1. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist

2. Who invented colour television ?

Answer:

Peter Carl Goldmark

3. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

4. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

5. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

6. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.

7. Who invented by Electric Lamp ?

Answer: Thomas Alva Edison of U.S.A. in 1879