

Answer:

James Gosling

2. Who invented Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.

3. Who invented Atomic numbers ?

Answer: Moseley of Britain in 1913

4. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

5. Who invented Submarine ?

Answer:

John Philip Holland

6. Who invented Floppy disk ?

Answer: IBM in 1970

7. Who invented Steam Engine ?

Answer: Thomas Savery of Britain in 1698