1. Who invented Vitamin K ?

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

2. Who invented Atomic numbers ?

Answer: Moseley of Britain in 1913

3. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

4. Who invented Vitamin D ?

Answer:

Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922

5. Who invented colour television ?

Answer:

Peter Carl Goldmark

6. Who invented Proton ?

Answer:

Ernest Rutherford

7. Who invented Helicopter ?

Answer:

Igor Sikorsky