1. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

2. Who invented Laser ?

Answer:

Charles H. Townes

3. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

4. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

5. Who invented Super Computer ?

Answer:

Seymour Cray

6. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

7. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist