1. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

2. Who invented colour television ?

Answer:

Peter Carl Goldmark

3. Who invented Vitamin A ?

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

4. Who invented paper ?

Answer:

Cai Lun

5. Who invented Automatic rifle ?

Answer: John Browning of U.S.A. in 1918.

6. Who invented by Electric Lamp ?

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

7. Who invented Bicyle ?

Answer: Kirkpatrick Macmillan of Britain.