1. Who invented Java Language ?

Answer:

James Gosling

2. Who invented Periodic table ?

Answer:

Dmitri Mendeleev invented Periodic Table

3. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist

4. Who invented Telescope ?

Answer: Hans Lippershey of Netherlands in 1608.

5. Who invented X-ray ?

Answer: W.K. Roentgen of Germany in 1895.

6. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

7. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903