1. Who invented Submarine ?

Answer:

John Philip Holland

2. Who invented colour television ?

Answer:

Peter Carl Goldmark

3. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765

4. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist

5. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

6. Who invented google ?

Answer:

Larry Page

7. Who invented Vitamin K ?

Answer: Doisy Dam of U.S.A. in 1938.