1. Who invented colour television ?

Answer:

Peter Carl Goldmark

2. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

3. Who invented Helicopter ?

Answer:

Igor Sikorsky

4. Who invented Transistor ?

Answer: Bardeen, Shockley & Britain of U.S.A. in 1948

5. Who invented Vitamin A ?

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

6. Who invented Steam Engine (Condenser)

Answer: James Watt of Britain in 1765

7. Who invented Machine Gun ?

Answer:

Helge Palmcrantz, Swedish inventor and industrialist