1. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist

2. Who invented Chloroform as anaesthetic ?

Answer: James Simpson of Britain in 1847.

3. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

4. Who invented Vitamin A ?

Answer: Mc Collum and M.Davis of U.S.A. in 1913

5. Who invented Television ?

Answer:

John Logie Baird

6. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

7. Who invented Electron ?

Answer: Thomson. J of Britain in 1897